./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.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_test3-2.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 c58b8bb1c431fc65db9a6b9db641f8c92b59fe24 --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 11:40:46,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 11:40:46,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 11:40:46,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 11:40:46,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 11:40:46,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 11:40:46,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 11:40:46,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 11:40:46,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 11:40:46,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 11:40:46,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 11:40:46,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 11:40:46,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 11:40:46,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 11:40:46,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 11:40:46,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 11:40:46,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 11:40:46,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 11:40:46,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 11:40:46,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 11:40:46,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 11:40:46,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 11:40:46,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 11:40:46,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 11:40:46,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 11:40:46,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 11:40:46,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 11:40:46,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 11:40:46,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 11:40:46,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 11:40:46,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 11:40:46,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 11:40:46,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 11:40:46,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 11:40:46,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 11:40:46,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 11:40:46,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 11:40:46,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 11:40:46,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 11:40:46,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 11:40:46,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 11:40:46,818 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 11:40:46,842 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 11:40:46,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 11:40:46,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 11:40:46,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 11:40:46,848 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 11:40:46,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 11:40:46,848 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 11:40:46,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 11:40:46,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 11:40:46,849 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 11:40:46,849 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 11:40:46,849 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 11:40:46,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 11:40:46,850 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 11:40:46,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 11:40:46,850 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 11:40:46,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 11:40:46,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 11:40:46,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 11:40:46,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 11:40:46,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:40:46,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 11:40:46,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 11:40:46,852 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 11:40:46,852 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 11:40:46,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 11:40:46,853 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 -> c58b8bb1c431fc65db9a6b9db641f8c92b59fe24 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 11:40:47,159 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 11:40:47,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 11:40:47,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 11:40:47,187 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 11:40:47,188 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 11:40:47,189 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2019-11-21 11:40:47,260 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78de0a09/f3c4dbd43c754724b36e2fd377f45497/FLAG67f4788c3 [2019-11-21 11:40:47,786 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 11:40:47,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2019-11-21 11:40:47,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78de0a09/f3c4dbd43c754724b36e2fd377f45497/FLAG67f4788c3 [2019-11-21 11:40:48,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78de0a09/f3c4dbd43c754724b36e2fd377f45497 [2019-11-21 11:40:48,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 11:40:48,110 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 11:40:48,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 11:40:48,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 11:40:48,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 11:40:48,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:40:48" (1/1) ... [2019-11-21 11:40:48,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112358cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48, skipping insertion in model container [2019-11-21 11:40:48,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:40:48" (1/1) ... [2019-11-21 11:40:48,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 11:40:48,177 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:40:48,603 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 11:40:48,603 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 11:40:48,604 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:40:48,616 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 11:40:48,617 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 11:40:48,617 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:40:48,620 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 11:40:48,621 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 11:40:48,621 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:40:48,624 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 11:40:48,625 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 11:40:48,626 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:40:48,669 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 11:40:48,669 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 11:40:48,670 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:40:48,687 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 11:40:48,687 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [759] [2019-11-21 11:40:48,688 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:40:48,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:40:48,722 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 11:40:48,743 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:40:48,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:40:48,840 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 11:40:48,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:40:48,980 INFO L205 MainTranslator]: Completed translation [2019-11-21 11:40:48,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48 WrapperNode [2019-11-21 11:40:48,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 11:40:48,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 11:40:48,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 11:40:48,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 11:40:48,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48" (1/1) ... [2019-11-21 11:40:48,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48" (1/1) ... [2019-11-21 11:40:49,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48" (1/1) ... [2019-11-21 11:40:49,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48" (1/1) ... [2019-11-21 11:40:49,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48" (1/1) ... [2019-11-21 11:40:49,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48" (1/1) ... [2019-11-21 11:40:49,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48" (1/1) ... [2019-11-21 11:40:49,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 11:40:49,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 11:40:49,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 11:40:49,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 11:40:49,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48" (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 11:40:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 11:40:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 11:40:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:40:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 11:40:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 11:40:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 11:40:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 11:40:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 11:40:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 11:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 11:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 11:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 11:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 11:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 11:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 11:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 11:40:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 11:40:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 11:40:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 11:40:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 11:40:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 11:40:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 11:40:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 11:40:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 11:40:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 11:40:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 11:40:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 11:40:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 11:40:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 11:40:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 11:40:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 11:40:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 