./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 64bit --witnessprinter.graph.data.programhash 66d2e51687b673901e2b8c50fb19ced215d87d97 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-264dba8 [2019-11-21 11:43:03,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 11:43:03,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 11:43:03,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 11:43:03,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 11:43:03,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 11:43:03,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 11:43:03,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 11:43:03,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 11:43:03,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 11:43:03,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 11:43:03,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 11:43:03,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 11:43:03,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 11:43:03,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 11:43:03,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 11:43:03,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 11:43:03,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 11:43:03,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 11:43:03,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 11:43:03,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 11:43:03,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 11:43:03,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 11:43:03,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 11:43:03,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 11:43:03,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 11:43:03,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 11:43:03,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 11:43:03,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 11:43:03,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 11:43:03,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 11:43:03,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 11:43:03,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 11:43:03,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 11:43:03,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 11:43:03,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 11:43:03,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 11:43:03,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 11:43:03,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 11:43:03,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 11:43:03,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 11:43:03,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 11:43:03,411 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 11:43:03,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 11:43:03,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 11:43:03,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 11:43:03,415 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 11:43:03,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 11:43:03,417 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 11:43:03,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 11:43:03,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 11:43:03,417 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 11:43:03,418 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 11:43:03,419 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 11:43:03,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 11:43:03,419 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 11:43:03,419 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 11:43:03,420 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 11:43:03,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 11:43:03,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 11:43:03,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 11:43:03,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 11:43:03,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:43:03,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 11:43:03,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 11:43:03,421 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 11:43:03,422 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 11:43:03,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 11:43:03,423 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66d2e51687b673901e2b8c50fb19ced215d87d97 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 11:43:03,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 11:43:03,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 11:43:03,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 11:43:03,768 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 11:43:03,769 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 11:43:03,769 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2019-11-21 11:43:03,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6278da0e0/3aaa2709c69748fbbb19674b9e64c9f3/FLAG654809d83 [2019-11-21 11:43:04,393 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 11:43:04,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2019-11-21 11:43:04,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6278da0e0/3aaa2709c69748fbbb19674b9e64c9f3/FLAG654809d83 [2019-11-21 11:43:04,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6278da0e0/3aaa2709c69748fbbb19674b9e64c9f3 [2019-11-21 11:43:04,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 11:43:04,667 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 11:43:04,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 11:43:04,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 11:43:04,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 11:43:04,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:43:04" (1/1) ... [2019-11-21 11:43:04,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11786997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:04, skipping insertion in model container [2019-11-21 11:43:04,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:43:04" (1/1) ... [2019-11-21 11:43:04,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 11:43:04,754 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:43:05,182 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:43:05,182 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 11:43:05,183 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:43:05,194 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:43:05,195 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 11:43:05,195 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:43:05,197 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:43:05,198 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 11:43:05,198 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:43:05,201 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:43:05,201 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 11:43:05,201 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:43:05,228 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:43:05,229 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 11:43:05,229 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:43:05,246 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:43:05,247 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [766] [2019-11-21 11:43:05,248 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:43:05,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:43:05,301 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 11:43:05,317 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:43:05,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:43:05,411 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 11:43:05,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:43:05,589 INFO L205 MainTranslator]: Completed translation [2019-11-21 11:43:05,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:05 WrapperNode [2019-11-21 11:43:05,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 11:43:05,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 11:43:05,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 11:43:05,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 11:43:05,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:05" (1/1) ... [2019-11-21 11:43:05,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:05" (1/1) ... [2019-11-21 11:43:05,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:05" (1/1) ... [2019-11-21 