./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 36d1a8e991d0ba1b082944dbede48ef8c84f35de .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:13:23,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:13:23,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:13:23,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:13:23,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:13:23,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:13:23,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:13:23,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:13:23,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:13:23,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:13:23,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:13:23,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:13:23,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:13:23,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:13:23,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:13:23,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:13:23,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:13:23,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:13:23,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:13:23,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:13:23,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:13:23,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:13:23,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:13:23,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:13:23,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:13:23,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:13:23,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:13:23,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:13:23,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:13:23,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:13:23,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:13:23,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:13:23,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:13:23,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:13:23,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:13:23,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:13:23,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:13:23,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:13:23,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:13:23,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:13:23,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:13:23,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 02:13:23,347 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:13:23,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:13:23,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:13:23,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:13:23,360 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:13:23,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:13:23,360 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:13:23,361 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:13:23,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:13:23,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:13:23,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:13:23,362 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 02:13:23,362 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 02:13:23,362 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 02:13:23,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:13:23,363 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 02:13:23,363 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 02:13:23,363 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:13:23,363 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:13:23,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:13:23,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:13:23,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:13:23,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:13:23,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:13:23,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:13:23,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:13:23,367 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 02:13:23,367 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 02:13:23,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 02:13:23,368 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_2475be65-8f70-4069-99b2-4b201469c503/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 -> 36d1a8e991d0ba1b082944dbede48ef8c84f35de [2019-11-20 02:13:23,558 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:13:23,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:13:23,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:13:23,581 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:13:23,581 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:13:23,582 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2019-11-20 02:13:23,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/bin/uautomizer/data/cc49fd016/2fc4c4ca6bf84c0cae98295e1c1ece58/FLAGe5e1c4b95 [2019-11-20 02:13:24,177 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:13:24,178 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2019-11-20 02:13:24,201 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/bin/uautomizer/data/cc49fd016/2fc4c4ca6bf84c0cae98295e1c1ece58/FLAGe5e1c4b95 [2019-11-20 02:13:24,391 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/bin/uautomizer/data/cc49fd016/2fc4c4ca6bf84c0cae98295e1c1ece58 [2019-11-20 02:13:24,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:13:24,396 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 02:13:24,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:13:24,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:13:24,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:13:24,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:13:24" (1/1) ... [2019-11-20 02:13:24,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a6f7b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:24, skipping insertion in model container [2019-11-20 02:13:24,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:13:24" (1/1) ... [2019-11-20 02:13:24,422 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:13:24,498 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:13:24,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:13:25,002 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:13:25,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:13:25,181 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:13:25,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:25 WrapperNode [2019-11-20 02:13:25,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:13:25,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:13:25,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:13:25,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:13:25,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:25" (1/1) ... [2019-11-20 02:13:25,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:25" (1/1) ... [2019-11-20 02:13:25,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:25" (1/1) ... [2019-11-20 02:13:25,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:25" (1/1) ... [2019-11-20 02:13:25,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:25" (1/1) ... [2019-11-20 02:13:25,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:25" (1/1) ... [2019-11-20 02:13:25,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:25" (1/1) ... [2019-11-20 02:13:25,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:13:25,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:13:25,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:13:25,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:13:25,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 02:13:25,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 02:13:25,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:13:25,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 02:13:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 02:13:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 02:13:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 02:13:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 02:13:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 02:13:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 02:13:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 02:13:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 02:13:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 02:13:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 02:13:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 02:13:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 02:13:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 02:13:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 02:13:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 02:13:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 02:13:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 02:13:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 02:13:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 02:13:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 