./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 72d82df7d97aedab3c94a3eb173a5c41df708a8b --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 12:01:12,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:01:12,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:01:12,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:01:12,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:01:12,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:01:12,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:01:12,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:01:12,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:01:12,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:01:12,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:01:12,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:01:12,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:01:12,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:01:12,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:01:12,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:01:12,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:01:12,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:01:12,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:01:12,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:01:12,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:01:12,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:01:12,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:01:12,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:01:12,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:01:12,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:01:12,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:01:12,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:01:12,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:01:12,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:01:12,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:01:12,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:01:12,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:01:12,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:01:12,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:01:12,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:01:12,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:01:12,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:01:12,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:01:12,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:01:12,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:01:12,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 12:01:12,992 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:01:12,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:01:12,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:01:12,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:01:12,994 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:01:12,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:01:12,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:01:12,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:01:12,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:01:12,996 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:01:12,997 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:01:12,997 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:01:12,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:01:12,998 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:01:12,998 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:12,998 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:01:12,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:01:12,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:01:12,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:01:13,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:01:13,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:01:13,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:01:13,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:01:13,001 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:01:13,001 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:01:13,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:01:13,002 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 -> 72d82df7d97aedab3c94a3eb173a5c41df708a8b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:01:13,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:01:13,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:01:13,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:01:13,382 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:01:13,383 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:01:13,384 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2019-11-21 12:01:13,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2add21069/5686c0ef7b554edc9630af9f0814af55/FLAG5536a49e3 [2019-11-21 12:01:13,978 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:01:13,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2019-11-21 12:01:14,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2add21069/5686c0ef7b554edc9630af9f0814af55/FLAG5536a49e3 [2019-11-21 12:01:14,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2add21069/5686c0ef7b554edc9630af9f0814af55 [2019-11-21 12:01:14,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:01:14,252 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:01:14,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:01:14,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:01:14,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:01:14,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:01:14" (1/1) ... [2019-11-21 12:01:14,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da241a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:14, skipping insertion in model container [2019-11-21 12:01:14,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:01:14" (1/1) ... [2019-11-21 12:01:14,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:01:14,337 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:01:14,812 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 12:01:14,813 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:01:14,813 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:14,823 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 12:01:14,824 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:01:14,824 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:14,826 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 12:01:14,827 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:01:14,827 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:14,831 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 12:01:14,832 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:01:14,832 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:14,868 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 12:01:14,868 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:01:14,875 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:14,887 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 12:01:14,888 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [763] [2019-11-21 12:01:14,888 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:14,901 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 12:01:14,905 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [776] [2019-11-21 12:01:14,906 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:14,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:01:14,943 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:01:14,953 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:01:15,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:01:15,060 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:01:15,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:01:15,222 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:01:15,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:15 WrapperNode [2019-11-21 12:01:15,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:01:15,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:01:15,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:01:15,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:01:15,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:15" (1/1) ... [2019-11-21 12:01:15,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:15" (1/1) ... [2019-11-21 12:01:15,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:15" (1/1) ... [2019-11-21 12:01:15,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:15" (1/1) ... [2019-11-21 12:01:15,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:15" (1/1) ... [2019-11-21 12:01:15,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:15" (1/1) ... [2019-11-21 12:01:15,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:15" (1/1) ... [2019-11-21 12:01:15,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:01:15,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:01:15,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:01:15,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:01:15,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:15" (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 12:01:15,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:01:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:01:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:01:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:01:15,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:01:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:01:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:01:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:01:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:01:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:01:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:01:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:01:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:01:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:01:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:01:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:01:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:01:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:01:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:01:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:01:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:01:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:01:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:01:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:01:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:01:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:01:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:01:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:01:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:01:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:01:15,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:01:15,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:01:15,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:01:15,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:01:15,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:01:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:01:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:01:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:01:15,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:01:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:01:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:01:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2019-11-21 