11:43:05,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:05" (1/1) ... [2019-11-21 11:43:05,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:05" (1/1) ... [2019-11-21 11:43:05,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:05" (1/1) ... [2019-11-21 11:43:05,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:05" (1/1) ... [2019-11-21 11:43:05,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 11:43:05,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 11:43:05,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 11:43:05,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 11:43:05,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:43:05,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 11:43:05,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 11:43:05,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:43:05,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 11:43:05,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 11:43:05,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 11:43:05,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 11:43:05,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 11:43:05,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 11:43:05,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 11:43:05,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 11:43:05,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 11:43:05,810 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:43:05,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 11:43:05,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 11:43:05,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 11:43:05,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 11:43:05,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 11:43:05,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 11:43:05,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 11:43:05,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 11:43:05,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 11:43:05,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 11:43:05,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 11:43:05,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 11:43:05,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 11:43:05,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 11:43:05,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 11:43:05,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 11:43:05,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 11:43:05,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 11:43:05,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 11:43:05,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 11:43:05,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 11:43:05,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 11:43:05,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 11:43:05,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 11:43:05,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 11:43:05,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 11:43:05,817 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 11:43:05,817 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 11:43:05,817 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2019-11-21 11:43:05,817 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2019-11-21 11:43:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure probe2_6 [2019-11-21 11:43:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2019-11-21 11:43:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 11:43:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 11:43:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 11:43:05,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 11:43:05,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 11:43:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 11:43:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 11:43:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 11:43:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 11:43:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 11:43:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 11:43:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 11:43:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 11:43:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 11:43:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 11:43:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 11:43:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 11:43:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 11:43:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 11:43:05,823 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 11:43:05,823 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 11:43:05,823 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 11:43:05,823 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 11:43:05,824 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 11:43:05,824 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 11:43:05,824 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 11:43:05,824 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 11:43:05,824 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 11:43:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 11:43:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 11:43:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 11:43:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 11:43:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 11:43:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 11:43:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 11:43:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 11:43:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 11:43:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 11:43:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 11:43:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 11:43:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 11:43:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 11:43:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 11:43:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 11:43:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 11:43:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 11:43:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 11:43:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 11:43:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 11:43:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 11:43:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 11:43:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 11:43:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 11:43:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 11:43:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 11:43:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 11:43:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 11:43:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 11:43:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 11:43:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 11:43:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 11:43:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 11:43:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 11:43:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 11:43:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 11:43:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 11:43:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 11:43:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 11:43:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 11:43:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 11:43:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 11:43:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 11:43:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 11:43:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 11:43:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 11:43:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 11:43:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 11:43:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 11:43:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 11:43:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 11:43:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 11:43:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 11:43:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 