02:13:25,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 02:13:25,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 02:13:25,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 02:13:25,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 02:13:25,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 02:13:25,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 02:13:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 02:13:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 02:13:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 02:13:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 02:13:25,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 02:13:25,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 02:13:25,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 02:13:25,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 02:13:25,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 02:13:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 02:13:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 02:13:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 02:13:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2019-11-20 02:13:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2019-11-20 02:13:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2019-11-20 02:13:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_unsafe_19 [2019-11-20 02:13:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2019-11-20 02:13:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 02:13:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 02:13:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 02:13:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 02:13:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 02:13:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 02:13:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 02:13:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 02:13:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 02:13:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 02:13:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 02:13:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 02:13:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 02:13:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 02:13:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 02:13:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 02:13:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 02:13:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 02:13:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 02:13:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 02:13:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 02:13:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 02:13:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 02:13:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 02:13:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 02:13:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 02:13:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 02:13:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 02:13:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 02:13:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 02:13:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 02:13:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 02:13:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 02:13:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 02:13:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 02:13:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 02:13:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 02:13:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 02:13:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 02:13:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 02:13:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 02:13:25,420 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 02:13:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 02:13:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 02:13:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 02:13:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 02:13:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 02:13:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 02:13:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 02:13:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 02:13:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 02:13:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 02:13:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 02:13:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 02:13:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 02:13:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 02:13:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 02:13:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 02:13:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 02:13:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 02:13:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 02:13:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 02:13:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 02:13:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 02:13:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 02:13:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 02:13:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 02:13:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 02:13:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 02:13:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 02:13:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 02:13:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 02:13:25,428 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 02:13:25,429 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 02:13:25,429 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 02:13:25,429 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 02:13:25,429 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 02:13:25,430 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 02:13:25,430 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 02:13:25,430 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 02:13:25,430 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 02:13:25,430 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 02:13:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 02:13:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 02:13:25,432 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 02:13:25,436 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 02:13:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 02:13:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 02:13:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 02:13:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 02:13:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 02:13:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 02:13:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 02:13:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 02:13:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 02:13:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 02:13:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 02:13:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 02:13:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 02:13:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 02:13:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 02:13:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 02:13:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 02:13:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 02:13:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 02:13:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 02:13:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 02:13:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 02:13:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 02:13:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 02:13:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 02:13:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 02:13:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 02:13:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 02:13:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 02:13:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 02:13:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 02:13:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 02:13:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 02:13:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 02:13:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 02:13:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 02:13:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 02:13:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 02:13:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 02:13:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 02:13:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 02:13:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 02:13:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 