./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 32bit -------------------------------------------------------------------------------- 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-32bit-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 32bit --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 13:17:12,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 13:17:12,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 13:17:12,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 13:17:12,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 13:17:12,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 13:17:12,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 13:17:12,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 13:17:12,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 13:17:12,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 13:17:12,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 13:17:12,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 13:17:12,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 13:17:12,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 13:17:12,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 13:17:12,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 13:17:12,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 13:17:12,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 13:17:12,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 13:17:12,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 13:17:12,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 13:17:12,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 13:17:12,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 13:17:12,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 13:17:12,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 13:17:12,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 13:17:12,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 13:17:12,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 13:17:12,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 13:17:12,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 13:17:12,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 13:17:12,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 13:17:12,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 13:17:12,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 13:17:12,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 13:17:12,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 13:17:12,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 13:17:12,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 13:17:12,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 13:17:12,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 13:17:12,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 13:17:12,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 13:17:12,602 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 13:17:12,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 13:17:12,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 13:17:12,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 13:17:12,606 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 13:17:12,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 13:17:12,607 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 13:17:12,608 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 13:17:12,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 13:17:12,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 13:17:12,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 13:17:12,609 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 13:17:12,610 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 13:17:12,610 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 13:17:12,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 13:17:12,611 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 13:17:12,611 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 13:17:12,611 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 13:17:12,611 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 13:17:12,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 13:17:12,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 13:17:12,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 13:17:12,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 13:17:12,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 13:17:12,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 13:17:12,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 13:17:12,614 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 13:17:12,614 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 13:17:12,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 13:17:12,615 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 -> 32bit 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 13:17:12,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 13:17:12,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 13:17:12,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 13:17:12,965 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 13:17:12,967 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 13:17:12,968 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2019-11-21 13:17:13,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99a75fefe/2ffeb5a769ef4180867a5fde1772a544/FLAGf66c14fb5 [2019-11-21 13:17:13,604 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 13:17:13,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2019-11-21 13:17:13,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99a75fefe/2ffeb5a769ef4180867a5fde1772a544/FLAGf66c14fb5 [2019-11-21 13:17:13,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99a75fefe/2ffeb5a769ef4180867a5fde1772a544 [2019-11-21 13:17:13,939 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 13:17:13,940 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 13:17:13,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 13:17:13,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 13:17:13,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 13:17:13,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:17:13" (1/1) ... [2019-11-21 13:17:13,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1fa10c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:13, skipping insertion in model container [2019-11-21 13:17:13,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:17:13" (1/1) ... [2019-11-21 13:17:13,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 13:17:14,033 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 13:17:14,430 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 13:17:14,430 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 13:17:14,431 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:17:14,444 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 13:17:14,445 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 13:17:14,445 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:17:14,448 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 13:17:14,448 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 13:17:14,449 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:17:14,451 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 13:17:14,452 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 13:17:14,452 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:17:14,479 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 13:17:14,479 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 13:17:14,479 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:17:14,490 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 13:17:14,491 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [763] [2019-11-21 13:17:14,491 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:17:14,495 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 13:17:14,496 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [776] [2019-11-21 13:17:14,496 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:17:14,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 13:17:14,525 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 13:17:14,548 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 13:17:14,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 13:17:14,654 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 13:17:14,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 13:17:14,831 INFO L205 MainTranslator]: Completed translation [2019-11-21 13:17:14,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:14 WrapperNode [2019-11-21 13:17:14,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 13:17:14,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 13:17:14,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 13:17:14,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 13:17:14,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:14" (1/1) ... [2019-11-21 13:17:14,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:14" (1/1) ... [2019-11-21 13:17:14,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:14" (1/1) ... [2019-11-21 13:17:14,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:14" (1/1) ... [2019-11-21 13:17:14,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:14" (1/1) ... [2019-11-21 13:17:14,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:14" (1/1) ... [2019-11-21 13:17:14,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:14" (1/1) ... [2019-11-21 13:17:14,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 13:17:14,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 13:17:14,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 13:17:14,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 13:17:14,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:14" (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 