11:43:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 11:43:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 11:43:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 11:43:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 11:43:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 11:43:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 11:43:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 11:43:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 11:43:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 11:43:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 11:43:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 11:43:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 11:43:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 11:43:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 11:43:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 11:43:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 11:43:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 11:43:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 11:43:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 11:43:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 11:43:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 11:43:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 11:43:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 11:43:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 11:43:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 11:43:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 11:43:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 11:43:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 11:43:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 11:43:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 11:43:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 11:43:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 11:43:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 11:43:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 11:43:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 11:43:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 11:43:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 11:43:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 11:43:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 11:43:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 11:43:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:43:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 11:43:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 11:43:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 11:43:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 11:43:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 11:43:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 11:43:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 11:43:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 11:43:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 11:43:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 11:43:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 11:43:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 11:43:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 11:43:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 11:43:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 11:43:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 11:43:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 11:43:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 11:43:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 11:43:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 11:43:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 11:43:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:43:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 11:43:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 11:43:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 11:43:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 11:43:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 11:43:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 11:43:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 11:43:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 11:43:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 11:43:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 11:43:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 11:43:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 11:43:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 11:43:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 11:43:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2019-11-21 11:43:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2019-11-21 11:43:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure probe2_6 [2019-11-21 11:43:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_6 [2019-11-21 11:43:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 11:43:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 11:43:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 11:43:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 11:43:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 11:43:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 11:43:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 11:43:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 11:43:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 11:43:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 11:43:06,493 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:43:06,907 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:43:07,466 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 11:43:07,467 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 11:43:07,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:43:07 BoogieIcfgContainer [2019-11-21 11:43:07,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 11:43:07,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 11:43:07,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 11:43:07,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 11:43:07,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:43:04" (1/3) ... [2019-11-21 11:43:07,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592257f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:43:07, skipping insertion in model container [2019-11-21 11:43:07,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:43:05" (2/3) ... [2019-11-21 11:43:07,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592257f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:43:07, skipping insertion in model container [2019-11-21 11:43:07,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:43:07" (3/3) ... [2019-11-21 11:43:07,479 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test6_1.i [2019-11-21 11:43:07,489 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 11:43:07,499 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 83 error locations. [2019-11-21 11:43:07,511 INFO L249 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2019-11-21 11:43:07,534 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 11:43:07,534 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 11:43:07,535 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 11:43:07,538 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 11:43:07,539 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 11:43:07,540 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 11:43:07,540 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 11:43:07,540 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 11:43:07,569 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2019-11-21 11:43:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:43:07,581 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:07,582 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] [2019-11-21 11:43:07,583 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:43:07,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:07,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1056608978, now seen corresponding path program 1 times [2019-11-21 11:43:07,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:07,610 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [154085933] [2019-11-21 11:43:07,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:43:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:07,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:43:07,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:08,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:08,045 