12:01:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2019-11-21 12:01:15,453 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2019-11-21 12:01:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_19 [2019-11-21 12:01:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2019-11-21 12:01:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:01:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:01:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:01:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:01:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:01:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:01:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:01:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:01:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:01:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:01:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:01:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:01:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:01:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:01:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:01:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:01:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:01:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:01:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:01:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:01:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:01:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:01:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:01:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:01:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:01:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:01:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:01:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:01:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:01:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:01:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:01:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:01:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:01:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:01:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:01:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:01:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:01:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:01:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:01:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:01:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:01:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:01:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:01:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:01:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:01:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:01:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:01:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:01:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:01:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:01:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:01:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:01:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:01:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:01:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:01:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:01:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:01:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:01:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:01:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:01:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:01:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:01:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:01:15,467 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:01:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:01:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:01:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:01:15,468 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:01:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:01:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:01:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:01:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:01:15,469 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:01:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:01:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:01:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:01:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:01:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:01:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:01:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:01:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:01:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:01:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:01:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:01:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:01:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:01:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:01:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:01:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:01:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:01:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:01:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:01:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:01:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:01:15,474 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:01:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:01:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:01:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:01:15,475 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:01:15,476 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:01:15,476 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:01:15,476 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:01:15,476 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:01:15,476 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:01:15,477 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:01:15,477 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:01:15,477 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:01:15,477 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:01:15,477 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:01:15,478 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:01:15,478 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:01:15,478 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:01:15,478 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:01:15,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:01:15,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:01:15,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:01:15,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:01:15,479 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:01:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:01:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:01:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:01:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:01:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:01:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:01:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:01:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:01:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:01:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:01:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:01:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:01:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:01:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:01:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:01:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:01:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:01:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:01:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:01:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:01:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:01:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:01:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:01:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:01:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:01:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:01:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:01:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:01:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:01:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:01:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:01:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:01:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:01:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:01:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:01:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:01:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:01:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:01:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:01:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:01:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:01:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:01:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2019-11-21 12:01:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2019-11-21 12:01:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2019-11-21 12:01:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure probe_19 [2019-11-21 12:01:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2019-11-21 12:01:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:01:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:01:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:01:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:01:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:01:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:01:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:01:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:01:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:01:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:01:16,306 