13:17:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 13:17:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 13:17:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 13:17:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 13:17:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 13:17:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 13:17:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 13:17:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 13:17:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 13:17:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 13:17:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 13:17:15,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 13:17:15,025 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 13:17:15,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 13:17:15,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 13:17:15,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 13:17:15,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 13:17:15,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 13:17:15,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 13:17:15,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 13:17:15,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 13:17:15,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 13:17:15,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 13:17:15,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 13:17:15,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 13:17:15,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 13:17:15,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 13:17:15,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 13:17:15,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 13:17:15,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 13:17:15,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 13:17:15,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 13:17:15,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 13:17:15,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 13:17:15,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 13:17:15,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 13:17:15,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 13:17:15,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 13:17:15,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 13:17:15,031 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 13:17:15,031 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 13:17:15,031 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2019-11-21 13:17:15,031 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2019-11-21 13:17:15,031 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2019-11-21 13:17:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_19 [2019-11-21 13:17:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2019-11-21 13:17:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 13:17:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 13:17:15,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 13:17:15,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 13:17:15,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 13:17:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 13:17:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 13:17:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 13:17:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 13:17:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 13:17:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 13:17:15,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 13:17:15,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 13:17:15,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 13:17:15,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 13:17:15,035 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 13:17:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 13:17:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 13:17:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 13:17:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 13:17:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 13:17:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 13:17:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 13:17:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 13:17:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 13:17:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 13:17:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 13:17:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 13:17:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 13:17:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 13:17:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 13:17:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 13:17:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 13:17:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 13:17:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 13:17:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 13:17:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 13:17:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 13:17:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 13:17:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 13:17:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 13:17:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 13:17:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 13:17:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 13:17:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 13:17:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 13:17:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 13:17:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 13:17:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 13:17:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 13:17:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 13:17:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 13:17:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 13:17:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 13:17:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 13:17:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 13:17:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 13:17:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 13:17:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 13:17:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 13:17:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 13:17:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 13:17:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 13:17:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 13:17:15,046 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 13:17:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 13:17:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 13:17:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 13:17:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 13:17:15,048 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 13:17:15,048 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 13:17:15,048 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 13:17:15,048 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 13:17:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 13:17:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 13:17:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 13:17:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 13:17:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 13:17:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 13:17:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 13:17:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 13:17:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 13:17:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 13:17:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 13:17:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 13:17:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 13:17:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 13:17:15,052 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 13:17:15,052 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 13:17:15,052 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 13:17:15,052 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 13:17:15,052 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 13:17:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 13:17:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 13:17:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 13:17:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 13:17:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 13:17:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 13:17:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 13:17:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 13:17:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 13:17:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 13:17:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 13:17:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 13:17:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 13:17:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 13:17:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 13:17:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 13:17:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 13:17:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 13:17:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 13:17:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 13:17:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 13:17:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 