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:08,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:08,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [154085933] [2019-11-21 11:43:08,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:43:08,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:43:08,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594906881] [2019-11-21 11:43:08,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:43:08,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:43:08,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:43:08,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:43:08,245 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 5 states. [2019-11-21 11:43:08,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:43:08,390 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2019-11-21 11:43:08,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:43:08,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 11:43:08,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:43:08,415 INFO L225 Difference]: With dead ends: 85 [2019-11-21 11:43:08,415 INFO L226 Difference]: Without dead ends: 82 [2019-11-21 11:43:08,418 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:43:08,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-21 11:43:08,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 65. [2019-11-21 11:43:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-21 11:43:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2019-11-21 11:43:08,528 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 20 [2019-11-21 11:43:08,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:43:08,529 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2019-11-21 11:43:08,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:43:08,529 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2019-11-21 11:43:08,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:43:08,531 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:08,531 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] [2019-11-21 11:43:08,738 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:08,739 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:43:08,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:08,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1253122483, now seen corresponding path program 1 times [2019-11-21 11:43:08,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:08,741 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [252341337] [2019-11-21 11:43:08,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:43:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:09,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 11:43:09,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:09,138 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 11:43:09,138 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 11:43:09,139 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:09,167 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 11:43:09,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:09,172 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. [2019-11-21 11:43:09,172 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 11:43:09,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:09,199 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 5 treesize of output 3 [2019-11-21 11:43:09,200 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:09,202 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:09,204 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:43:09,204 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-21 11:43:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:09,218 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:09,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:09,311 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 6 treesize of output 4 [2019-11-21 11:43:09,312 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:09,319 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:09,319 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:43:09,320 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:12 [2019-11-21 11:43:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:09,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [252341337] [2019-11-21 11:43:09,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:43:09,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-21 11:43:09,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918401238] [2019-11-21 11:43:09,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:43:09,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:43:09,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:43:09,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:43:09,357 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 5 states. [2019-11-21 11:43:09,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:43:09,593 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-21 11:43:09,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:43:09,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 11:43:09,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:43:09,597 INFO L225 Difference]: With dead ends: 108 [2019-11-21 11:43:09,597 INFO L226 Difference]: Without dead ends: 105 [2019-11-21 11:43:09,599 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:43:09,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-11-21 11:43:09,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 83. [2019-11-21 11:43:09,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-21 11:43:09,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 96 transitions. [2019-11-21 11:43:09,624 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 96 transitions. Word has length 20 [2019-11-21 11:43:09,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:43:09,625 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 96 transitions. [2019-11-21 11:43:09,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:43:09,625 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 96 transitions. [2019-11-21 11:43:09,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:43:09,629 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:09,630 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] [2019-11-21 11:43:09,834 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:09,835 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:43:09,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:09,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1253122482, now seen corresponding path program 1 times [2019-11-21 11:43:09,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:09,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2094817164] [2019-11-21 11:43:09,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:43:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:10,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 11:43:10,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:10,192 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:10,193 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-21 11:43:10,193 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:10,224 INFO L567 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2019-11-21 11:43:10,225 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:43:10,226 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2019-11-21 11:43:10,247 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 5 treesize of output 3 [2019-11-21 11:43:10,248 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:10,253 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:10,254 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:43:10,254 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:7 [2019-11-21 11:43:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:10,278 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:10,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-21 11:43:10,436 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 8 treesize of output 6 [2019-11-21 11:43:10,436 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:43:10,463 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:10,464 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:43:10,464 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:32 [2019-11-21 11:43:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:10,538 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2094817164] [2019-11-21 11:43:10,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:43:10,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-21 