./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ba3b14ef0de39694a8a8eb7210506a4804ce5885 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 11:20:33,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 11:20:33,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 11:20:33,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 11:20:33,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 11:20:33,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 11:20:33,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 11:20:33,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 11:20:33,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 11:20:33,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 11:20:33,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 11:20:33,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 11:20:33,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 11:20:33,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 11:20:33,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 11:20:33,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 11:20:33,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 11:20:33,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 11:20:33,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 11:20:33,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 11:20:33,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 11:20:33,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 11:20:33,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 11:20:33,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 11:20:33,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 11:20:33,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 11:20:33,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 11:20:33,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 11:20:33,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 11:20:33,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 11:20:33,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 11:20:33,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 11:20:33,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 11:20:33,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 11:20:33,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 11:20:33,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 11:20:33,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 11:20:33,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 11:20:33,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 11:20:33,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 11:20:33,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 11:20:33,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 11:20:33,233 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 11:20:33,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 11:20:33,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 11:20:33,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 11:20:33,235 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 11:20:33,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 11:20:33,235 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 11:20:33,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 11:20:33,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 11:20:33,236 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 11:20:33,236 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 11:20:33,236 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 11:20:33,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 11:20:33,237 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 11:20:33,237 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 11:20:33,237 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 11:20:33,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 11:20:33,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 11:20:33,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 11:20:33,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 11:20:33,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:20:33,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 11:20:33,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 11:20:33,239 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 11:20:33,239 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 11:20:33,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 11:20:33,240 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba3b14ef0de39694a8a8eb7210506a4804ce5885 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 11:20:33,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 11:20:33,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 11:20:33,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 11:20:33,572 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 11:20:33,573 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 11:20:33,574 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2019-11-21 11:20:33,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf6f4136/39722a50b7414c949b2cfb431aee3f91/FLAG1d99a81d0 [2019-11-21 11:20:34,189 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 11:20:34,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2019-11-21 11:20:34,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf6f4136/39722a50b7414c949b2cfb431aee3f91/FLAG1d99a81d0 [2019-11-21 11:20:34,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf6f4136/39722a50b7414c949b2cfb431aee3f91 [2019-11-21 11:20:34,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 11:20:34,451 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 11:20:34,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 11:20:34,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 11:20:34,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 11:20:34,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:20:34" (1/1) ... [2019-11-21 11:20:34,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c16723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:34, skipping insertion in model container [2019-11-21 11:20:34,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:20:34" (1/1) ... [2019-11-21 11:20:34,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 11:20:34,519 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:20:34,887 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:20:34,887 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 11:20:34,887 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:20:34,900 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:20:34,900 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 11:20:34,900 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:20:34,903 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:20:34,903 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 11:20:34,903 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:20:34,906 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:20:34,906 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 11:20:34,907 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:20:34,930 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:20:34,931 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 11:20:34,931 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:20:34,941 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:20:34,941 INFO L969 CHandler]: at location: C: (struct A18 **)ldv_malloc(sizeof(struct A18*)*len) [763] [2019-11-21 11:20:34,941 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:20:34,945 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:20:34,946 INFO L969 CHandler]: at location: C: (struct A18 *)ldv_malloc(sizeof(struct A18)) [769] [2019-11-21 11:20:34,946 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:20:34,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:20:34,990 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 11:20:35,010 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:20:35,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:20:35,103 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 11:20:35,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:20:35,254 INFO L205 MainTranslator]: Completed translation [2019-11-21 11:20:35,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:35 WrapperNode [2019-11-21 11:20:35,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 11:20:35,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 11:20:35,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 11:20:35,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 11:20:35,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:35" (1/1) ... [2019-11-21 11:20:35,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:35" (1/1) ... [2019-11-21 11:20:35,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:35" (1/1) ... [2019-11-21 11:20:35,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:35" (1/1) ... [2019-11-21 11:20:35,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:35" (1/1) ... [2019-11-21 11:20:35,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:35" (1/1) ... [2019-11-21 11:20:35,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:35" (1/1) ... [2019-11-21 11:20:35,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 11:20:35,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 11:20:35,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 11:20:35,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 11:20:35,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:20:35,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 11:20:35,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 11:20:35,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:20:35,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 11:20:35,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 11:20:35,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 11:20:35,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 11:20:35,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 11:20:35,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 11:20:35,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 11:20:35,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 11:20:35,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 11:20:35,432 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:20:35,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 11:20:35,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 11:20:35,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 11:20:35,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 11:20:35,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 11:20:35,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 11:20:35,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 11:20:35,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 11:20:35,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 11:20:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 11:20:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 11:20:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 11:20:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 11:20:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 11:20:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 11:20:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 11:20:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 11:20:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 11:20:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 11:20:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 11:20:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 11:20:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 11:20:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 11:20:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 11:20:35,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 11:20:35,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 11:20:35,436 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 11:20:35,436 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 11:20:35,436 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 11:20:35,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 11:20:35,436 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 11:20:35,437 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 11:20:35,437 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 