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:01:16,705 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:01:17,078 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:01:17,078 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 12:01:17,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:01:17 BoogieIcfgContainer [2019-11-21 12:01:17,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:01:17,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:01:17,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:01:17,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:01:17,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:01:14" (1/3) ... [2019-11-21 12:01:17,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716061f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:01:17, skipping insertion in model container [2019-11-21 12:01:17,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:15" (2/3) ... [2019-11-21 12:01:17,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716061f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:01:17, skipping insertion in model container [2019-11-21 12:01:17,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:01:17" (3/3) ... [2019-11-21 12:01:17,094 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test19-1.i [2019-11-21 12:01:17,104 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:01:17,117 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 94 error locations. [2019-11-21 12:01:17,130 INFO L249 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2019-11-21 12:01:17,153 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:01:17,153 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:01:17,154 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:01:17,154 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:01:17,154 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:01:17,154 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:01:17,155 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:01:17,155 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:01:17,185 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-11-21 12:01:17,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 12:01:17,197 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:01:17,205 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:01:17,206 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-21 12:01:17,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:01:17,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1214079896, now seen corresponding path program 1 times [2019-11-21 12:01:17,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:01:17,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1943847572] [2019-11-21 12:01:17,228 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 12:01:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:01:17,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 12:01:17,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:01:17,689 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 12:01:17,690 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:01:17,700 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:01:17,700 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:01:17,700 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:01:17,812 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:01:17,813 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 12:01:17,815 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:01:17,845 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 12:01:17,846 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 12:01:17,847 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 12:01:17,882 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 12:01:17,882 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:01:19,630 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 12:01:19,632 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1943847572] [2019-11-21 12:01:19,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:01:19,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-11-21 12:01:19,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591207611] [2019-11-21 12:01:19,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 12:01:19,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:01:19,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 12:01:19,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-11-21 12:01:19,658 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 13 states. [2019-11-21 12:01:39,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:01:39,392 INFO L93 Difference]: Finished difference Result 158 states and 182 transitions. [2019-11-21 12:01:39,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 12:01:39,395 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2019-11-21 12:01:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:01:39,407 INFO L225 Difference]: With dead ends: 158 [2019-11-21 12:01:39,408 INFO L226 Difference]: Without dead ends: 155 [2019-11-21 12:01:39,410 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2019-11-21 12:01:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-21 12:01:39,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 87. [2019-11-21 12:01:39,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-21 12:01:39,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2019-11-21 12:01:39,467 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 15 [2019-11-21 12:01:39,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:01:39,468 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2019-11-21 12:01:39,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 12:01:39,468 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2019-11-21 12:01:39,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 12:01:39,470 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:01:39,470 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:01:39,673 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:01:39,674 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-21 12:01:39,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:01:39,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1214079897, now seen corresponding path program 1 times [2019-11-21 12:01:39,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:01:39,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1629493784] [2019-11-21 12:01:39,677 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 12:01:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:01:39,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-21 12:01:39,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:01:39,972 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 12:01:39,973 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:01:39,982 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:01:39,986 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 12:01:39,986 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:01:39,994 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:01:39,994 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:01:39,995 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 12:01:42,121 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:01:42,123 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 12:01:42,124 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:01:42,138 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:01:42,150 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:01:42,151 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 12:01:42,152 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:01:42,168 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:01:42,170 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:01:42,170 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:11 [2019-11-21 12:01:42,199 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 12:01:42,199 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:01:42,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:01:42,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:01:42,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:01:42,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:01:42,524 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:01:42,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:01:42,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:01:42,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:01:46,503 WARN L192 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2019-11-21 12:01:46,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:01:47,160 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 12:01:47,161 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1629493784] [2019-11-21 12:01:47,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:01:47,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 12:01:47,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210682779] [2019-11-21 12:01:47,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 12:01:47,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:01:47,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 12:01:47,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=148, Unknown=2, NotChecked=0, Total=182 [2019-11-21 12:01:47,164 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 14 states. [2019-11-21 12:02:08,296 WARN L192 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-11-21 12:03:05,476 WARN L192 SmtUtils]: Spent 4.12 s on a formula simplification. DAG size of input: 45 DAG size of output: 16 [2019-11-21 12:03:21,362 WARN L192 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 12 [2019-11-21 12:05:07,255 WARN L192 SmtUtils]: Spent 8.59 s on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-11-21 12:05:22,093 WARN L192 SmtUtils]: Spent 8.15 s on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-11-21 12:05:28,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:05:28,224 INFO L93 Difference]: Finished difference Result 163 states and 186 transitions. [2019-11-21 12:05:28,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-21 12:05:28,225 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-11-21 12:05:28,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:05:28,228 INFO L225 Difference]: With dead ends: 163 [2019-11-21 12:05:28,228 INFO L226 Difference]: Without dead ends: 163 [2019-11-21 12:05:28,230 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 47.8s TimeCoverageRelationStatistics Valid=130, Invalid=462, Unknown=8, NotChecked=0, Total=600 [2019-11-21 12:05:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-21 12:05:28,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 84. [2019-11-21 12:05:28,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-11-21 