11:43:10,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816693696] [2019-11-21 11:43:10,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:43:10,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:43:10,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:43:10,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:43:10,543 INFO L87 Difference]: Start difference. First operand 83 states and 96 transitions. Second operand 6 states. [2019-11-21 11:43:10,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:43:10,829 INFO L93 Difference]: Finished difference Result 120 states and 128 transitions. [2019-11-21 11:43:10,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:43:10,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-21 11:43:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:43:10,833 INFO L225 Difference]: With dead ends: 120 [2019-11-21 11:43:10,833 INFO L226 Difference]: Without dead ends: 119 [2019-11-21 11:43:10,834 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:43:10,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-11-21 11:43:10,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 104. [2019-11-21 11:43:10,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-21 11:43:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2019-11-21 11:43:10,854 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 20 [2019-11-21 11:43:10,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:43:10,854 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2019-11-21 11:43:10,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:43:10,854 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2019-11-21 11:43:10,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 11:43:10,855 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:10,855 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] [2019-11-21 11:43:11,056 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:11,056 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:43:11,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:11,057 INFO L82 PathProgramCache]: Analyzing trace with hash 759771907, now seen corresponding path program 1 times [2019-11-21 11:43:11,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:11,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [98964456] [2019-11-21 11:43:11,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:43:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:11,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:43:11,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:11,297 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:11,337 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [98964456] [2019-11-21 11:43:11,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:43:11,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:43:11,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080483059] [2019-11-21 11:43:11,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:43:11,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:43:11,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:43:11,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:43:11,340 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand 5 states. [2019-11-21 11:43:11,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:43:11,373 INFO L93 Difference]: Finished difference Result 103 states and 122 transitions. [2019-11-21 11:43:11,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:43:11,377 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 11:43:11,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:43:11,378 INFO L225 Difference]: With dead ends: 103 [2019-11-21 11:43:11,378 INFO L226 Difference]: Without dead ends: 103 [2019-11-21 11:43:11,379 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:43:11,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-21 11:43:11,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2019-11-21 11:43:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 11:43:11,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2019-11-21 11:43:11,390 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 22 [2019-11-21 11:43:11,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:43:11,390 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2019-11-21 11:43:11,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:43:11,391 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2019-11-21 11:43:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 11:43:11,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:11,392 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] [2019-11-21 11:43:11,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:11,595 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:43:11,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:11,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1659853236, now seen corresponding path program 1 times [2019-11-21 11:43:11,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:11,597 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [865187474] [2019-11-21 11:43:11,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:43:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:11,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:43:11,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:11,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:11,864 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:11,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:11,941 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [865187474] [2019-11-21 11:43:11,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:43:11,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-21 11:43:11,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896764463] [2019-11-21 11:43:11,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 11:43:11,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:43:11,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 11:43:11,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 11:43:11,942 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand 10 states. [2019-11-21 11:43:12,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:43:12,020 INFO L93 Difference]: Finished difference Result 121 states and 137 transitions. [2019-11-21 11:43:12,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 11:43:12,021 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-11-21 11:43:12,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:43:12,023 INFO L225 Difference]: With dead ends: 121 [2019-11-21 11:43:12,023 INFO L226 Difference]: Without dead ends: 113 [2019-11-21 11:43:12,024 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-21 11:43:12,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-11-21 11:43:12,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2019-11-21 11:43:12,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-21 11:43:12,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2019-11-21 11:43:12,034 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 22 [2019-11-21 11:43:12,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:43:12,034 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2019-11-21 11:43:12,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 11:43:12,034 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2019-11-21 11:43:12,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 11:43:12,035 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:12,035 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] [2019-11-21 11:43:12,243 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:12,244 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:43:12,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:12,249 INFO L82 PathProgramCache]: Analyzing trace with hash 2078092995, now seen corresponding path program 1 times [2019-11-21 11:43:12,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:12,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1549591625] [2019-11-21 11:43:12,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:43:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:12,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:43:12,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:12,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:12,577 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:12,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:12,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1549591625] [2019-11-21 11:43:12,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:43:12,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-21 11:43:12,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897932060] [2019-11-21 