13:17:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 13:17:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 13:17:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 13:17:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 13:17:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 13:17:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 13:17:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 13:17:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 13:17:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 13:17:15,060 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 13:17:15,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 13:17:15,060 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 13:17:15,060 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 13:17:15,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 13:17:15,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 13:17:15,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 13:17:15,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 13:17:15,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 13:17:15,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 13:17:15,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 13:17:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 13:17:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 13:17:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 13:17:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 13:17:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 13:17:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 13:17:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 13:17:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 13:17:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 13:17:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 13:17:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 13:17:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 13:17:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 13:17:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 13:17:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 13:17:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 13:17:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 13:17:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 13:17:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 13:17:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 13:17:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 13:17:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 13:17:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 13:17:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 13:17:15,066 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 13:17:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 13:17:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2019-11-21 13:17:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2019-11-21 13:17:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2019-11-21 13:17:15,067 INFO L130 BoogieDeclarations]: Found specification of procedure probe_19 [2019-11-21 13:17:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2019-11-21 13:17:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 13:17:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 13:17:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 13:17:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 13:17:15,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 13:17:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 13:17:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 13:17:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 13:17:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 13:17:15,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 13:17:15,930 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 13:17:16,284 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 13:17:16,625 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 13:17:16,626 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 13:17:16,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:17:16 BoogieIcfgContainer [2019-11-21 13:17:16,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 13:17:16,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 13:17:16,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 13:17:16,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 13:17:16,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:17:13" (1/3) ... [2019-11-21 13:17:16,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4825ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:17:16, skipping insertion in model container [2019-11-21 13:17:16,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:17:14" (2/3) ... [2019-11-21 13:17:16,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4825ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:17:16, skipping insertion in model container [2019-11-21 13:17:16,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:17:16" (3/3) ... [2019-11-21 13:17:16,635 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test19-1.i [2019-11-21 13:17:16,645 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 13:17:16,653 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 94 error locations. [2019-11-21 13:17:16,664 INFO L249 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2019-11-21 13:17:16,687 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 13:17:16,688 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 13:17:16,688 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 13:17:16,688 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 13:17:16,688 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 13:17:16,688 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 13:17:16,688 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 13:17:16,689 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 13:17:16,712 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-11-21 13:17:16,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 13:17:16,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:17:16,722 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:17:16,723 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 13:17:16,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:17:16,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1214079896, now seen corresponding path program 1 times [2019-11-21 13:17:16,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:17:16,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [492129303] [2019-11-21 13:17:16,740 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 13:17:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:17:17,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 13:17:17,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:17:17,172 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 13:17:17,173 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:17:17,182 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:17:17,182 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:17:17,183 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:17:17,305 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:17:17,306 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 13:17:17,307 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:17:17,333 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 13:17:17,334 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 13:17:17,335 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 13:17:17,370 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 13:17:17,370 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:17:17,702 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 13:17:17,703 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [492129303] [2019-11-21 13:17:17,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:17:17,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-11-21 13:17:17,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678227019] [2019-11-21 13:17:17,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 13:17:17,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:17:17,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 13:17:17,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-11-21 13:17:17,730 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 13 states. [2019-11-21 13:17:36,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:17:36,083 INFO L93 Difference]: Finished difference Result 158 states and 182 transitions. [2019-11-21 13:17:36,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 13:17:36,085 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2019-11-21 13:17:36,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:17:36,113 INFO L225 Difference]: With dead ends: 158 [2019-11-21 13:17:36,113 INFO L226 Difference]: Without dead ends: 155 [2019-11-21 13:17:36,115 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2019-11-21 13:17:36,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-21 13:17:36,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 87. [2019-11-21 13:17:36,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-21 13:17:36,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2019-11-21 13:17:36,166 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 15 [2019-11-21 13:17:36,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:17:36,166 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2019-11-21 13:17:36,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 13:17:36,167 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2019-11-21 13:17:36,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 13:17:36,168 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:17:36,168 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:17:36,369 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:17:36,370 