02:13:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 02:13:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 02:13:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 02:13:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 02:13:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 02:13:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 02:13:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:13:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 02:13:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 02:13:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 02:13:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 02:13:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 02:13:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 02:13:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 02:13:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 02:13:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 02:13:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 02:13:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 02:13:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 02:13:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 02:13:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 02:13:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 02:13:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 02:13:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 02:13:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 02:13:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 02:13:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 02:13:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 02:13:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 02:13:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 02:13:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 02:13:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2019-11-20 02:13:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2019-11-20 02:13:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2019-11-20 02:13:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure probe_unsafe_19 [2019-11-20 02:13:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2019-11-20 02:13:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 02:13:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:13:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 02:13:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 02:13:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 02:13:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:13:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 02:13:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 02:13:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 02:13:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 02:13:26,148 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 02:13:26,681 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 02:13:27,104 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:13:27,110 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 02:13:27,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:13:27 BoogieIcfgContainer [2019-11-20 02:13:27,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:13:27,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:13:27,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:13:27,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:13:27,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:13:24" (1/3) ... [2019-11-20 02:13:27,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c129ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:13:27, skipping insertion in model container [2019-11-20 02:13:27,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:13:25" (2/3) ... [2019-11-20 02:13:27,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c129ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:13:27, skipping insertion in model container [2019-11-20 02:13:27,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:13:27" (3/3) ... [2019-11-20 02:13:27,121 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test19-2.i [2019-11-20 02:13:27,130 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:13:27,141 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 94 error locations. [2019-11-20 02:13:27,153 INFO L249 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2019-11-20 02:13:27,175 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:13:27,175 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 02:13:27,175 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:13:27,175 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:13:27,175 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:13:27,176 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:13:27,176 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:13:27,176 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:13:27,208 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-11-20 02:13:27,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 02:13:27,218 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:13:27,219 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:13:27,220 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 02:13:27,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:27,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1880604432, now seen corresponding path program 1 times [2019-11-20 02:13:27,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:13:27,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1560676187] [2019-11-20 02:13:27,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 02:13:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:27,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 02:13:27,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:27,654 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 02:13:27,655 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:13:27,663 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:13:27,663 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 02:13:27,664 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 02:13:27,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:13:27,733 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:13:27,938 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 02:13:27,939 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1560676187] [2019-11-20 02:13:27,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:13:27,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-11-20 02:13:27,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457798082] [2019-11-20 02:13:27,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 02:13:27,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:13:27,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 02:13:27,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-20 02:13:27,969 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 7 states. [2019-11-20 02:13:28,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:13:28,882 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2019-11-20 02:13:28,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 02:13:28,884 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-20 02:13:28,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:13:28,914 INFO L225 Difference]: With dead ends: 140 [2019-11-20 02:13:28,914 INFO L226 Difference]: Without dead ends: 137 [2019-11-20 02:13:28,916 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-11-20 02:13:28,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-20 02:13:28,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 96. [2019-11-20 02:13:28,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-11-20 02:13:29,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2019-11-20 02:13:29,002 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 15 [2019-11-20 02:13:29,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:13:29,003 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2019-11-20 02:13:29,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 02:13:29,003 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2019-11-20 02:13:29,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 02:13:29,004 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:13:29,005 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:13:29,208 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:13:29,214 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 02:13:29,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:29,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1880604433, now seen corresponding path program 1 times [2019-11-20 02:13:29,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:13:29,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1143155251] [2019-11-20 02:13:29,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 02:13:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:29,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 02:13:29,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:29,576 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 02:13:29,576 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:13:29,588 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:13:29,588 