11:43:12,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 11:43:12,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:43:12,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 11:43:12,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:43:12,656 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 9 states. [2019-11-21 11:43:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:43:12,832 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2019-11-21 11:43:12,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:43:12,833 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2019-11-21 11:43:12,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:43:12,834 INFO L225 Difference]: With dead ends: 106 [2019-11-21 11:43:12,834 INFO L226 Difference]: Without dead ends: 106 [2019-11-21 11:43:12,834 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:43:12,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-21 11:43:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-11-21 11:43:12,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-21 11:43:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2019-11-21 11:43:12,843 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 23 [2019-11-21 11:43:12,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:43:12,843 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2019-11-21 11:43:12,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 11:43:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2019-11-21 11:43:12,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 11:43:12,845 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:12,845 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] [2019-11-21 11:43:13,048 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:13,049 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:43:13,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:13,050 INFO L82 PathProgramCache]: Analyzing trace with hash -3626235, now seen corresponding path program 1 times [2019-11-21 11:43:13,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:13,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1479227812] [2019-11-21 11:43:13,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:43:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:13,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:43:13,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:13,345 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 [2019-11-21 11:43:13,346 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:13,348 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:13,348 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:43:13,349 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:43:13,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:13,390 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:13,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1479227812] [2019-11-21 11:43:13,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:43:13,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2019-11-21 11:43:13,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99201326] [2019-11-21 11:43:13,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:43:13,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:43:13,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:43:13,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:43:13,444 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand 6 states. [2019-11-21 11:43:13,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:43:13,650 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2019-11-21 11:43:13,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:43:13,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-21 11:43:13,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:43:13,653 INFO L225 Difference]: With dead ends: 109 [2019-11-21 11:43:13,653 INFO L226 Difference]: Without dead ends: 109 [2019-11-21 11:43:13,654 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:43:13,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-21 11:43:13,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2019-11-21 11:43:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-21 11:43:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2019-11-21 11:43:13,661 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 24 [2019-11-21 11:43:13,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:43:13,662 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2019-11-21 11:43:13,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:43:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2019-11-21 11:43:13,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 11:43:13,663 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:13,663 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] [2019-11-21 11:43:13,866 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:13,867 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:43:13,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:13,868 INFO L82 PathProgramCache]: Analyzing trace with hash -509184860, now seen corresponding path program 1 times [2019-11-21 11:43:13,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:13,869 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1457166356] [2019-11-21 11:43:13,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:43:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:14,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:43:14,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:14,185 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:14,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:14,208 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1457166356] [2019-11-21 11:43:14,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:43:14,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 11:43:14,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241735997] [2019-11-21 11:43:14,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:43:14,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:43:14,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:43:14,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:43:14,211 INFO L87 Difference]: Start difference. First operand 106 states and 119 transitions. Second operand 6 states. [2019-11-21 11:43:14,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:43:14,277 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2019-11-21 11:43:14,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:43:14,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-21 11:43:14,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:43:14,280 INFO L225 Difference]: With dead ends: 101 [2019-11-21 11:43:14,280 INFO L226 Difference]: Without dead ends: 100 [2019-11-21 11:43:14,281 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:43:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-11-21 11:43:14,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2019-11-21 11:43:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-21 11:43:14,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2019-11-21 11:43:14,288 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 24 [2019-11-21 11:43:14,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:43:14,288 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2019-11-21 11:43:14,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:43:14,289 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2019-11-21 11:43:14,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 11:43:14,290 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:14,290 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, 1] [2019-11-21 11:43:14,503 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:14,504 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:43:14,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:14,505 INFO L82 PathProgramCache]: Analyzing trace with hash 561600154, now seen corresponding path program 1 times [2019-11-21 11:43:14,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:14,506 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1932205508] [2019-11-21 11:43:14,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:43:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:14,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 11:43:14,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:14,843 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 11:43:14,843 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 11:43:14,844 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:14,870 