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 13:17:36,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:17:36,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1214079897, now seen corresponding path program 1 times [2019-11-21 13:17:36,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:17:36,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1056174316] [2019-11-21 13:17:36,373 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 13:17:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:17:36,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-21 13:17:36,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:17:36,707 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 13:17:36,707 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:17:36,716 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:17:36,720 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 13:17:36,721 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:17:36,729 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:17:36,730 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:17:36,730 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 13:17:38,892 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 13:17:38,895 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 13:17:38,895 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:17:38,923 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:17:38,949 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:17:38,950 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 13:17:38,951 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:17:38,967 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:17:38,968 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:17:38,969 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2019-11-21 13:17:38,998 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 13:17:38,999 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:17:39,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:17:40,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:17:40,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:17:40,121 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:17:40,126 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:17:40,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:17:40,136 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:17:40,137 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:17:40,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:17:43,154 WARN L192 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2019-11-21 13:17:43,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:17:50,550 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 13:17:50,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1056174316] [2019-11-21 13:17:50,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:17:50,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 13:17:50,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102268174] [2019-11-21 13:17:50,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 13:17:50,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:17:50,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 13:17:50,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=144, Unknown=6, NotChecked=0, Total=182 [2019-11-21 13:17:50,554 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 14 states. [2019-11-21 13:17:56,829 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_probe_19_~a.base_BEFORE_CALL_4 (_ BitVec 32)) (v_probe_19_~a.offset_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe_19_~a.offset_BEFORE_CALL_2 (_ bv4 32))) (.cse1 (bvadd v_probe_19_~a.offset_BEFORE_CALL_2 (_ bv8 32)))) (or (not (bvsle .cse0 .cse1)) (exists ((v_ldv_malloc_~size_9 (_ BitVec 32)) (v_prenex_1 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1)) (not (bvsle (bvadd v_probe_19_~a.offset_BEFORE_CALL_2 (_ bv8 32)) (select (store |c_old(#length)| v_prenex_1 v_ldv_malloc_~size_9) v_probe_19_~a.base_BEFORE_CALL_4))))) (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_probe_19_~a.base_BEFORE_CALL_4))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (exists ((|v_ldv_malloc_#t~malloc12.base_8| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_8|) (_ bv0 1)))) is different from false [2019-11-21 13:18:18,080 WARN L192 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-11-21 13:19:02,332 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv8 32) (select |c_#length| |c_entry_point_~#a19~0.base|)) (forall ((v_probe_19_~a.base_BEFORE_CALL_4 (_ BitVec 32)) (v_probe_19_~a.offset_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe_19_~a.offset_BEFORE_CALL_2 (_ bv4 32))) (.cse1 (bvadd v_probe_19_~a.offset_BEFORE_CALL_2 (_ bv8 32)))) (or (not (bvsle .cse0 .cse1)) (exists ((v_ldv_malloc_~size_9 (_ BitVec 32)) (v_prenex_1 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1)) (not (bvsle (bvadd v_probe_19_~a.offset_BEFORE_CALL_2 (_ bv8 32)) (select (store |c_old(#length)| v_prenex_1 v_ldv_malloc_~size_9) v_probe_19_~a.base_BEFORE_CALL_4))))) (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_probe_19_~a.base_BEFORE_CALL_4))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (exists ((|v_ldv_malloc_#t~malloc12.base_8| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_8|) (_ bv0 1))) (= (_ bv1 1) (select |c_#valid| |c_entry_point_~#a19~0.base|)) (= (_ bv0 32) |c_entry_point_~#a19~0.offset|)) is different from false [2019-11-21 13:19:08,572 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_probe_19_~a.base_BEFORE_CALL_4 (_ BitVec 32)) (v_probe_19_~a.offset_BEFORE_CALL_2 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe_19_~a.offset_BEFORE_CALL_2 (_ bv4 32))) (.cse1 (bvadd v_probe_19_~a.offset_BEFORE_CALL_2 (_ bv8 32)))) (or (not (bvsle .cse0 .cse1)) (exists ((v_ldv_malloc_~size_9 (_ BitVec 32)) (v_prenex_1 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1)) (not (bvsle (bvadd v_probe_19_~a.offset_BEFORE_CALL_2 (_ bv8 32)) (select (store |c_old(#length)| v_prenex_1 v_ldv_malloc_~size_9) v_probe_19_~a.base_BEFORE_CALL_4))))) (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_probe_19_~a.base_BEFORE_CALL_4))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (exists ((|v_ldv_malloc_#t~malloc12.base_8| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_8|) (_ bv0 1))) (= |c_#valid| |c_old(#valid)|) (= |c_old(#length)| |c_#length|)) is different from false [2019-11-21 13:21:00,642 WARN L192 SmtUtils]: Spent 8.24 s on a formula simplification. DAG size of input: 62 DAG size of output: 35 [2019-11-21 13:21:57,632 WARN L192 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 53 DAG size of output: 25 [2019-11-21 13:21:59,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:21:59,728 INFO L93 Difference]: Finished difference Result 164 states and 189 transitions. [2019-11-21 13:21:59,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-21 13:21:59,728 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-11-21 13:21:59,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:21:59,732 INFO L225 Difference]: With dead ends: 164 [2019-11-21 13:21:59,732 INFO L226 Difference]: Without dead ends: 164 [2019-11-21 13:21:59,733 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 64.9s TimeCoverageRelationStatistics Valid=139, Invalid=454, Unknown=19, NotChecked=144, Total=756 [2019-11-21 13:21:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-21 13:21:59,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 100. [2019-11-21 13:21:59,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-21 13:21:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2019-11-21 13:21:59,749 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 119 transitions. Word has length 15 [2019-11-21 13:21:59,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:21:59,749 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 119 transitions. [2019-11-21 13:21:59,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 13:21:59,750 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2019-11-21 13:21:59,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 13:21:59,751 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:21:59,751 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 13:21:59,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:21:59,954 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 13:21:59,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:21:59,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1414127168, now seen corresponding path program 1 times [2019-11-21 13:21:59,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:21:59,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [459445417] [2019-11-21 13:21:59,957 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 13:22:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:22:00,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 13:22:00,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:22:00,429 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:00,430 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 13:22:00,432 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:00,454 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 13:22:00,455 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 13:22:00,455 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 13:22:00,480 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 13:22:00,480 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:22:02,783 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:02,784 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 13:22:02,784 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:02,785 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:02,786 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 13:22:02,786 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:1 [2019-11-21 13:22:02,798 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 13:22:02,799 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [459445417] [2019-11-21 13:22:02,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:22:02,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-11-21 13:22:02,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358160876] [2019-11-21 13:22:02,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 13:22:02,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:22:02,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 13:22:02,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-21 13:22:02,802 INFO L87 Difference]: Start difference. First operand 100 states and 119 transitions. Second operand 13 states. [2019-11-21 13:22:27,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:22:27,944 INFO L93 Difference]: Finished difference Result 153 states and 182 transitions. [2019-11-21 13:22:27,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 13:22:27,945 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2019-11-21 13:22:27,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:22:27,947 INFO L225 Difference]: With dead ends: 153 [2019-11-21 13:22:27,947 INFO L226 Difference]: Without dead ends: 153 [2019-11-21 13:22:27,948 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=77, Invalid=264, Unknown=1, NotChecked=0, Total=342 [2019-11-21 13:22:27,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-21 13:22:27,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 98. [2019-11-21 13:22:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-21 13:22:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 115 transitions. [2019-11-21 13:22:27,963 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 115 transitions. Word has length 26 [2019-11-21 13:22:27,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:22:27,964 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 115 transitions. [2019-11-21 13:22:27,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 13:22:27,964 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2019-11-21 13:22:27,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 13:22:27,965 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:22:27,965 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 13:22:28,169 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:22:28,170 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 13:22:28,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:22:28,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1414127169, now seen corresponding path program 1 times [2019-11-21 13:22:28,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:22:28,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [960221861] [2019-11-21 13:22:28,172 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 13:22:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:22:28,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-21 13:22:28,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:22:28,487 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 13:22:28,487 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:28,496 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:28,500 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 13:22:28,500 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:28,509 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:28,509 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:22:28,509 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 13:22:30,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 13:22:30,635 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 13:22:30,636 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:30,652 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:30,663 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:30,664 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 13:22:30,665 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:30,677 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:30,678 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 13:22:30,678 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:11 [2019-11-21 13:22:30,778 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 13:22:30,780 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 13:22:30,781 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:30,804 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:30,819 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:30,820 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 13:22:30,821 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:30,832 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:30,833 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 13:22:30,833 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:11 [2019-11-21 13:22:30,857 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 13:22:30,858 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:22:30,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:22:33,091 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:22:33,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:33,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:33,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:33,095 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:33,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:33,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:33,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:33,100 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:36,077 WARN L192 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-21 13:22:36,082 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:47,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:22:47,044 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:47,044 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 13:22:47,045 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:47,062 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:47,063 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 13:22:47,064 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:47,082 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:47,083 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 13:22:47,083 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-21 13:22:47,124 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:22:47,125 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 13:22:47,125 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:58, output treesize:23 [2019-11-21 13:22:47,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:22:47,547 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:22:47,547 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:47,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:47,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:47,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:47,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:47,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:47,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:47,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:22:53,896 WARN L192 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 36 [2019-11-21 13:22:53,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:23:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:23:01,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [960221861] [2019-11-21 13:23:01,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 13:23:01,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2019-11-21 13:23:01,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132021606] [2019-11-21 13:23:01,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 13:23:01,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:23:01,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 13:23:01,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=395, Unknown=12, NotChecked=0, Total=462 [2019-11-21 13:23:01,208 INFO L87 Difference]: Start difference. First operand 98 states and 115 transitions. Second operand 11 states. [2019-11-21 13:23:38,697 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-21 13:24:42,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:24:42,358 INFO L93 Difference]: Finished difference Result 145 states and 172 transitions. [2019-11-21 13:24:42,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-21 13:24:42,358 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2019-11-21 13:24:42,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:24:42,361 INFO L225 Difference]: With dead ends: 145 [2019-11-21 13:24:42,361 INFO L226 Difference]: Without dead ends: 145 [2019-11-21 13:24:42,362 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 51.8s TimeCoverageRelationStatistics Valid=158, Invalid=879, Unknown=19, NotChecked=0, Total=1056 [2019-11-21 13:24:42,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-11-21 13:24:42,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 80. [2019-11-21 13:24:42,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-21 13:24:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-21 13:24:42,372 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 26 [2019-11-21 13:24:42,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:24:42,372 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-21 13:24:42,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 13:24:42,373 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-21 13:24:42,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 13:24:42,374 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:24:42,374 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 13:24:42,576 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:24:42,577 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 13:24:42,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:24:42,578 