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 02:13:29,589 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 02:13:29,679 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 02:13:29,679 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:13:29,793 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:13:30,084 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 02:13:30,084 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1143155251] [2019-11-20 02:13:30,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:13:30,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-20 02:13:30,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353025419] [2019-11-20 02:13:30,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 02:13:30,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:13:30,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 02:13:30,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-20 02:13:30,088 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 10 states. [2019-11-20 02:13:31,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:13:31,668 INFO L93 Difference]: Finished difference Result 135 states and 159 transitions. [2019-11-20 02:13:31,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 02:13:31,669 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2019-11-20 02:13:31,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:13:31,671 INFO L225 Difference]: With dead ends: 135 [2019-11-20 02:13:31,671 INFO L226 Difference]: Without dead ends: 135 [2019-11-20 02:13:31,672 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-11-20 02:13:31,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-11-20 02:13:31,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 110. [2019-11-20 02:13:31,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-20 02:13:31,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 134 transitions. [2019-11-20 02:13:31,687 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 134 transitions. Word has length 15 [2019-11-20 02:13:31,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:13:31,687 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 134 transitions. [2019-11-20 02:13:31,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 02:13:31,688 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 134 transitions. [2019-11-20 02:13:31,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 02:13:31,689 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:13:31,689 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:13:31,894 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:13:31,895 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 02:13:31,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:13:31,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1880574642, now seen corresponding path program 1 times [2019-11-20 02:13:31,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:13:31,913 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1127692555] [2019-11-20 02:13:31,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 02:13:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:13:32,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 02:13:32,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:13:32,278 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 02:13:32,279 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:13:32,292 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:13:32,296 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 02:13:32,297 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:13:32,314 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:13:32,314 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 02:13:32,315 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 02:13:34,472 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 02:13:34,474 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 02:13:34,474 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:13:34,485 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:13:34,494 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:13:34,495 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 02:13:34,495 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:13:34,504 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:13:34,505 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 02:13:34,505 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2019-11-20 02:13:34,524 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 02:13:34,525 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:13:34,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:13:36,829 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:13:36,829 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:13:36,830 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:13:36,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:13:36,834 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:13:36,834 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:13:36,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:13:36,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:13:42,326 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2019-11-20 02:13:42,332 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:13:51,010 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 02:13:51,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1127692555] [2019-11-20 02:13:51,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:13:51,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-20 02:13:51,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823765713] [2019-11-20 02:13:51,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 02:13:51,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:13:51,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 02:13:51,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=143, Unknown=7, NotChecked=0, Total=182 [2019-11-20 02:13:51,011 INFO L87 Difference]: Start difference. First operand 110 states and 134 transitions. Second operand 14 states. [2019-11-20 02:14:20,295 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_prenex_1 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_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|))) (forall ((v_probe_unsafe_19_~a.base_BEFORE_CALL_6 (_ BitVec 32)) (v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv4 32))) (.cse1 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (exists ((v_ldv_malloc_~size_13 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_4| (_ BitVec 32))) (and (not (bvsle (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_4| v_ldv_malloc_~size_13) v_probe_unsafe_19_~a.base_BEFORE_CALL_6))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_4|) (_ bv0 1)))) (bvsle .cse1 (select |c_#length| v_probe_unsafe_19_~a.base_BEFORE_CALL_6)) (not (bvsle .cse0 .cse1)))))) is different from false [2019-11-20 02:14:33,368 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv8 32) (select |c_#length| |c_entry_point_~#a19~0.base|)) (exists ((v_prenex_1 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_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|))) (= (_ bv1 1) (select |c_#valid| |c_entry_point_~#a19~0.base|)) (forall ((v_probe_unsafe_19_~a.base_BEFORE_CALL_6 (_ BitVec 32)) (v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv4 32))) (.cse1 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (exists ((v_ldv_malloc_~size_13 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_4| (_ BitVec 32))) (and (not (bvsle (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_4| v_ldv_malloc_~size_13) v_probe_unsafe_19_~a.base_BEFORE_CALL_6))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_4|) (_ bv0 1)))) (bvsle .cse1 (select |c_#length| v_probe_unsafe_19_~a.base_BEFORE_CALL_6)) (not (bvsle .cse0 .cse1))))) (= (_ bv0 32) |c_entry_point_~#a19~0.offset|)) is different from false [2019-11-20 02:14:41,550 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_prenex_1 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_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|))) (= |c_#valid| |c_old(#valid)|) (forall ((v_probe_unsafe_19_~a.base_BEFORE_CALL_6 (_ BitVec 32)) (v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv4 32))) (.cse1 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (exists ((v_ldv_malloc_~size_13 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_4| (_ BitVec 32))) (and (not (bvsle (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_4| v_ldv_malloc_~size_13) v_probe_unsafe_19_~a.base_BEFORE_CALL_6))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_4|) (_ bv0 1)))) (bvsle .cse1 (select |c_#length| v_probe_unsafe_19_~a.base_BEFORE_CALL_6)) (not (bvsle .cse0 .cse1))))) (= |c_old(#length)| |c_#length|)) is different from false [2019-11-20 02:15:43,258 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_prenex_1 (_ BitVec 32))) (= (select |c_old(#valid)| v_prenex_1) (_ bv0 1))) (= (_ bv8 32) (select |c_#length| c_probe_unsafe_19_~a.base)) (= (bvadd (select |c_#valid| |c_probe_unsafe_19_#in~a.base|) (_ bv1 1)) (_ bv0 1)) (= c_probe_unsafe_19_~a.offset (_ bv0 32)) (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|))) (= (_ bv0 32) |c_probe_unsafe_19_#in~a.offset|) (= (_ bv8 32) (select |c_#length| |c_probe_unsafe_19_#in~a.base|)) (= |c_#valid| |c_old(#valid)|) (forall ((v_probe_unsafe_19_~a.base_BEFORE_CALL_6 (_ BitVec 32)) (v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv4 32))) (.cse1 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (exists ((v_ldv_malloc_~size_13 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_4| (_ BitVec 32))) (and (not (bvsle (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_4| v_ldv_malloc_~size_13) v_probe_unsafe_19_~a.base_BEFORE_CALL_6))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_4|) (_ bv0 1)))) (bvsle .cse1 (select |c_#length| v_probe_unsafe_19_~a.base_BEFORE_CALL_6)) (not (bvsle .cse0 .cse1))))) (= (bvadd (select |c_#valid| c_probe_unsafe_19_~a.base) (_ bv1 1)) (_ bv0 1)) (= |c_old(#length)| |c_#length|)) is different from false [2019-11-20 02:15:47,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:15:47,940 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2019-11-20 02:15:47,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 02:15:47,942 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-11-20 02:15:47,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:15:47,943 INFO L225 Difference]: With dead ends: 143 [2019-11-20 02:15:47,944 INFO L226 Difference]: Without dead ends: 143 [2019-11-20 02:15:47,944 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 27.0s TimeCoverageRelationStatistics Valid=69, Invalid=242, Unknown=11, NotChecked=140, Total=462 [2019-11-20 02:15:47,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-20 02:15:47,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2019-11-20 02:15:47,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-20 02:15:47,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 130 transitions. [2019-11-20 02:15:47,960 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 130 transitions. Word has length 15 [2019-11-20 02:15:47,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:15:47,960 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 130 transitions. [2019-11-20 02:15:47,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 02:15:47,960 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 130 transitions. [2019-11-20 02:15:47,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 02:15:47,962 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:15:47,962 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:15:48,166 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:15:48,167 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 02:15:48,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:15:48,168 INFO L82 PathProgramCache]: Analyzing trace with hash 250713103, now seen corresponding path program 1 times [2019-11-20 02:15:48,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:15:48,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1838832509] [2019-11-20 02:15:48,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 02:15:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:15:48,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-20 02:15:48,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:15:48,515 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 02:15:48,516 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:48,523 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:48,523 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 02:15:48,523 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 02:15:48,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 02:15:48,628 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:15:48,740 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 02:15:48,740 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1838832509] [2019-11-20 02:15:48,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:15:48,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2019-11-20 02:15:48,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889772220] [2019-11-20 02:15:48,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 02:15:48,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:15:48,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 02:15:48,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-20 02:15:48,742 INFO L87 Difference]: Start difference. First operand 107 states and 130 transitions. Second operand 9 states. [2019-11-20 02:15:49,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:15:49,447 INFO L93 Difference]: Finished difference Result 135 states and 160 transitions. [2019-11-20 02:15:49,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 02:15:49,447 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2019-11-20 02:15:49,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:15:49,449 INFO L225 Difference]: With dead ends: 135 [2019-11-20 02:15:49,449 INFO L226 Difference]: Without dead ends: 135 [2019-11-20 02:15:49,450 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2019-11-20 02:15:49,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-11-20 02:15:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2019-11-20 02:15:49,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-20 02:15:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 126 transitions. [2019-11-20 02:15:49,465 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 126 transitions. Word has length 26 [2019-11-20 02:15:49,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:15:49,466 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 126 transitions. [2019-11-20 02:15:49,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 02:15:49,466 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 126 transitions. [2019-11-20 02:15:49,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 02:15:49,467 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:15:49,468 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] [2019-11-20 02:15:49,672 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:15:49,672 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 02:15:49,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:15:49,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1256838705, now seen corresponding path program 1 times [2019-11-20 02:15:49,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:15:49,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [45851141] [2019-11-20 02:15:49,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 02:15:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:15:49,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-20 02:15:49,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:15:50,054 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 02:15:50,054 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:15:50,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:15:50,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:15:50,467 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 16 treesize of output 12 [2019-11-20 02:15:50,468 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 02:15:50,482 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 12 treesize of output 10 [2019-11-20 02:15:50,483 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 02:15:50,498 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 14 treesize of output 12 [2019-11-20 02:15:50,499 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 02:15:50,592 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:50,593 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2019-11-20 02:15:50,593 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:43, output treesize:35 [2019-11-20 02:15:51,084 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 02:15:51,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [45851141] [2019-11-20 02:15:51,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:15:51,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2019-11-20 02:15:51,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539371863] [2019-11-20 02:15:51,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-20 02:15:51,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:15:51,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 02:15:51,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2019-11-20 02:15:51,087 INFO L87 Difference]: Start difference. First operand 105 states and 126 transitions. Second operand 16 states. [2019-11-20 02:15:53,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:15:53,274 INFO L93 Difference]: Finished difference Result 124 states and 146 transitions. [2019-11-20 02:15:53,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 02:15:53,275 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 26 [2019-11-20 02:15:53,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:15:53,277 INFO L225 Difference]: With dead ends: 124 [2019-11-20 02:15:53,277 INFO L226 Difference]: Without dead ends: 124 [2019-11-20 02:15:53,278 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2019-11-20 02:15:53,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-20 02:15:53,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 104. [2019-11-20 02:15:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-20 02:15:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 123 transitions. [2019-11-20 02:15:53,299 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 123 transitions. Word has length 