12:05:28,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2019-11-21 12:05:28,244 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 15 [2019-11-21 12:05:28,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:05:28,244 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2019-11-21 12:05:28,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 12:05:28,245 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2019-11-21 12:05:28,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:05:28,246 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:05:28,246 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:05:28,448 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:28,450 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-21 12:05:28,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:05:28,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1414127168, now seen corresponding path program 1 times [2019-11-21 12:05:28,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:05:28,453 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1930769568] [2019-11-21 12:05:28,453 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 12:05:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:05:28,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 12:05:28,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:05:28,915 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:28,916 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 12:05:28,917 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:05:28,944 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 12:05:28,945 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 12:05:28,945 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 12:05:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:05:28,966 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:05:33,347 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:33,348 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2019-11-21 12:05:33,349 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:05:33,351 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:33,351 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:05:33,351 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:1 [2019-11-21 12:05:33,365 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:05:33,365 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1930769568] [2019-11-21 12:05:33,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:05:33,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-11-21 12:05:33,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64668598] [2019-11-21 12:05:33,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 12:05:33,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:05:33,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 12:05:33,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-21 12:05:33,367 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 13 states. [2019-11-21 12:05:52,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:05:52,908 INFO L93 Difference]: Finished difference Result 143 states and 167 transitions. [2019-11-21 12:05:52,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 12:05:52,909 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2019-11-21 12:05:52,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:05:52,912 INFO L225 Difference]: With dead ends: 143 [2019-11-21 12:05:52,912 INFO L226 Difference]: Without dead ends: 143 [2019-11-21 12:05:52,913 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=77, Invalid=264, Unknown=1, NotChecked=0, Total=342 [2019-11-21 12:05:52,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-21 12:05:52,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 82. [2019-11-21 12:05:52,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-21 12:05:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2019-11-21 12:05:52,924 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 26 [2019-11-21 12:05:52,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:05:52,924 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2019-11-21 12:05:52,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 12:05:52,925 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2019-11-21 12:05:52,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:05:52,925 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:05:52,925 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:05:53,126 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:53,128 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-21 12:05:53,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:05:53,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1414127169, now seen corresponding path program 1 times [2019-11-21 12:05:53,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:05:53,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1041242540] [2019-11-21 12:05:53,129 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 12:05:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:05:53,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-21 12:05:53,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:05:53,444 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 12:05:53,445 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:05:53,453 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:53,457 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 12:05:53,457 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:05:53,465 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:53,465 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:05:53,465 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 12:05:55,577 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:05:55,578 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-21 12:05:55,579 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:05:55,592 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:55,608 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:55,609 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-21 12:05:55,610 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:05:55,622 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:55,623 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:05:55,623 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:11 [2019-11-21 12:05:55,718 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:05:55,720 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 12:05:55,721 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:05:55,736 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:55,748 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:55,749 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-21 12:05:55,749 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:05:55,761 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:55,761 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:05:55,762 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:11 [2019-11-21 12:05:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 12:05:55,789 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:05:55,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:05:58,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:58,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:05:58,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:58,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:58,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:05:58,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:58,027 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:58,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:59,416 WARN L192 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-21 12:05:59,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:06:02,161 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:06:02,202 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:06:02,203 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2019-11-21 12:06:02,203 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:06:02,218 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:06:02,218 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2019-11-21 12:06:02,219 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:06:02,236 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:06:02,237 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-11-21 12:06:02,238 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-21 12:06:02,279 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:06:02,280 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2019-11-21 12:06:02,281 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:58, output treesize:23 [2019-11-21 12:06:02,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:06:04,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:06:04,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:06:04,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:06:04,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:06:04,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:06:04,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:06:04,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:06:04,708 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-11-21 12:06:04,713 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-21 12:06:07,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:06:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 12:06:09,179 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1041242540] [2019-11-21 12:06:09,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:06:09,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2019-11-21 12:06:09,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420799706] [2019-11-21 12:06:09,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-21 12:06:09,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:06:09,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-21 12:06:09,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=327, Unknown=3, NotChecked=0, Total=380 [2019-11-21 12:06:09,181 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand 20 states. [2019-11-21 12:06:27,799 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-21 12:06:36,111 WARN L192 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-11-21 12:06:52,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:06:52,034 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions. [2019-11-21 12:06:52,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-21 12:06:52,034 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 26 [2019-11-21 12:06:52,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:06:52,036 INFO L225 Difference]: With dead ends: 123 [2019-11-21 12:06:52,036 INFO L226 Difference]: Without dead ends: 123 [2019-11-21 12:06:52,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=146, Invalid=721, Unknown=3, NotChecked=0, Total=870 [2019-11-21 12:06:52,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-11-21 