11:20:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 11:20:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 11:20:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 11:20:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 11:20:35,437 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 11:20:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 11:20:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 11:20:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 11:20:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 11:20:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 11:20:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 11:20:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 11:20:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 11:20:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 11:20:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 11:20:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 11:20:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 11:20:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 11:20:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 11:20:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 11:20:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 11:20:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 11:20:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 11:20:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 11:20:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 11:20:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 11:20:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 11:20:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 11:20:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 11:20:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 11:20:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 11:20:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 11:20:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 11:20:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 11:20:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 11:20:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 11:20:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 11:20:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 11:20:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 11:20:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 11:20:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 11:20:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 11:20:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 11:20:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 11:20:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 11:20:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 11:20:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 11:20:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 11:20:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 11:20:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 11:20:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 11:20:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 11:20:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 11:20:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 11:20:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 11:20:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 11:20:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 11:20:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 11:20:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 11:20:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 11:20:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 11:20:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 11:20:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 11:20:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 11:20:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 11:20:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 11:20:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 11:20:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 11:20:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 11:20:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 11:20:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 11:20:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 11:20:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 11:20:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 11:20:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 11:20:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 11:20:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 11:20:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 11:20:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 11:20:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 11:20:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 11:20:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 11:20:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 11:20:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 11:20:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 11:20:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 11:20:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 11:20:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 11:20:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 11:20:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 11:20:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 11:20:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 11:20:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 11:20:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 11:20:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 11:20:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 11:20:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 11:20:35,464 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 11:20:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 11:20:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 11:20:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 11:20:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 11:20:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 11:20:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 11:20:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 11:20:35,465 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 11:20:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 11:20:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 11:20:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 11:20:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 11:20:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 11:20:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 11:20:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 11:20:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 11:20:35,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 11:20:35,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 11:20:35,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 11:20:35,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 11:20:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:20:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 11:20:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 11:20:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 11:20:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 11:20:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 11:20:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 11:20:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 11:20:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 11:20:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 11:20:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 11:20:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 11:20:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 11:20:35,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 11:20:35,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 11:20:35,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 11:20:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 11:20:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 11:20:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 11:20:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 11:20:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 11:20:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 11:20:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:20:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 11:20:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 11:20:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 11:20:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 11:20:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 11:20:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 11:20:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 11:20:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 11:20:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 11:20:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 11:20:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 11:20:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 11:20:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 11:20:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 11:20:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 11:20:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 11:20:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 11:20:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 11:20:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 11:20:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 11:20:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 11:20:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 11:20:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 11:20:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 11:20:36,085 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:20:36,494 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:20:36,900 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 11:20:36,901 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-21 11:20:36,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:20:36 BoogieIcfgContainer [2019-11-21 11:20:36,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 11:20:36,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 11:20:36,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 11:20:36,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 11:20:36,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:20:34" (1/3) ... [2019-11-21 11:20:36,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d4b5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:20:36, skipping insertion in model container [2019-11-21 11:20:36,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:20:35" (2/3) ... [2019-11-21 11:20:36,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d4b5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:20:36, skipping insertion in model container [2019-11-21 11:20:36,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:20:36" (3/3) ... [2019-11-21 11:20:36,911 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2019-11-21 11:20:36,921 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 11:20:36,930 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 78 error locations. [2019-11-21 11:20:36,941 INFO L249 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2019-11-21 11:20:36,963 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 11:20:36,963 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 11:20:36,964 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 11:20:36,964 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 11:20:36,964 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 11:20:36,964 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 11:20:36,965 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 11:20:36,965 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 11:20:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-11-21 11:20:36,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 11:20:36,995 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:20:36,996 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:20:36,997 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_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:20:37,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:20:37,003 