./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c58b8bb1c431fc65db9a6b9db641f8c92b59fe24 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 12:59:33,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:59:33,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:59:33,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:59:33,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:59:33,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:59:33,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:59:33,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:59:33,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:59:33,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:59:33,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:59:33,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:59:33,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:59:33,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:59:33,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:59:33,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:59:33,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:59:33,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:59:33,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:59:33,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:59:33,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:59:33,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:59:33,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:59:33,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:59:33,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:59:33,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:59:33,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:59:33,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:59:33,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:59:33,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:59:33,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:59:33,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:59:33,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:59:33,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:59:33,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:59:33,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:59:33,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:59:33,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:59:33,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:59:33,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:59:33,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:59:33,998 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 12:59:34,014 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:59:34,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:59:34,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:59:34,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:59:34,019 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:59:34,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:59:34,020 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 12:59:34,020 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:59:34,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:59:34,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 12:59:34,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:59:34,021 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:59:34,021 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:59:34,021 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:59:34,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:59:34,022 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:59:34,022 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:34,022 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 12:59:34,022 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:59:34,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:59:34,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:59:34,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:59:34,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:59:34,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:59:34,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:59:34,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:59:34,024 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:59:34,025 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:59:34,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:59:34,025 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c58b8bb1c431fc65db9a6b9db641f8c92b59fe24 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:59:34,331 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:59:34,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:59:34,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:59:34,350 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:59:34,351 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:59:34,351 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2019-11-21 12:59:34,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9d22b10d/bc026d5ac1a74593a020d2967510fc8a/FLAGd482b12bc [2019-11-21 12:59:34,984 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:59:34,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2019-11-21 12:59:35,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9d22b10d/bc026d5ac1a74593a020d2967510fc8a/FLAGd482b12bc [2019-11-21 12:59:35,277 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9d22b10d/bc026d5ac1a74593a020d2967510fc8a [2019-11-21 12:59:35,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:59:35,281 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:59:35,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:59:35,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:59:35,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:59:35,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:59:35" (1/1) ... [2019-11-21 12:59:35,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425552f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:35, skipping insertion in model container [2019-11-21 12:59:35,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:59:35" (1/1) ... [2019-11-21 12:59:35,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:59:35,342 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:59:35,771 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:59:35,772 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:59:35,772 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:35,797 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:59:35,798 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:59:35,799 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:35,803 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:59:35,803 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:59:35,804 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:35,808 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:59:35,809 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:59:35,809 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:35,852 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:59:35,853 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:59:35,853 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:35,873 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:59:35,873 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [759] [2019-11-21 12:59:35,874 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:59:35,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:59:35,909 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:59:35,921 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:59:36,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:59:36,042 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:59:36,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:59:36,209 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:59:36,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:36 WrapperNode [2019-11-21 12:59:36,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:59:36,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:59:36,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:59:36,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:59:36,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:36" (1/1) ... [2019-11-21 12:59:36,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:36" (1/1) ... [2019-11-21 12:59:36,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:36" (1/1) ... [2019-11-21 12:59:36,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:36" (1/1) ... [2019-11-21 12:59:36,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:36" (1/1) ... [2019-11-21 12:59:36,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:36" (1/1) ... [2019-11-21 12:59:36,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:36" (1/1) ... [2019-11-21 12:59:36,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:59:36,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:59:36,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:59:36,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:59:36,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:59:36,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:59:36,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:59:36,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:59:36,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:59:36,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:59:36,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:59:36,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:59:36,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:59:36,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:59:36,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:59:36,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:59:36,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:59:36,391 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:59:36,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:59:36,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:59:36,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:59:36,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:59:36,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:59:36,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:59:36,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:59:36,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:59:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:59:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:59:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:59:36,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:59:36,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:59:36,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:59:36,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:59:36,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:59:36,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:59:36,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:59:36,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:59:36,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:59:36,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:59:36,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:59:36,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:59:36,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:59:36,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:59:36,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:59:36,397 