./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 46ca4cc321f66643bb303146077f836b6b81d33d --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 11:47:16,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 11:47:16,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 11:47:16,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 11:47:16,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 11:47:16,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 11:47:16,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 11:47:16,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 11:47:16,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 11:47:16,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 11:47:16,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 11:47:16,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 11:47:16,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 11:47:16,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 11:47:16,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 11:47:16,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 11:47:16,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 11:47:16,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 11:47:16,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 11:47:16,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 11:47:16,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 11:47:16,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 11:47:16,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 11:47:16,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 11:47:16,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 11:47:16,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 11:47:16,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 11:47:16,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 11:47:16,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 11:47:16,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 11:47:16,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 11:47:16,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 11:47:16,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 11:47:16,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 11:47:16,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 11:47:16,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 11:47:16,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 11:47:16,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 11:47:16,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 11:47:16,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 11:47:16,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 11:47:16,686 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 11:47:16,707 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 11:47:16,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 11:47:16,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 11:47:16,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 11:47:16,709 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 11:47:16,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 11:47:16,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 11:47:16,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 11:47:16,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 11:47:16,710 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 11:47:16,710 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 11:47:16,710 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 11:47:16,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 11:47:16,711 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 11:47:16,711 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:16,711 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 11:47:16,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 11:47:16,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 11:47:16,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 11:47:16,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 11:47:16,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:47:16,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 11:47:16,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 11:47:16,713 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 11:47:16,713 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 11:47:16,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 11:47:16,714 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46ca4cc321f66643bb303146077f836b6b81d33d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 11:47:17,010 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 11:47:17,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 11:47:17,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 11:47:17,028 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 11:47:17,028 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 11:47:17,029 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-21 11:47:17,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0847c1a8/8023fa2e0bc444378612191fb52317ff/FLAG16ec3e120 [2019-11-21 11:47:17,626 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 11:47:17,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-21 11:47:17,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0847c1a8/8023fa2e0bc444378612191fb52317ff/FLAG16ec3e120 [2019-11-21 11:47:17,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0847c1a8/8023fa2e0bc444378612191fb52317ff [2019-11-21 11:47:17,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 11:47:17,928 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 11:47:17,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 11:47:17,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 11:47:17,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 11:47:17,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:47:17" (1/1) ... [2019-11-21 11:47:17,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79630ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:17, skipping insertion in model container [2019-11-21 11:47:17,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:47:17" (1/1) ... [2019-11-21 11:47:17,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 11:47:18,012 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:47:18,447 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:18,448 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 11:47:18,448 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:18,461 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:18,461 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 11:47:18,461 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:18,464 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:18,464 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 11:47:18,465 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:18,469 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:18,471 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 11:47:18,471 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:18,513 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:18,513 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 11:47:18,514 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:18,523 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:18,524 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [759] [2019-11-21 11:47:18,524 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:18,525 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:47:18,525 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [761] [2019-11-21 11:47:18,526 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:47:18,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:47:18,554 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 11:47:18,567 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:47:18,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:47:18,659 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 11:47:18,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:47:18,805 INFO L205 MainTranslator]: Completed translation [2019-11-21 11:47:18,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:18 WrapperNode [2019-11-21 11:47:18,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 11:47:18,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 11:47:18,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 11:47:18,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 11:47:18,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:18" (1/1) ... [2019-11-21 11:47:18,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:18" (1/1) ... [2019-11-21 11:47:18,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:18" (1/1) ... [2019-11-21 11:47:18,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:18" (1/1) ... [2019-11-21 11:47:18,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:18" (1/1) ... [2019-11-21 11:47:18,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:18" (1/1) ... [2019-11-21 11:47:18,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:18" (1/1) ... [2019-11-21 11:47:18,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 11:47:18,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 11:47:18,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 11:47:18,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 11:47:18,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:47:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 11:47:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 11:47:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:47:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 11:47:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 11:47:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 11:47:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 11:47:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 11:47:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 11:47:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 11:47:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 11:47:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 11:47:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:47:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 11:47:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 11:47:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 11:47:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 11:47:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 11:47:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 11:47:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 11:47:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 11:47:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 11:47:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 11:47:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 11:47:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 11:47:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 11:47:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 11:47:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 11:47:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 11:47:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 11:47:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 11:47:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 11:47:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 11:47:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 11:47:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 11:47:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 11:47:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 11:47:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 11:47:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 11:47:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 11:47:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 11:47:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 11:47:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 