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 11:43:14,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:14,873 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. [2019-11-21 11:43:14,873 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 11:43:14,873 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:14,976 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:14,976 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-21 11:43:14,977 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:14,997 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 11:43:14,998 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:43:14,998 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 11:43:15,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:15,186 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:19,616 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1932205508] [2019-11-21 11:43:19,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:43:19,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2019-11-21 11:43:19,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404127478] [2019-11-21 11:43:19,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 11:43:19,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:43:19,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 11:43:19,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=146, Unknown=1, NotChecked=0, Total=182 [2019-11-21 11:43:19,618 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 14 states. [2019-11-21 11:43:26,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:43:26,609 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2019-11-21 11:43:26,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 11:43:26,610 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2019-11-21 11:43:26,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:43:26,611 INFO L225 Difference]: With dead ends: 103 [2019-11-21 11:43:26,611 INFO L226 Difference]: Without dead ends: 103 [2019-11-21 11:43:26,612 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=98, Invalid=281, Unknown=1, NotChecked=0, Total=380 [2019-11-21 11:43:26,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-21 11:43:26,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2019-11-21 11:43:26,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-21 11:43:26,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2019-11-21 11:43:26,619 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 28 [2019-11-21 11:43:26,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:43:26,620 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2019-11-21 11:43:26,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 11:43:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2019-11-21 11:43:26,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 11:43:26,621 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:26,621 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, 1] [2019-11-21 11:43:26,822 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:26,823 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:43:26,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:26,824 INFO L82 PathProgramCache]: Analyzing trace with hash 561600155, now seen corresponding path program 1 times [2019-11-21 11:43:26,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:26,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2057459140] [2019-11-21 11:43:26,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:27,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-21 11:43:27,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:27,210 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 11:43:27,211 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 11:43:27,211 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:27,272 INFO L567 ElimStorePlain]: treesize reduction 10, result has 77.8 percent of original size [2019-11-21 11:43:27,300 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:27,300 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-21 11:43:27,301 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:27,371 INFO L567 ElimStorePlain]: treesize reduction 10, result has 80.0 percent of original size [2019-11-21 11:43:27,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:27,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:27,374 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:43:27,375 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:40 [2019-11-21 11:43:27,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:27,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:27,399 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:27,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:27,426 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:27,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:27,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:27,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:27,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:27,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:27,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:27,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:29,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:29,801 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:29,802 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 30 treesize of output 34 [2019-11-21 11:43:29,802 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:29,854 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:29,855 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 50 [2019-11-21 11:43:29,855 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:29,863 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 11:43:29,864 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2019-11-21 11:43:29,865 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:29,912 INFO L567 ElimStorePlain]: treesize reduction 27, result has 41.3 percent of original size [2019-11-21 11:43:29,917 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 [2019-11-21 11:43:29,918 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:29,930 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:29,931 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:43:29,931 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:97, output treesize:11 [2019-11-21 11:43:30,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:30,061 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:30,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:30,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:43:30,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:30,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:30,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:30,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:30,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:30,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:30,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:30,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:33,139 WARN L192 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-21 11:43:33,144 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:43:34,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:43:34,109 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2057459140] [2019-11-21 11:43:34,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:43:34,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2019-11-21 11:43:34,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647993674] [2019-11-21 11:43:34,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-21 11:43:34,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:43:34,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-21 11:43:34,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=170, Unknown=2, NotChecked=0, Total=210 [2019-11-21 11:43:34,111 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand 15 states. [2019-11-21 11:43:44,711 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-11-21 11:43:57,288 WARN L192 SmtUtils]: Spent 10.26 s on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-11-21 11:44:02,750 WARN L192 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-11-21 11:44:02,938 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-11-21 11:44:11,367 WARN L192 SmtUtils]: Spent 6.31 s on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2019-11-21 11:44:23,956 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-11-21 11:44:39,953 WARN L192 SmtUtils]: Spent 9.23 s on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-11-21 11:45:16,843 