11:40:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 11:40:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 11:40:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 11:40:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 11:40:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 11:40:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 11:40:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 11:40:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 11:40:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure h_safe [2019-11-21 11:40:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 11:40:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 11:40:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 11:40:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 11:40:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 11:40:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 11:40:49,145 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 11:40:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 11:40:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 11:40:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 11:40:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 11:40:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 11:40:49,149 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 11:40:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 11:40:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 11:40:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 11:40:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 11:40:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 11:40:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 11:40:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 11:40:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 11:40:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 11:40:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 11:40:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 11:40:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 11:40:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 11:40:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 11:40:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 11:40:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 11:40:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 11:40:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 11:40:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 11:40:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 11:40:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 11:40:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 11:40:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 11:40:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 11:40:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 11:40:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 11:40:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 11:40:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 11:40:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 11:40:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 11:40:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 11:40:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 11:40:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 11:40:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 11:40:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 11:40:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 11:40:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 11:40:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 11:40:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 11:40:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 11:40:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 11:40:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 11:40:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 11:40:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 11:40:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 11:40:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 11:40:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 11:40:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 11:40:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 11:40:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 11:40:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 11:40:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 11:40:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 11:40:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 11:40:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 11:40:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 11:40:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 11:40:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 11:40:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 11:40:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 11:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 11:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 11:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 11:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 11:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 11:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 11:40:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 11:40:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 11:40:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 11:40:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 11:40:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 11:40:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 11:40:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 11:40:49,174 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 11:40:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 11:40:49,175 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 11:40:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 11:40:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 11:40:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 11:40:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 11:40:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 11:40:49,176 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 11:40:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 11:40:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 11:40:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 11:40:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 11:40:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 11:40:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 11:40:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 11:40:49,177 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 11:40:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 11:40:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 11:40:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 11:40:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 11:40:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 11:40:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 11:40:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 11:40:49,178 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 11:40:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 11:40:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 11:40:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 11:40:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 11:40:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 11:40:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 11:40:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 11:40:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 11:40:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 11:40:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 11:40:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 11:40:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 11:40:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:40:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 11:40:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 11:40:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 11:40:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 11:40:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 11:40:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 11:40:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 11:40:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 11:40:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 11:40:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 11:40:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 11:40:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 11:40:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 11:40:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 11:40:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 11:40:49,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 11:40:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 11:40:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 11:40:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 11:40:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 11:40:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 11:40:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:40:49,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 11:40:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 11:40:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 11:40:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 11:40:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 11:40:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 11:40:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 11:40:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 11:40:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 11:40:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 11:40:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 11:40:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 11:40:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 11:40:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 11:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure h_safe [2019-11-21 11:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 11:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 11:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 11:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 11:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 11:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 11:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 11:40:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 11:40:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 11:40:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 11:40:49,860 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:40:50,239 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:40:50,564 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 11:40:50,565 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 11:40:50,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:40:50 BoogieIcfgContainer [2019-11-21 11:40:50,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 11:40:50,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 