11:47:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 11:47:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 11:47:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 11:47:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 11:47:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 11:47:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 11:47:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 11:47:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 11:47:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 11:47:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 11:47:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 11:47:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 11:47:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 11:47:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 11:47:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 11:47:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 11:47:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 11:47:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 11:47:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 11:47:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 11:47:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 11:47:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 11:47:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 11:47:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 11:47:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 11:47:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 11:47:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 11:47:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 11:47:19,058 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 11:47:19,058 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 11:47:19,058 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 11:47:19,058 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 11:47:19,058 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 11:47:19,059 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 11:47:19,059 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 11:47:19,059 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 11:47:19,059 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 11:47:19,059 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 11:47:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 11:47:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 11:47:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 11:47:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 11:47:19,060 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 11:47:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 11:47:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 11:47:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 11:47:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 11:47:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 11:47:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 11:47:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 11:47:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 11:47:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 11:47:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 11:47:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 11:47:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 11:47:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 11:47:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 11:47:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 11:47:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 11:47:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 11:47:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 11:47:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 11:47:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 11:47:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 11:47:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 11:47:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 11:47:19,070 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 11:47:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 11:47:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 11:47:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 11:47:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 11:47:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 11:47:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 11:47:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 11:47:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 11:47:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 11:47:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 11:47:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 11:47:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 11:47:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 11:47:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 11:47:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 11:47:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 11:47:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 11:47:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 11:47:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 11:47:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 11:47:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 11:47:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 11:47:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 11:47:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 11:47:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 11:47:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 11:47:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 11:47:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 11:47:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 11:47:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 11:47:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 11:47:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 11:47:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 11:47:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 11:47:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 11:47:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 11:47:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 11:47:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 11:47:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 11:47:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 11:47:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 11:47:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 11:47:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 11:47:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 11:47:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 11:47:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 11:47:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 11:47:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 11:47:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 11:47:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 11:47:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 11:47:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 11:47:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 11:47:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 11:47:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:47:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 11:47:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 11:47:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 11:47:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 11:47:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 11:47:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 11:47:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 11:47:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 11:47:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 11:47:19,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 11:47:19,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 11:47:19,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 11:47:19,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 11:47:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 11:47:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 11:47:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 11:47:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 11:47:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 11:47:19,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 11:47:19,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 11:47:19,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 11:47:19,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:47:19,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 11:47:19,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 11:47:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 11:47:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 11:47:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 11:47:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 11:47:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 11:47:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 11:47:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 11:47:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 11:47:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 11:47:19,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 11:47:19,104 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 11:47:19,104 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 11:47:19,104 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 11:47:19,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 11:47:19,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 11:47:19,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 11:47:19,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 11:47:19,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 11:47:19,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 11:47:19,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 11:47:19,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 11:47:19,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 11:47:19,765 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:47:20,138 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:47:20,464 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 11:47:20,464 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 11:47:20,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:47:20 BoogieIcfgContainer [2019-11-21 11:47:20,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 11:47:20,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 11:47:20,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 11:47:20,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 11:47:20,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:47:17" (1/3) ... [2019-11-21 11:47:20,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef41f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:47:20, skipping insertion in model container [2019-11-21 11:47:20,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:18" (2/3) ... [2019-11-21 11:47:20,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef41f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:47:20, skipping insertion in model container [2019-11-21 11:47:20,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:47:20" (3/3) ... [2019-11-21 11:47:20,474 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-21 11:47:20,485 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 11:47:20,494 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-21 11:47:20,507 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-21 11:47:20,535 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 11:47:20,536 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 11:47:20,536 