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_probe2_6_~a.base_BEFORE_CALL_8 (_ BitVec 32))) (= (bvadd (select |c_#length| v_probe2_6_~a.base_BEFORE_CALL_8) (_ bv4294967288 32)) (_ 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|))) (or (bvsle (_ bv0 32) |c_~#a6~0.offset|) (forall ((v_prenex_6 (_ BitVec 32))) (not (= (select |c_#valid| v_prenex_6) (_ bv0 1))))) (forall ((v_probe2_6_~a.offset_BEFORE_CALL_6 (_ BitVec 32)) (v_probe2_6_~a.base_BEFORE_CALL_12 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe2_6_~a.offset_BEFORE_CALL_6 (_ bv8 32)))) (or (not (bvsle (_ bv0 32) v_probe2_6_~a.offset_BEFORE_CALL_6)) (exists ((v_prenex_4 (_ BitVec 32)) (v_ldv_malloc_~size_47 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_4)) (not (bvsle (bvadd v_probe2_6_~a.offset_BEFORE_CALL_6 (_ bv8 32)) (select (store |c_old(#length)| v_prenex_4 v_ldv_malloc_~size_47) v_probe2_6_~a.base_BEFORE_CALL_12))))) (bvsle .cse0 (select |c_#length| v_probe2_6_~a.base_BEFORE_CALL_12)) (not (bvsle v_probe2_6_~a.offset_BEFORE_CALL_6 .cse0))))) (or (forall ((v_prenex_5 (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| v_prenex_5)))) (bvsle |c_~#a6~0.offset| (bvadd |c_~#a6~0.offset| (_ bv8 32)))) (forall ((|v_ldv_malloc_#t~malloc12.base_28| (_ BitVec 32)) (v_ldv_malloc_~size_47 (_ BitVec 32))) (or (bvsle (bvadd |c_~#a6~0.offset| (_ bv8 32)) (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_28| v_ldv_malloc_~size_47) |c_~#a6~0.base|)) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_28|) (_ bv0 1))))) (exists ((|v_ldv_malloc_#t~malloc12.base_28| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_28|) (_ bv0 1)))) is different from false [2019-11-21 11:45:35,838 WARN L192 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-11-21 11:46:16,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:46:16,209 INFO L93 Difference]: Finished difference Result 105 states and 111 transitions. [2019-11-21 11:46:16,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-21 11:46:16,211 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2019-11-21 11:46:16,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:46:16,212 INFO L225 Difference]: With dead ends: 105 [2019-11-21 11:46:16,212 INFO L226 Difference]: Without dead ends: 105 [2019-11-21 11:46:16,213 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 36 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 76.2s TimeCoverageRelationStatistics Valid=220, Invalid=582, Unknown=14, NotChecked=54, Total=870 [2019-11-21 11:46:16,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-11-21 11:46:16,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 96. [2019-11-21 11:46:16,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-11-21 11:46:16,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2019-11-21 11:46:16,218 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 28 [2019-11-21 11:46:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:46:16,218 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2019-11-21 11:46:16,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-21 11:46:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2019-11-21 11:46:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 11:46:16,220 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:46:16,220 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, 1, 1] [2019-11-21 11:46:16,423 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:46:16,424 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE, probe2_6Err1REQUIRES_VIOLATION, probe2_6Err0REQUIRES_VIOLATION]=== [2019-11-21 11:46:16,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:46:16,424 INFO L82 PathProgramCache]: Analyzing trace with hash -2026302042, now seen corresponding path program 1 times [2019-11-21 11:46:16,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:46:16,425 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2082214333] [2019-11-21 11:46:16,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:46:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:46:16,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 11:46:16,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:46:16,747 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 11:46:16,747 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 11:46:16,748 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:46:16,777 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 11:46:16,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:46:16,778 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. [2019-11-21 11:46:16,779 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 11:46:16,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:46:16,792 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 5 treesize of output 3 [2019-11-21 11:46:16,792 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:46:16,794 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:46:16,794 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:46:16,794 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-21 11:46:16,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:46:16,877 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 16 treesize of output 13 [2019-11-21 11:46:16,878 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:46:16,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:46:16,903 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 9 [2019-11-21 11:46:16,903 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:46:16,922 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:46:16,923 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-11-21 11:46:16,923 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:16 [2019-11-21 11:46:19,044 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:46:19,045 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 11:46:19,046 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:46:19,074 INFO L567 ElimStorePlain]: treesize reduction 18, result has 45.5 percent of original size [2019-11-21 11:46:19,075 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. [2019-11-21 11:46:19,076 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2019-11-21 11:46:19,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:46:19,101 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:46:25,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:46:25,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:46:25,422 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:46:25,424 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-11-21 11:46:25,630 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:46:25,631 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 11:46:25,639 INFO L168 Benchmark]: Toolchain (without parser) took 200973.06 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 256.9 MB). Free memory was 955.0 MB in the beginning and 1.0 GB in the end (delta: -68.3 MB). Peak memory consumption was 188.6 MB. Max. memory is 11.5 GB. [2019-11-21 11:46:25,640 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:46:25,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 923.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 955.0 MB in the beginning and 1.0 GB in the end (delta: -65.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-11-21 11:46:25,641 INFO L168 Benchmark]: Boogie Preprocessor took 145.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:46:25,641 INFO L168 Benchmark]: RCFGBuilder took 1731.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 903.1 MB in the end (delta: 110.3 MB). Peak memory consumption was 110.3 MB. Max. memory is 11.5 GB. [2019-11-21 11:46:25,642 INFO L168 Benchmark]: TraceAbstraction took 198167.44 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 175.6 MB). Free memory was 903.1 MB in the beginning and 1.0 GB in the end (delta: -120.2 MB). Peak memory consumption was 55.4 MB. Max. memory is 11.5 GB. [2019-11-21 11:46:25,644 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 923.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.3 MB). Free memory was 955.0 MB in the beginning and 1.0 GB in the end (delta: -65.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 145.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1731.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 903.1 MB in the end (delta: 110.3 MB). Peak memory consumption was 110.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 198167.44 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 175.6 MB). Free memory was 903.1 MB in the beginning and 1.0 GB in the end (delta: -120.2 MB). Peak memory consumption was 55.4 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...