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:59:36,397 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:59:36,398 INFO L138 BoogieDeclarations]: Found implementation of procedure h_safe [2019-11-21 12:59:36,398 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:59:36,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:59:36,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:59:36,398 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:59:36,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:59:36,399 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:59:36,399 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:59:36,399 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:59:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:59:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:59:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:59:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:59:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:59:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:59:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:59:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:59:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:59:36,401 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:59:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:59:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:59:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:59:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:59:36,402 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:59:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:59:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:59:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:59:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:59:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:59:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:59:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:59:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:59:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:59:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:59:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:59:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:59:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:59:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:59:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:59:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:59:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:59:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:59:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:59:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:59:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:59:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:59:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:59:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:59:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:59:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:59:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:59:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:59:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:59:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:59:36,409 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:59:36,409 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:59:36,409 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:59:36,409 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:59:36,409 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:59:36,410 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:59:36,410 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:59:36,410 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:59:36,410 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:59:36,410 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:59:36,411 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:59:36,411 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:59:36,411 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:59:36,411 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:59:36,411 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:59:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:59:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:59:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:59:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:59:36,412 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:59:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:59:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:59:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:59:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:59:36,413 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:59:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:59:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:59:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:59:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:59:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:59:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:59:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:59:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:59:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:59:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:59:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:59:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:59:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:59:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:59:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:59:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:59:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:59:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:59:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:59:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:59:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:59:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:59:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:59:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:59:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:59:36,418 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:59:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:59:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:59:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:59:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:59:36,419 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:59:36,420 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:59:36,420 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:59:36,420 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:59:36,420 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:59:36,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:59:36,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:59:36,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:59:36,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:59:36,421 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:59:36,421 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:59:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:59:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:59:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:59:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:59:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:59:36,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:59:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:59:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:59:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:59:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:59:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:59:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:59:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:59:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:59:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:59:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:59:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:59:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:59:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:59:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:59:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:59:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:59:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:59:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:59:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:59:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:59:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:59:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:59:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:59:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:59:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:59:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:59:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:59:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:59:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:59:36,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:59:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:59:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:59:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:59:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:59:36,429 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:59:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure h_safe [2019-11-21 12:59:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:59:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:59:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:59:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:59:36,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:59:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:59:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:59:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:59:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:59:36,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:59:37,067 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:59:37,530 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:59:37,935 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:59:37,936 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 12:59:37,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:59:37 BoogieIcfgContainer [2019-11-21 