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 11:47:20,536 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 11:47:20,536 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 11:47:20,536 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 11:47:20,536 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 11:47:20,537 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 11:47:20,557 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-21 11:47:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 11:47:20,568 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:20,569 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:20,570 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:20,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:20,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1299630744, now seen corresponding path program 1 times [2019-11-21 11:47:20,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:20,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1507667522] [2019-11-21 11:47:20,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:20,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:47:20,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:20,956 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:21,063 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1507667522] [2019-11-21 11:47:21,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:47:21,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:47:21,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24066204] [2019-11-21 11:47:21,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:47:21,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:21,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:47:21,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:21,096 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-21 11:47:21,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:21,167 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-21 11:47:21,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:47:21,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 11:47:21,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:21,179 INFO L225 Difference]: With dead ends: 53 [2019-11-21 11:47:21,179 INFO L226 Difference]: Without dead ends: 50 [2019-11-21 11:47:21,181 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:21,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-21 11:47:21,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-21 11:47:21,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-21 11:47:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-21 11:47:21,224 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-21 11:47:21,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:21,225 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-21 11:47:21,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:47:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-21 11:47:21,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 11:47:21,227 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:21,227 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:21,431 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:21,432 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:21,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:21,433 INFO L82 PathProgramCache]: Analyzing trace with hash 443179591, now seen corresponding path program 1 times [2019-11-21 11:47:21,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:21,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [754951967] [2019-11-21 11:47:21,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:21,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:47:21,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:21,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:21,660 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:21,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:21,710 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [754951967] [2019-11-21 11:47:21,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:47:21,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 11:47:21,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273340515] [2019-11-21 11:47:21,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 11:47:21,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:21,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 11:47:21,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:47:21,715 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-21 11:47:21,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:21,776 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-21 11:47:21,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 11:47:21,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-21 11:47:21,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:21,778 INFO L225 Difference]: With dead ends: 46 [2019-11-21 11:47:21,778 INFO L226 Difference]: Without dead ends: 43 [2019-11-21 11:47:21,779 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:47:21,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-21 11:47:21,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-21 11:47:21,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-21 11:47:21,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-21 11:47:21,787 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-21 11:47:21,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:21,787 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-21 11:47:21,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 11:47:21,787 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-21 11:47:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 11:47:21,788 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:21,788 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:21,992 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:21,993 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:21,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:21,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1246513499, now seen corresponding path program 1 times [2019-11-21 11:47:21,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:21,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [437476153] [2019-11-21 11:47:21,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:22,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:47:22,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:22,296 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:22,296 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:22,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:22,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [437476153] [2019-11-21 11:47:22,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:47:22,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:47:22,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081541548] [2019-11-21 11:47:22,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:47:22,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:22,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:47:22,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:22,335 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-21 11:47:22,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:22,348 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-21 11:47:22,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:47:22,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 11:47:22,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:22,350 INFO L225 Difference]: With dead ends: 30 [2019-11-21 11:47:22,350 INFO L226 Difference]: Without dead ends: 30 [2019-11-21 11:47:22,350 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:22,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-21 11:47:22,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-21 11:47:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-21 11:47:22,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-21 11:47:22,358 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-21 11:47:22,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:22,359 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-21 11:47:22,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:47:22,359 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-21 11:47:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-21 11:47:22,360 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:22,360 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:22,560 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:22,562 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:22,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:22,562 INFO L82 PathProgramCache]: Analyzing trace with hash -12786823, now seen corresponding path program 1 times [2019-11-21 11:47:22,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:22,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1443439375] [2019-11-21 11:47:22,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:22,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:47:22,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:22,883 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:22,970 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1443439375] [2019-11-21 11:47:22,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:47:22,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-21 11:47:22,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714952094] [2019-11-21 11:47:22,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 11:47:22,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:22,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 11:47:22,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:47:22,972 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 9 states. [2019-11-21 11:47:23,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:23,131 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-21 11:47:23,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:47:23,135 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-21 11:47:23,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:23,136 INFO L225 Difference]: With dead ends: 29 [2019-11-21 11:47:23,136 INFO L226 Difference]: Without dead ends: 29 [2019-11-21 11:47:23,137 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:47:23,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-21 11:47:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-21 11:47:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-21 11:47:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-21 11:47:23,144 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2019-11-21 11:47:23,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:23,145 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-21 11:47:23,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 11:47:23,145 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-21 11:47:23,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 11:47:23,146 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:23,146 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:23,350 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:23,351 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:23,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:23,351 INFO L82 PathProgramCache]: Analyzing trace with hash -396391139, now seen corresponding path program 1 times [2019-11-21 11:47:23,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:23,352 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [925642796] [2019-11-21 11:47:23,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:23,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:47:23,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:23,635 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:47:23,635 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:47:23,638 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:47:23,638 