26 [2019-11-20 02:15:53,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:15:53,300 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 123 transitions. [2019-11-20 02:15:53,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-20 02:15:53,300 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 123 transitions. [2019-11-20 02:15:53,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 02:15:53,302 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:15:53,302 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] [2019-11-20 02:15:53,505 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:15:53,506 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 02:15:53,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:15:53,506 INFO L82 PathProgramCache]: Analyzing trace with hash 250683313, now seen corresponding path program 2 times [2019-11-20 02:15:53,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:15:53,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [490346278] [2019-11-20 02:15:53,507 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 02:15:53,804 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 02:15:53,804 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 02:15:53,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 02:15:53,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:15:53,848 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 13 treesize of output 9 [2019-11-20 02:15:53,848 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:53,859 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:53,863 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 13 treesize of output 9 [2019-11-20 02:15:53,863 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:53,880 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:53,881 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 02:15:53,881 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:19 [2019-11-20 02:15:53,928 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 7 [2019-11-20 02:15:53,928 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:53,939 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:53,946 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 7 [2019-11-20 02:15:53,946 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:53,952 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:53,952 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 02:15:53,952 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:7 [2019-11-20 02:15:53,968 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 02:15:53,968 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:15:54,011 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 02:15:54,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [490346278] [2019-11-20 02:15:54,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 02:15:54,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2019-11-20 02:15:54,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764505275] [2019-11-20 02:15:54,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 02:15:54,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:15:54,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 02:15:54,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 02:15:54,013 INFO L87 Difference]: Start difference. First operand 104 states and 123 transitions. Second operand 6 states. [2019-11-20 02:15:54,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:15:54,156 INFO L93 Difference]: Finished difference Result 103 states and 117 transitions. [2019-11-20 02:15:54,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 02:15:54,157 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-11-20 02:15:54,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:15:54,158 INFO L225 Difference]: With dead ends: 103 [2019-11-20 02:15:54,158 INFO L226 Difference]: Without dead ends: 103 [2019-11-20 02:15:54,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 02:15:54,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-20 02:15:54,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2019-11-20 02:15:54,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-20 02:15:54,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2019-11-20 02:15:54,166 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 26 [2019-11-20 02:15:54,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:15:54,166 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2019-11-20 02:15:54,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 02:15:54,167 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2019-11-20 02:15:54,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 02:15:54,168 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:15:54,168 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:15:54,368 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:15:54,369 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 02:15:54,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:15:54,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1256868496, now seen corresponding path program 1 times [2019-11-20 02:15:54,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:15:54,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [261732622] [2019-11-20 02:15:54,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 02:15:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:15:54,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-20 02:15:54,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:15:54,666 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 02:15:54,666 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:54,708 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:54,716 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 02:15:54,716 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:54,726 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:54,727 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 02:15:54,727 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 02:15:56,930 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:56,931 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 02:15:56,932 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:56,951 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:56,954 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 02:15:56,955 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:56,967 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:56,968 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 02:15:56,968 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2019-11-20 02:15:57,104 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 02:15:57,105 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 02:15:57,106 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:57,120 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:57,130 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:57,131 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 02:15:57,131 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:15:57,142 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:15:57,143 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 02:15:57,143 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:11 [2019-11-20 02:15:57,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 02:15:57,172 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:15:57,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:15:58,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:15:58,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:15:58,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:15:58,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:15:58,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:15:58,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:15:58,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:15:58,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:15:58,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:16:01,498 WARN L191 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-20 02:16:01,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:16:04,198 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:16:04,230 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:16:04,230 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2019-11-20 02:16:04,231 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:16:04,251 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:16:04,252 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-11-20 02:16:04,252 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 02:16:04,267 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:16:04,268 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2019-11-20 02:16:04,268 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 02:16:04,309 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:16:04,310 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2019-11-20 02:16:04,310 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:58, output treesize:23 [2019-11-20 02:16:04,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:16:06,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:16:06,816 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:16:06,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:16:06,818 