12:59:37,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:59:37,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:59:37,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:59:37,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:59:37,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:59:35" (1/3) ... [2019-11-21 12:59:37,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a09dec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:59:37, skipping insertion in model container [2019-11-21 12:59:37,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:59:36" (2/3) ... [2019-11-21 12:59:37,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a09dec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:59:37, skipping insertion in model container [2019-11-21 12:59:37,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:59:37" (3/3) ... [2019-11-21 12:59:37,948 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2019-11-21 12:59:37,958 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:59:37,968 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-21 12:59:37,980 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-21 12:59:37,999 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:59:37,999 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:59:37,999 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:59:37,999 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:59:38,000 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:59:38,000 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:59:38,000 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:59:38,000 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:59:38,022 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2019-11-21 12:59:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 12:59:38,032 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:59:38,034 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:59:38,035 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:59:38,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:59:38,042 INFO L82 PathProgramCache]: Analyzing trace with hash 362301239, now seen corresponding path program 1 times [2019-11-21 12:59:38,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:59:38,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1013875953] [2019-11-21 12:59:38,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:59:38,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 12:59:38,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:59:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:38,451 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:59:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:38,615 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1013875953] [2019-11-21 12:59:38,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:59:38,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 12:59:38,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750812831] [2019-11-21 12:59:38,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 12:59:38,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:59:38,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 12:59:38,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:59:38,655 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2019-11-21 12:59:38,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:59:38,865 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-21 12:59:38,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 12:59:38,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-11-21 12:59:38,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:59:38,893 INFO L225 Difference]: With dead ends: 29 [2019-11-21 12:59:38,893 INFO L226 Difference]: Without dead ends: 26 [2019-11-21 12:59:38,897 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:59:38,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-21 12:59:38,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-21 12:59:38,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-21 12:59:38,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-21 12:59:38,952 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2019-11-21 12:59:38,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:59:38,953 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-21 12:59:38,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 12:59:38,954 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-21 12:59:38,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-21 12:59:38,955 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:59:38,955 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:59:39,159 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:39,159 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:59:39,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:59:39,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1653563109, now seen corresponding path program 1 times [2019-11-21 12:59:39,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:59:39,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2146474438] [2019-11-21 12:59:39,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:59:39,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-21 12:59:39,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:59:39,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:39,607 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:59:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:39,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2146474438] [2019-11-21 12:59:39,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:59:39,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2019-11-21 12:59:39,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205609602] [2019-11-21 12:59:39,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 12:59:39,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:59:39,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 12:59:39,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 12:59:39,850 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 13 states. [2019-11-21 12:59:40,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:59:40,091 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-11-21 12:59:40,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-21 12:59:40,092 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2019-11-21 12:59:40,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:59:40,093 INFO L225 Difference]: With dead ends: 25 [2019-11-21 12:59:40,093 INFO L226 Difference]: Without dead ends: 25 [2019-11-21 12:59:40,095 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 12:59:40,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-21 12:59:40,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-21 12:59:40,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-21 12:59:40,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-21 12:59:40,106 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 19 [2019-11-21 12:59:40,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:59:40,107 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-21 12:59:40,107 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 12:59:40,107 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-21 12:59:40,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:59:40,110 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:59:40,110 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:59:40,311 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:40,311 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:59:40,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:59:40,312 INFO L82 PathProgramCache]: Analyzing trace with hash 279151545, now seen corresponding path program 1 times [2019-11-21 12:59:40,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:59:40,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1472564722] [2019-11-21 12:59:40,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:59:40,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 12:59:40,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:59:40,636 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 12:59:40,636 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:59:40,640 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:59:40,641 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:59:40,641 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:59:40,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:40,693 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:59:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:40,819 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1472564722] [2019-11-21 12:59:40,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:59:40,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 12:59:40,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953324240] [2019-11-21 12:59:40,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 12:59:40,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:59:40,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 12:59:40,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:59:40,820 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2019-11-21 12:59:40,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:59:40,924 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2019-11-21 12:59:40,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 12:59:40,926 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-21 12:59:40,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:59:40,931 INFO L225 Difference]: With dead ends: 37 [2019-11-21 12:59:40,931 INFO L226 Difference]: Without dead ends: 37 [2019-11-21 12:59:40,932 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:59:40,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-21 12:59:40,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-21 12:59:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-21 12:59:40,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-21 12:59:40,941 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 20 [2019-11-21 12:59:40,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:59:40,942 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-21 12:59:40,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 12:59:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-21 12:59:40,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:59:40,943 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:59:40,943 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:59:41,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:41,145 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:59:41,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:59:41,147 INFO L82 PathProgramCache]: Analyzing trace with hash 279399091, now seen corresponding path program 1 times [2019-11-21 12:59:41,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:59:41,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1129542252] [2019-11-21 12:59:41,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:59:41,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 