INFO L82 PathProgramCache]: Analyzing trace with hash -954694802, now seen corresponding path program 1 times [2019-11-21 13:24:42,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:24:42,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1435694609] [2019-11-21 13:24:42,579 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 13:24:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:24:42,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:24:42,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:24:42,866 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 13:24:42,866 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:24:42,933 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 13:24:42,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1435694609] [2019-11-21 13:24:42,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:24:42,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-21 13:24:42,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507364617] [2019-11-21 13:24:42,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 13:24:42,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:24:42,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 13:24:42,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 13:24:42,935 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 10 states. [2019-11-21 13:24:43,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:24:43,011 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2019-11-21 13:24:43,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 13:24:43,012 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2019-11-21 13:24:43,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:24:43,013 INFO L225 Difference]: With dead ends: 95 [2019-11-21 13:24:43,013 INFO L226 Difference]: Without dead ends: 95 [2019-11-21 13:24:43,013 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-21 13:24:43,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-21 13:24:43,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2019-11-21 13:24:43,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-11-21 13:24:43,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2019-11-21 13:24:43,020 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 26 [2019-11-21 13:24:43,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:24:43,021 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2019-11-21 13:24:43,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 13:24:43,021 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2019-11-21 13:24:43,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-21 13:24:43,022 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:24:43,022 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 13:24:43,224 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:24:43,225 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 13:24:43,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:24:43,225 INFO L82 PathProgramCache]: Analyzing trace with hash 469818757, now seen corresponding path program 1 times [2019-11-21 13:24:43,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:24:43,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [752941177] [2019-11-21 13:24:43,226 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 13:24:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:24:43,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 13:24:43,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:24:43,507 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 13:24:43,507 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:24:43,516 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:24:43,517 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 13:24:43,517 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:10 [2019-11-21 13:24:43,551 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 13:24:43,551 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:24:43,553 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:24:43,553 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 13:24:43,553 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:4 [2019-11-21 13:24:43,561 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 13:24:43,561 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:24:43,671 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 13:24:43,671 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [752941177] [2019-11-21 13:24:43,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:24:43,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 13:24:43,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065031728] [2019-11-21 13:24:43,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 13:24:43,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:24:43,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 13:24:43,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-21 13:24:43,673 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 6 states. [2019-11-21 13:24:43,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:24:43,786 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2019-11-21 13:24:43,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 13:24:43,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-11-21 13:24:43,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:24:43,788 INFO L225 Difference]: With dead ends: 91 [2019-11-21 13:24:43,788 INFO L226 Difference]: Without dead ends: 91 [2019-11-21 13:24:43,789 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 13:24:43,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-21 13:24:43,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2019-11-21 13:24:43,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-21 13:24:43,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2019-11-21 13:24:43,797 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 27 [2019-11-21 13:24:43,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:24:43,797 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2019-11-21 13:24:43,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 13:24:43,798 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2019-11-21 13:24:43,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-21 13:24:43,799 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:24:43,799 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 13:24:44,011 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:24:44,012 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 13:24:44,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:24:44,013 INFO L82 PathProgramCache]: Analyzing trace with hash -40715420, now seen corresponding path program 1 times [2019-11-21 13:24:44,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:24:44,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [293749809] [2019-11-21 13:24:44,014 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 13:24:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:24:44,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 13:24:44,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:24:44,307 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:24:44,308 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 13:24:44,309 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:24:44,333 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 13:24:44,333 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:24:44,334 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 13:24:44,335 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 13:24:44,335 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:24:44,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:24:44,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:24:44,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:24:50,456 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 13:24:50,456 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:24:54,786 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:24:54,787 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 13:24:54,795 INFO L168 Benchmark]: Toolchain (without parser) took 460854.33 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 222.3 MB). Free memory was 956.3 MB in the beginning and 987.9 MB in the end (delta: -31.6 MB). Peak memory consumption was 190.7 MB. Max. memory is 11.5 GB. [2019-11-21 13:24:54,795 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 13:24:54,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 890.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -119.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-21 13:24:54,801 INFO L168 Benchmark]: Boogie Preprocessor took 123.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-21 13:24:54,805 INFO L168 Benchmark]: RCFGBuilder took 1670.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 949.4 MB in the end (delta: 120.1 MB). Peak memory consumption was 120.1 MB. Max. memory is 11.5 GB. [2019-11-21 13:24:54,808 INFO L168 Benchmark]: TraceAbstraction took 458164.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 94.9 MB). Free memory was 949.4 MB in the beginning and 987.9 MB in the end (delta: -38.5 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. [2019-11-21 13:24:54,810 INFO L335 ainManager$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 890.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -119.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 123.47 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1670.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 949.4 MB in the end (delta: 120.1 MB). Peak memory consumption was 120.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 458164.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 94.9 MB). Free memory was 949.4 MB in the beginning and 987.9 MB in the end (delta: -38.5 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...