11:40:50,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 11:40:50,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 11:40:50,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:40:48" (1/3) ... [2019-11-21 11:40:50,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3205514e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:40:50, skipping insertion in model container [2019-11-21 11:40:50,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:40:48" (2/3) ... [2019-11-21 11:40:50,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3205514e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:40:50, skipping insertion in model container [2019-11-21 11:40:50,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:40:50" (3/3) ... [2019-11-21 11:40:50,575 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2019-11-21 11:40:50,586 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 11:40:50,598 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-21 11:40:50,611 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-21 11:40:50,635 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 11:40:50,635 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 11:40:50,635 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 11:40:50,635 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 11:40:50,636 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 11:40:50,636 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 11:40:50,636 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 11:40:50,636 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 11:40:50,658 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2019-11-21 11:40:50,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 11:40:50,673 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:40:50,674 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:40:50,676 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:40:50,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:40:50,684 INFO L82 PathProgramCache]: Analyzing trace with hash 362301239, now seen corresponding path program 1 times [2019-11-21 11:40:50,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:40:50,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1811323200] [2019-11-21 11:40:50,702 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 11:40:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:40:51,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:40:51,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:40:51,187 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 11:40:51,187 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:40:51,311 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 11:40:51,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1811323200] [2019-11-21 11:40:51,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:40:51,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 11:40:51,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365684289] [2019-11-21 11:40:51,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 11:40:51,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:40:51,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 11:40:51,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:40:51,342 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2019-11-21 11:40:51,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:40:51,400 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-21 11:40:51,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 11:40:51,402 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-11-21 11:40:51,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:40:51,412 INFO L225 Difference]: With dead ends: 29 [2019-11-21 11:40:51,413 INFO L226 Difference]: Without dead ends: 26 [2019-11-21 11:40:51,415 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:40:51,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-21 11:40:51,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-21 11:40:51,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-21 11:40:51,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-21 11:40:51,455 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2019-11-21 11:40:51,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:40:51,455 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-21 11:40:51,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 11:40:51,456 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-21 11:40:51,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-21 11:40:51,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:40:51,457 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:40:51,661 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:40:51,663 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:40:51,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:40:51,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1653563109, now seen corresponding path program 1 times [2019-11-21 11:40:51,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:40:51,664 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1863341883] [2019-11-21 11:40:51,664 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 11:40:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:40:51,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-21 11:40:51,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:40:52,065 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 11:40:52,066 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:40:52,259 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 11:40:52,259 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1863341883] [2019-11-21 11:40:52,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:40:52,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2019-11-21 11:40:52,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652952039] [2019-11-21 11:40:52,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 11:40:52,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:40:52,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 11:40:52,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 11:40:52,264 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 13 states. [2019-11-21 11:40:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:40:52,484 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-11-21 11:40:52,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-21 11:40:52,485 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2019-11-21 11:40:52,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:40:52,486 INFO L225 Difference]: With dead ends: 25 [2019-11-21 11:40:52,487 INFO L226 Difference]: Without dead ends: 25 [2019-11-21 11:40:52,488 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 11:40:52,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-21 11:40:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-21 11:40:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-21 11:40:52,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-21 11:40:52,492 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 19 [2019-11-21 11:40:52,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:40:52,493 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-21 11:40:52,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 11:40:52,493 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-21 11:40:52,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:40:52,494 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:40:52,494 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 11:40:52,697 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:40:52,698 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:40:52,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:40:52,698 INFO L82 PathProgramCache]: Analyzing trace with hash 279151545, now seen corresponding path program 1 times [2019-11-21 11:40:52,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:40:52,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1287650322] [2019-11-21 11:40:52,699 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 11:40:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:40:52,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:40:52,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:40:53,013 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 11:40:53,013 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:40:53,017 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:40:53,017 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:40:53,017 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:40:53,056 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 11:40:53,057 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:40:53,169 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 11:40:53,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1287650322] [2019-11-21 11:40:53,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:40:53,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 11:40:53,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29496618] [2019-11-21 11:40:53,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 11:40:53,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:40:53,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 11:40:53,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:40:53,171 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2019-11-21 11:40:53,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:40:53,263 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2019-11-21 11:40:53,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 11:40:53,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-21 11:40:53,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:40:53,269 INFO L225 Difference]: With dead ends: 37 [2019-11-21 11:40:53,271 INFO L226 Difference]: Without dead ends: 37 [2019-11-21 11:40:53,271 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:40:53,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-21 11:40:53,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-21 11:40:53,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-21 11:40:53,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-21 11:40:53,281 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 20 [2019-11-21 11:40:53,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:40:53,281 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-21 11:40:53,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 11:40:53,282 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-21 11:40:53,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:40:53,286 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:40:53,286 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:40:53,489 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:40:53,490 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:40:53,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:40:53,490 INFO L82 PathProgramCache]: Analyzing trace with hash 279399091, now seen corresponding path program 1 times [2019-11-21 11:40:53,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:40:53,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [948001479] [2019-11-21 11:40:53,491 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 11:40:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:40:53,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:40:53,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:40:53,743 