12:06:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 80. [2019-11-21 12:06:52,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-21 12:06:52,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-21 12:06:52,048 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 26 [2019-11-21 12:06:52,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:06:52,048 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-21 12:06:52,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-21 12:06:52,049 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-21 12:06:52,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:06:52,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:06:52,050 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:06:52,253 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:06:52,254 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-21 12:06:52,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:06:52,256 INFO L82 PathProgramCache]: Analyzing trace with hash -954694802, now seen corresponding path program 1 times [2019-11-21 12:06:52,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:06:52,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [399238870] [2019-11-21 12:06:52,257 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 12:06:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:06:52,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:06:52,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:06:52,527 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 12:06:52,527 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:06:52,608 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 12:06:52,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [399238870] [2019-11-21 12:06:52,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:06:52,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-21 12:06:52,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65895239] [2019-11-21 12:06:52,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 12:06:52,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:06:52,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 12:06:52,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 12:06:52,610 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 10 states. [2019-11-21 12:06:52,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:06:52,669 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2019-11-21 12:06:52,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 12:06:52,669 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2019-11-21 12:06:52,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:06:52,670 INFO L225 Difference]: With dead ends: 95 [2019-11-21 12:06:52,671 INFO L226 Difference]: Without dead ends: 95 [2019-11-21 12:06:52,671 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-21 12:06:52,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-21 12:06:52,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2019-11-21 12:06:52,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-11-21 12:06:52,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2019-11-21 12:06:52,680 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 26 [2019-11-21 12:06:52,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:06:52,680 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2019-11-21 12:06:52,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 12:06:52,680 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2019-11-21 12:06:52,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-21 12:06:52,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:06:52,682 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:06:52,893 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:06:52,893 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-21 12:06:52,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:06:52,894 INFO L82 PathProgramCache]: Analyzing trace with hash 469818757, now seen corresponding path program 1 times [2019-11-21 12:06:52,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:06:52,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1724668148] [2019-11-21 12:06:52,894 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 12:06:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:06:53,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:06:53,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:06:53,186 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-21 12:06:53,187 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:06:53,194 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:06:53,195 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:06:53,195 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:10 [2019-11-21 12:06:53,206 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2019-11-21 12:06:53,207 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:06:53,208 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:06:53,209 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:06:53,209 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:4 [2019-11-21 12:06:53,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:06:53,217 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:06:53,326 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 12:06:53,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1724668148] [2019-11-21 12:06:53,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:06:53,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 12:06:53,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121681310] [2019-11-21 12:06:53,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:06:53,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:06:53,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:06:53,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:06:53,328 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 6 states. [2019-11-21 12:06:53,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:06:53,452 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2019-11-21 12:06:53,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 12:06:53,453 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-11-21 12:06:53,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:06:53,454 INFO L225 Difference]: With dead ends: 91 [2019-11-21 12:06:53,454 INFO L226 Difference]: Without dead ends: 91 [2019-11-21 12:06:53,455 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-21 12:06:53,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-21 12:06:53,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2019-11-21 12:06:53,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-21 12:06:53,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2019-11-21 12:06:53,463 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 27 [2019-11-21 12:06:53,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:06:53,463 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2019-11-21 12:06:53,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:06:53,463 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2019-11-21 12:06:53,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-21 12:06:53,465 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:06:53,465 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:06:53,668 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:06:53,670 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe_19Err0REQUIRES_VIOLATION, probe_19Err5REQUIRES_VIOLATION, probe_19Err8ASSERT_VIOLATIONMEMORY_FREE, probe_19Err1REQUIRES_VIOLATION, probe_19Err3REQUIRES_VIOLATION, probe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_19Err2REQUIRES_VIOLATION, probe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_19Err4REQUIRES_VIOLATION]=== [2019-11-21 12:06:53,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:06:53,670 INFO L82 PathProgramCache]: Analyzing trace with hash -40715420, now seen corresponding path program 1 times [2019-11-21 12:06:53,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:06:53,671 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1438161943] [2019-11-21 12:06:53,671 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 12:06:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:06:53,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 12:06:53,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:06:53,957 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:06:53,957 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 12:06:53,958 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:06:53,977 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 12:06:53,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:06:53,978 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 12:06:53,979 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 12:06:53,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:06:53,984 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:06:53,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:06:53,995 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:07:00,139 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 12:07:00,139 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:07:04,457 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:07:04,458 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 12:07:04,463 INFO L168 Benchmark]: Toolchain (without parser) took 350211.18 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 238.6 MB). Free memory was 955.0 MB in the beginning and 927.8 MB in the end (delta: 27.2 MB). Peak memory consumption was 265.7 MB. Max. memory is 11.5 GB. [2019-11-21 12:07:04,463 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:07:04,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 971.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-21 12:07:04,464 INFO L168 Benchmark]: Boogie Preprocessor took 129.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-21 12:07:04,465 INFO L168 Benchmark]: RCFGBuilder took 1726.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.2 MB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. [2019-11-21 12:07:04,466 INFO L168 Benchmark]: TraceAbstraction took 347377.59 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 84.4 MB). Free memory was 979.2 MB in the beginning and 927.8 MB in the end (delta: 51.4 MB). Peak memory consumption was 135.8 MB. Max. memory is 11.5 GB. [2019-11-21 12:07:04,468 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 971.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 129.33 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1726.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.2 MB in the end (delta: 120.5 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 347377.59 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 84.4 MB). Free memory was 979.2 MB in the beginning and 927.8 MB in the end (delta: 51.4 MB). Peak memory consumption was 135.8 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...