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:47:23,639 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:47:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:23,670 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:23,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:23,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [925642796] [2019-11-21 11:47:23,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:47:23,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:47:23,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193183037] [2019-11-21 11:47:23,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:47:23,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:23,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:47:23,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:23,720 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2019-11-21 11:47:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:23,789 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-21 11:47:23,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:47:23,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 11:47:23,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:23,790 INFO L225 Difference]: With dead ends: 35 [2019-11-21 11:47:23,790 INFO L226 Difference]: Without dead ends: 35 [2019-11-21 11:47:23,791 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-21 11:47:23,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-21 11:47:23,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-21 11:47:23,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-21 11:47:23,804 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2019-11-21 11:47:23,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:23,804 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-21 11:47:23,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:47:23,805 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-21 11:47:23,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 11:47:23,806 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:23,806 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:24,016 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:24,017 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:24,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:24,017 INFO L82 PathProgramCache]: Analyzing trace with hash 491112542, now seen corresponding path program 1 times [2019-11-21 11:47:24,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:24,019 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1905166876] [2019-11-21 11:47:24,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:24,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-21 11:47:24,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:24,254 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:24,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1905166876] [2019-11-21 11:47:24,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:47:24,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:47:24,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312766551] [2019-11-21 11:47:24,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:47:24,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:24,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:47:24,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:24,282 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2019-11-21 11:47:24,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:24,308 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2019-11-21 11:47:24,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:47:24,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 11:47:24,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:24,311 INFO L225 Difference]: With dead ends: 42 [2019-11-21 11:47:24,311 INFO L226 Difference]: Without dead ends: 42 [2019-11-21 11:47:24,311 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:24,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-21 11:47:24,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-21 11:47:24,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-21 11:47:24,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-21 11:47:24,317 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2019-11-21 11:47:24,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:24,317 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-21 11:47:24,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:47:24,317 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-21 11:47:24,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 11:47:24,318 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:24,318 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] [2019-11-21 11:47:24,518 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:24,519 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:24,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:24,520 INFO L82 PathProgramCache]: Analyzing trace with hash 596776955, now seen corresponding path program 1 times [2019-11-21 11:47:24,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:24,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [875238292] [2019-11-21 11:47:24,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:24,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:47:24,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:24,762 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:24,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:24,804 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [875238292] [2019-11-21 11:47:24,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:47:24,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-21 11:47:24,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295296612] [2019-11-21 11:47:24,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:47:24,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:24,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:47:24,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:24,806 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2019-11-21 11:47:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:24,823 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-21 11:47:24,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:47:24,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-21 11:47:24,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:24,824 INFO L225 Difference]: With dead ends: 27 [2019-11-21 11:47:24,824 INFO L226 Difference]: Without dead ends: 27 [2019-11-21 11:47:24,825 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-21 11:47:24,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-21 11:47:24,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-21 11:47:24,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-21 11:47:24,829 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2019-11-21 11:47:24,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:24,829 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-21 11:47:24,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:47:24,830 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-21 11:47:24,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 11:47:24,831 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:24,831 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] [2019-11-21 11:47:25,031 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:25,032 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:25,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:25,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1320216799, now seen corresponding path program 1 times [2019-11-21 11:47:25,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:25,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [486428824] [2019-11-21 11:47:25,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:25,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:47:25,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:25,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:25,345 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:25,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:25,435 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [486428824] [2019-11-21 11:47:25,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:47:25,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-21 11:47:25,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049528238] [2019-11-21 11:47:25,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 11:47:25,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:25,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 11:47:25,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:47:25,437 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2019-11-21 11:47:25,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:25,536 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-11-21 11:47:25,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:47:25,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-21 11:47:25,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:25,538 INFO L225 Difference]: With dead ends: 26 [2019-11-21 11:47:25,538 INFO L226 Difference]: Without dead ends: 26 [2019-11-21 11:47:25,539 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:47:25,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-21 11:47:25,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-21 11:47:25,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-21 11:47:25,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-21 11:47:25,543 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2019-11-21 11:47:25,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:25,543 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-21 11:47:25,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 11:47:25,543 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-21 11:47:25,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 11:47:25,544 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:25,544 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] [2019-11-21 11:47:25,747 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:25,748 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:25,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:25,749 INFO L82 PathProgramCache]: Analyzing trace with hash -2022951811, now seen corresponding path program 1 times [2019-11-21 11:47:25,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:25,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [55405697] [2019-11-21 11:47:25,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:26,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 11:47:26,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:26,027 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:47:26,028 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:47:26,034 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:47:26,034 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:47:26,035 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:47:26,126 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:47:26,127 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 11:47:26,129 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:47:26,149 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 11:47:26,150 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:47:26,150 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-21 11:47:26,199 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-11-21 11:47:26,200 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:47:26,214 INFO L567 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-21 11:47:26,215 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:47:26,215 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-21 11:47:26,247 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 11:47:26,247 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:26,509 