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 11:40:53,743 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:40:53,885 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 11:40:53,886 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [948001479] [2019-11-21 11:40:53,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:40:53,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-21 11:40:53,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420580064] [2019-11-21 11:40:53,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 11:40:53,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:40:53,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 11:40:53,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:40:53,888 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 7 states. [2019-11-21 11:40:53,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:40:53,930 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-11-21 11:40:53,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 11:40:53,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-21 11:40:53,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:40:53,932 INFO L225 Difference]: With dead ends: 37 [2019-11-21 11:40:53,932 INFO L226 Difference]: Without dead ends: 37 [2019-11-21 11:40:53,932 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:40:53,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-21 11:40:53,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-21 11:40:53,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-21 11:40:53,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-11-21 11:40:53,938 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 20 [2019-11-21 11:40:53,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:40:53,938 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-11-21 11:40:53,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 11:40:53,938 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-11-21 11:40:53,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:40:53,939 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:40:53,939 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 11:40:54,142 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:40:54,143 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:40:54,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:40:54,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1517799814, now seen corresponding path program 1 times [2019-11-21 11:40:54,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:40:54,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1070721798] [2019-11-21 11:40:54,145 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 11:40:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:40:54,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:40:54,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:40:54,408 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 11:40:54,408 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:40:54,485 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 11:40:54,485 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1070721798] [2019-11-21 11:40:54,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:40:54,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-21 11:40:54,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736357199] [2019-11-21 11:40:54,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 11:40:54,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:40:54,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 11:40:54,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-21 11:40:54,487 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2019-11-21 11:40:54,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:40:54,538 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-11-21 11:40:54,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-21 11:40:54,538 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-11-21 11:40:54,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:40:54,539 INFO L225 Difference]: With dead ends: 34 [2019-11-21 11:40:54,539 INFO L226 Difference]: Without dead ends: 33 [2019-11-21 11:40:54,540 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:40:54,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-21 11:40:54,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-11-21 11:40:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-21 11:40:54,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-11-21 11:40:54,545 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 20 [2019-11-21 11:40:54,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:40:54,545 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2019-11-21 11:40:54,545 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 11:40:54,545 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-11-21 11:40:54,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:40:54,546 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:40:54,546 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 11:40:54,748 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:40:54,750 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:40:54,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:40:54,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1517552268, now seen corresponding path program 1 times [2019-11-21 11:40:54,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:40:54,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [94992736] [2019-11-21 11:40:54,752 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 11:40:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:40:54,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-21 11:40:54,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:40:54,975 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 11:40:54,976 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:40:55,081 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 11:40:55,082 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [94992736] [2019-11-21 11:40:55,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:40:55,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 11:40:55,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554488876] [2019-11-21 11:40:55,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 11:40:55,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:40:55,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 11:40:55,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:40:55,085 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 3 states. [2019-11-21 11:40:55,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:40:55,111 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2019-11-21 11:40:55,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 11:40:55,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-21 11:40:55,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:40:55,113 INFO L225 Difference]: With dead ends: 34 [2019-11-21 11:40:55,113 INFO L226 Difference]: Without dead ends: 24 [2019-11-21 11:40:55,113 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:40:55,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-21 11:40:55,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-21 11:40:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-21 11:40:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2019-11-21 11:40:55,116 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 20 [2019-11-21 11:40:55,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:40:55,116 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2019-11-21 11:40:55,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 11:40:55,116 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2019-11-21 11:40:55,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 11:40:55,117 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:40:55,117 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 11:40:55,318 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:40:55,319 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, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:40:55,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:40:55,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1147366747, now seen corresponding path program 1 times [2019-11-21 11:40:55,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:40:55,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [524927733] [2019-11-21 11:40:55,321 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 11:40:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:40:55,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 11:40:55,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:40:55,595 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:40:55,595 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 11:40:55,596 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:40:55,613 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 11:40:55,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:40:55,618 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 11:40:55,618 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 11:40:55,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:40:55,633 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:40:55,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:40:55,662 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:41:01,860 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 11:41:01,860 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:06,280 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:06,281 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 11:41:06,286 INFO L168 Benchmark]: Toolchain (without parser) took 18175.86 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 223.3 MB). Free memory was 961.7 MB in the beginning and 865.6 MB in the end (delta: 96.1 MB). Peak memory consumption was 319.4 MB. Max. memory is 11.5 GB. [2019-11-21 11:41:06,286 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:41:06,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 869.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-21 11:41:06,288 INFO L168 Benchmark]: Boogie Preprocessor took 101.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 11:41:06,289 INFO L168 Benchmark]: RCFGBuilder took 1483.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.9 MB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. [2019-11-21 11:41:06,290 INFO L168 Benchmark]: TraceAbstraction took 15716.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.9 MB). Free memory was 993.9 MB in the beginning and 865.6 MB in the end (delta: 128.3 MB). Peak memory consumption was 202.2 MB. Max. memory is 11.5 GB. [2019-11-21 11:41:06,293 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 869.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 101.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1483.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.9 MB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15716.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.9 MB). Free memory was 993.9 MB in the beginning and 865.6 MB in the end (delta: 128.3 MB). Peak memory consumption was 202.2 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...