12:59:41,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:59:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:41,400 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:59:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:41,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1129542252] [2019-11-21 12:59:41,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:59:41,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-21 12:59:41,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070721798] [2019-11-21 12:59:41,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 12:59:41,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:59:41,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 12:59:41,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:59:41,547 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 7 states. [2019-11-21 12:59:41,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:59:41,602 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-11-21 12:59:41,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 12:59:41,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-21 12:59:41,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:59:41,604 INFO L225 Difference]: With dead ends: 37 [2019-11-21 12:59:41,604 INFO L226 Difference]: Without dead ends: 37 [2019-11-21 12:59:41,604 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:59:41,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-21 12:59:41,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-21 12:59:41,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-21 12:59:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-11-21 12:59:41,610 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 20 [2019-11-21 12:59:41,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:59:41,611 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-11-21 12:59:41,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 12:59:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-11-21 12:59:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:59:41,612 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:59:41,612 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:59:41,816 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:41,817 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:59:41,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:59:41,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1517799814, now seen corresponding path program 1 times [2019-11-21 12:59:41,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:59:41,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1712764730] [2019-11-21 12:59:41,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:59:42,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 12:59:42,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:59:42,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:42,079 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:59:42,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:42,141 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1712764730] [2019-11-21 12:59:42,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:59:42,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-21 12:59:42,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811386029] [2019-11-21 12:59:42,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 12:59:42,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:59:42,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 12:59:42,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-21 12:59:42,143 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2019-11-21 12:59:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:59:42,208 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-11-21 12:59:42,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-21 12:59:42,208 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-11-21 12:59:42,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:59:42,209 INFO L225 Difference]: With dead ends: 34 [2019-11-21 12:59:42,209 INFO L226 Difference]: Without dead ends: 33 [2019-11-21 12:59:42,210 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:59:42,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-21 12:59:42,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-11-21 12:59:42,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-21 12:59:42,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-11-21 12:59:42,215 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 20 [2019-11-21 12:59:42,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:59:42,215 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2019-11-21 12:59:42,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 12:59:42,215 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-11-21 12:59:42,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:59:42,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:59:42,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:59:42,417 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:42,417 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:59:42,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:59:42,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1517552268, now seen corresponding path program 1 times [2019-11-21 12:59:42,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:59:42,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [389961927] [2019-11-21 12:59:42,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:59:42,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-21 12:59:42,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:59:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:42,682 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:59:42,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:42,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [389961927] [2019-11-21 12:59:42,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:59:42,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 12:59:42,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379690686] [2019-11-21 12:59:42,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 12:59:42,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:59:42,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 12:59:42,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:59:42,788 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 3 states. [2019-11-21 12:59:42,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:59:42,814 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2019-11-21 12:59:42,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 12:59:42,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-21 12:59:42,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:59:42,815 INFO L225 Difference]: With dead ends: 34 [2019-11-21 12:59:42,816 INFO L226 Difference]: Without dead ends: 24 [2019-11-21 12:59:42,816 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:59:42,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-21 12:59:42,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-21 12:59:42,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-21 12:59:42,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2019-11-21 12:59:42,820 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 20 [2019-11-21 12:59:42,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:59:42,821 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2019-11-21 12:59:42,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 12:59:42,821 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2019-11-21 12:59:42,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:59:42,822 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:59:42,822 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:59:43,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:43,027 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:59:43,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:59:43,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1147366747, now seen corresponding path program 1 times [2019-11-21 12:59:43,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:59:43,028 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [416373067] [2019-11-21 12:59:43,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:59:43,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 12:59:43,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:59:43,318 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:59:43,319 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 12:59:43,320 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:59:43,341 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 12:59:43,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:59:43,346 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:59:43,346 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 12:59:43,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:59:43,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:59:43,373 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:59:43,385 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:59:49,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:59:49,620 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:59:54,065 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:59:54,067 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 12:59:54,074 INFO L168 Benchmark]: Toolchain (without parser) took 18792.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 220.7 MB). Free memory was 946.9 MB in the beginning and 864.0 MB in the end (delta: 82.9 MB). Peak memory consumption was 303.6 MB. Max. memory is 11.5 GB. [2019-11-21 12:59:54,075 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:59:54,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 928.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 12:59:54,076 INFO L168 Benchmark]: Boogie Preprocessor took 107.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 12:59:54,077 INFO L168 Benchmark]: RCFGBuilder took 1619.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.2 MB in the end (delta: 103.6 MB). Peak memory consumption was 103.6 MB. Max. memory is 11.5 GB. [2019-11-21 12:59:54,078 INFO L168 Benchmark]: TraceAbstraction took 16133.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 992.2 MB in the beginning and 864.0 MB in the end (delta: 128.1 MB). Peak memory consumption was 201.5 MB. Max. memory is 11.5 GB. [2019-11-21 12:59:54,082 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 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 928.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 107.35 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 1619.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.2 MB in the end (delta: 103.6 MB). Peak memory consumption was 103.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16133.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 992.2 MB in the beginning and 864.0 MB in the end (delta: 128.1 MB). Peak memory consumption was 201.5 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...