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:16:06,820 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:16:06,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:16:06,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 02:16:06,854 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-11-20 02:16:06,860 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 02:16:11,585 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:16:18,961 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-11-20 02:16:23,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 2 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 02:16:23,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [261732622] [2019-11-20 02:16:23,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 02:16:23,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 20 [2019-11-20 02:16:23,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734256892] [2019-11-20 02:16:23,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 02:16:23,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:16:23,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 02:16:23,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=362, Unknown=5, NotChecked=0, Total=420 [2019-11-20 02:16:23,469 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 11 states. [2019-11-20 02:16:50,828 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-20 02:17:38,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:17:38,275 INFO L93 Difference]: Finished difference Result 123 states and 137 transitions. [2019-11-20 02:17:38,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-20 02:17:38,276 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2019-11-20 02:17:38,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:17:38,278 INFO L225 Difference]: With dead ends: 123 [2019-11-20 02:17:38,278 INFO L226 Difference]: Without dead ends: 123 [2019-11-20 02:17:38,280 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=134, Invalid=791, Unknown=5, NotChecked=0, Total=930 [2019-11-20 02:17:38,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-11-20 02:17:38,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 94. [2019-11-20 02:17:38,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-20 02:17:38,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 104 transitions. [2019-11-20 02:17:38,285 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 104 transitions. Word has length 26 [2019-11-20 02:17:38,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:17:38,285 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 104 transitions. [2019-11-20 02:17:38,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 02:17:38,285 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 104 transitions. [2019-11-20 02:17:38,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 02:17:38,286 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:17:38,286 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:17:38,487 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:17:38,487 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 02:17:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:17:38,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1996936919, now seen corresponding path program 1 times [2019-11-20 02:17:38,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:17:38,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [762792610] [2019-11-20 02:17:38,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 02:17:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:17:38,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 02:17:38,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:17:38,748 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 02:17:38,748 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:17:38,817 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 02:17:38,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [762792610] [2019-11-20 02:17:38,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:17:38,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-20 02:17:38,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322146313] [2019-11-20 02:17:38,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 02:17:38,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 02:17:38,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 02:17:38,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-20 02:17:38,819 INFO L87 Difference]: Start difference. First operand 94 states and 104 transitions. Second operand 10 states. [2019-11-20 02:17:38,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:17:38,908 INFO L93 Difference]: Finished difference Result 118 states and 128 transitions. [2019-11-20 02:17:38,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 02:17:38,909 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2019-11-20 02:17:38,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:17:38,911 INFO L225 Difference]: With dead ends: 118 [2019-11-20 02:17:38,911 INFO L226 Difference]: Without dead ends: 118 [2019-11-20 02:17:38,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-20 02:17:38,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-11-20 02:17:38,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 103. [2019-11-20 02:17:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-20 02:17:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2019-11-20 02:17:38,918 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 26 [2019-11-20 02:17:38,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:17:38,919 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2019-11-20 02:17:38,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 02:17:38,919 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2019-11-20 02:17:38,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 02:17:38,921 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:17:38,921 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:17:39,124 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:17:39,125 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 02:17:39,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:17:39,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1774875126, now seen corresponding path program 1 times [2019-11-20 02:17:39,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 02:17:39,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2008856440] [2019-11-20 02:17:39,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2475be65-8f70-4069-99b2-4b201469c503/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 02:17:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:17:39,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 02:17:39,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:17:39,534 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 02:17:39,535 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 02:17:39,535 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 02:17:39,563 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 02:17:39,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:17:39,564 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 02:17:39,565 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-20 02:17:39,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:17:39,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:17:39,586 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:17:39,592 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:17:45,762 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 02:17:45,762 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 02:17:50,051 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 02:17:50,052 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 02:17:50,057 INFO L168 Benchmark]: Toolchain (without parser) took 265661.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.0 MB). Free memory was 946.0 MB in the beginning and 915.6 MB in the end (delta: 30.5 MB). Peak memory consumption was 236.5 MB. Max. memory is 11.5 GB. [2019-11-20 02:17:50,058 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:17:50,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -201.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:17:50,059 INFO L168 Benchmark]: Boogie Preprocessor took 132.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 02:17:50,060 INFO L168 Benchmark]: RCFGBuilder took 1796.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:17:50,061 INFO L168 Benchmark]: TraceAbstraction took 262941.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 19.4 MB). Free memory was 1.0 GB in the beginning and 915.6 MB in the end (delta: 106.6 MB). Peak memory consumption was 126.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:17:50,064 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 784.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -201.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 132.77 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 1796.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 262941.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 19.4 MB). Free memory was 1.0 GB in the beginning and 915.6 MB in the end (delta: 106.6 MB). Peak memory consumption was 126.0 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...