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:26,509 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [55405697] [2019-11-21 11:47:26,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 11:47:26,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-21 11:47:26,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606428153] [2019-11-21 11:47:26,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 11:47:26,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:26,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 11:47:26,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-21 11:47:26,512 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2019-11-21 11:47:28,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:28,751 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-21 11:47:28,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-21 11:47:28,751 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-21 11:47:28,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:28,752 INFO L225 Difference]: With dead ends: 46 [2019-11-21 11:47:28,752 INFO L226 Difference]: Without dead ends: 46 [2019-11-21 11:47:28,752 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-21 11:47:28,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-21 11:47:28,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2019-11-21 11:47:28,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-21 11:47:28,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-11-21 11:47:28,758 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-11-21 11:47:28,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:28,758 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-11-21 11:47:28,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 11:47:28,759 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-11-21 11:47:28,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 11:47:28,759 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:28,760 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:28,964 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:28,965 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:28,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:28,965 INFO L82 PathProgramCache]: Analyzing trace with hash 2075501980, now seen corresponding path program 1 times [2019-11-21 11:47:28,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:28,966 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1907059183] [2019-11-21 11:47:28,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:29,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 11:47:29,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:29,223 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:47:29,223 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:47:29,236 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:47:29,236 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:47:29,236 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-21 11:47:29,385 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 11:47:29,386 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:47:29,404 INFO L567 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-21 11:47:29,405 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:47:29,405 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-21 11:47:29,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:29,433 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:47:29,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1907059183] [2019-11-21 11:47:29,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:47:29,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-21 11:47:29,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728360948] [2019-11-21 11:47:29,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-21 11:47:29,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:29,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-21 11:47:29,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-21 11:47:29,624 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 15 states. [2019-11-21 11:47:30,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:30,265 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2019-11-21 11:47:30,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-21 11:47:30,265 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-21 11:47:30,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:30,266 INFO L225 Difference]: With dead ends: 49 [2019-11-21 11:47:30,266 INFO L226 Difference]: Without dead ends: 49 [2019-11-21 11:47:30,267 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-11-21 11:47:30,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-21 11:47:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2019-11-21 11:47:30,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-21 11:47:30,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-11-21 11:47:30,275 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-11-21 11:47:30,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:30,275 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-11-21 11:47:30,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-21 11:47:30,276 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-11-21 11:47:30,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 11:47:30,278 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:30,278 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:47:30,479 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:30,480 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:30,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:30,481 INFO L82 PathProgramCache]: Analyzing trace with hash -669642114, now seen corresponding path program 2 times [2019-11-21 11:47:30,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:30,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [733863933] [2019-11-21 11:47:30,482 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:30,730 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 11:47:30,730 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 11:47:30,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-21 11:47:30,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:30,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:30,748 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:30,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:47:30,779 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [733863933] [2019-11-21 11:47:30,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:47:30,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-21 11:47:30,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406748249] [2019-11-21 11:47:30,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:47:30,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:47:30,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:47:30,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:30,781 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 5 states. [2019-11-21 11:47:30,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:47:30,811 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-11-21 11:47:30,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:47:30,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-21 11:47:30,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:47:30,812 INFO L225 Difference]: With dead ends: 39 [2019-11-21 11:47:30,812 INFO L226 Difference]: Without dead ends: 39 [2019-11-21 11:47:30,813 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:47:30,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-21 11:47:30,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2019-11-21 11:47:30,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-21 11:47:30,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-21 11:47:30,817 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 25 [2019-11-21 11:47:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:47:30,817 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-21 11:47:30,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:47:30,817 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-21 11:47:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 11:47:30,818 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:47:30,818 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, 1, 1] [2019-11-21 11:47:31,021 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:31,021 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:47:31,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:47:31,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1224078522, now seen corresponding path program 1 times [2019-11-21 11:47:31,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:47:31,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [960106871] [2019-11-21 11:47:31,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:47:31,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-21 11:47:31,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:47:31,316 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:47:31,316 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 11:47:31,318 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:47:31,333 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 11:47:31,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:47:31,337 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:47:31,337 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 11:47:31,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:47:31,343 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:47:31,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:47:31,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:47:34,081 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:47:34,201 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 11:47:34,201 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:47:34,414 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-11-21 11:47:38,868 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:47:38,869 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 11:47:38,877 INFO L168 Benchmark]: Toolchain (without parser) took 20949.21 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.1 MB). Free memory was 952.3 MB in the beginning and 967.1 MB in the end (delta: -14.8 MB). Peak memory consumption was 300.3 MB. Max. memory is 11.5 GB. [2019-11-21 11:47:38,878 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:47:38,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 877.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -149.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-21 11:47:38,879 INFO L168 Benchmark]: Boogie Preprocessor took 134.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 11:47:38,879 INFO L168 Benchmark]: RCFGBuilder took 1523.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.8 MB in the end (delta: 104.0 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. [2019-11-21 11:47:38,880 INFO L168 Benchmark]: TraceAbstraction took 18408.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.1 MB). Free memory was 984.2 MB in the beginning and 967.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 181.1 MB. Max. memory is 11.5 GB. [2019-11-21 11:47:38,883 INFO L335 ainManager$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 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 877.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -149.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 134.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1523.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.8 MB in the end (delta: 104.0 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18408.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.1 MB). Free memory was 984.2 MB in the beginning and 967.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 181.1 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...