INFO L82 PathProgramCache]: Analyzing trace with hash 2104391860, now seen corresponding path program 1 times [2019-11-21 11:20:37,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:20:37,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [453506683] [2019-11-21 11:20:37,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:20:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:20:37,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:20:37,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:20:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:20:37,380 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:20:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:20:37,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [453506683] [2019-11-21 11:20:37,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:20:37,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:20:37,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031225267] [2019-11-21 11:20:37,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:20:37,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:20:37,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:20:37,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:20:37,508 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 5 states. [2019-11-21 11:20:37,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:20:37,655 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2019-11-21 11:20:37,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:20:37,657 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 11:20:37,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:20:37,668 INFO L225 Difference]: With dead ends: 67 [2019-11-21 11:20:37,669 INFO L226 Difference]: Without dead ends: 64 [2019-11-21 11:20:37,671 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:20:37,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-11-21 11:20:37,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2019-11-21 11:20:37,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-21 11:20:37,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2019-11-21 11:20:37,718 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 17 [2019-11-21 11:20:37,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:20:37,718 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2019-11-21 11:20:37,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:20:37,718 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2019-11-21 11:20:37,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 11:20:37,720 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:20:37,720 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:20:37,923 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:20:37,924 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_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:20:37,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:20:37,925 INFO L82 PathProgramCache]: Analyzing trace with hash -447765101, now seen corresponding path program 1 times [2019-11-21 11:20:37,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:20:37,928 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1209427234] [2019-11-21 11:20:37,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:20:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:20:38,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:20:38,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:20:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:20:38,190 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:20:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:20:38,247 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1209427234] [2019-11-21 11:20:38,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:20:38,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 11:20:38,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224547680] [2019-11-21 11:20:38,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 11:20:38,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:20:38,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 11:20:38,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:20:38,251 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 3 states. [2019-11-21 11:20:38,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:20:38,349 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2019-11-21 11:20:38,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 11:20:38,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 11:20:38,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:20:38,351 INFO L225 Difference]: With dead ends: 64 [2019-11-21 11:20:38,352 INFO L226 Difference]: Without dead ends: 61 [2019-11-21 11:20:38,352 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:20:38,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-21 11:20:38,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2019-11-21 11:20:38,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-21 11:20:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2019-11-21 11:20:38,361 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2019-11-21 11:20:38,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:20:38,362 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2019-11-21 11:20:38,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 11:20:38,362 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2019-11-21 11:20:38,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 11:20:38,363 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:20:38,363 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:20:38,567 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:20:38,568 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_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:20:38,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:20:38,569 INFO L82 PathProgramCache]: Analyzing trace with hash 811280697, now seen corresponding path program 1 times [2019-11-21 11:20:38,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:20:38,570 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1499364788] [2019-11-21 11:20:38,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:20:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:20:38,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 11:20:38,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:20:38,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:20:38,891 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:20:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:20:38,919 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1499364788] [2019-11-21 11:20:38,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:20:38,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 11:20:38,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679671688] [2019-11-21 11:20:38,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:20:38,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:20:38,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:20:38,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:20:38,923 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 6 states. [2019-11-21 11:20:39,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:20:39,023 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2019-11-21 11:20:39,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:20:39,026 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-21 11:20:39,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:20:39,028 INFO L225 Difference]: With dead ends: 98 [2019-11-21 11:20:39,028 INFO L226 Difference]: Without dead ends: 98 [2019-11-21 11:20:39,028 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:20:39,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-21 11:20:39,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 64. [2019-11-21 11:20:39,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-11-21 11:20:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2019-11-21 11:20:39,050 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 18 [2019-11-21 11:20:39,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:20:39,050 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2019-11-21 11:20:39,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:20:39,050 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2019-11-21 11:20:39,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 11:20:39,051 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:20:39,051 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:20:39,259 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:20:39,261 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_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:20:39,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:20:39,262 INFO L82 PathProgramCache]: Analyzing trace with hash 534601915, now seen corresponding path program 1 times [2019-11-21 11:20:39,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:20:39,262 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [200057610] [2019-11-21 11:20:39,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:20:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:20:39,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 11:20:39,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:20:39,567 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:20:39,568 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:20:39,579 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:20:39,580 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:20:39,580 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:20:39,684 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:20:39,685 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-21 11:20:39,687 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:20:39,711 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 11:20:39,712 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:20:39,712 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 11:20:39,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:20:39,752 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:20:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:20:44,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [200057610] [2019-11-21 11:20:44,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:20:44,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 11:20:44,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740668736] [2019-11-21 11:20:44,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 11:20:44,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:20:44,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 11:20:44,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-21 11:20:44,196 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand 13 states. [2019-11-21 11:20:59,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:20:59,431 INFO L93 Difference]: Finished difference Result 147 states and 181 transitions. [2019-11-21 11:20:59,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 11:20:59,433 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2019-11-21 11:20:59,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:20:59,436 INFO L225 Difference]: With dead ends: 147 [2019-11-21 11:20:59,437 INFO L226 Difference]: Without dead ends: 147 [2019-11-21 11:20:59,437 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=66, Invalid=239, Unknown=1, NotChecked=0, Total=306 [2019-11-21 11:20:59,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-21 11:20:59,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 73. [2019-11-21 11:20:59,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-11-21 11:20:59,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 100 transitions. [2019-11-21 11:20:59,455 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 100 transitions. Word has length 23 [2019-11-21 11:20:59,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:20:59,456 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 100 transitions. [2019-11-21 11:20:59,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 11:20:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 100 transitions. [2019-11-21 11:20:59,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 11:20:59,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:20:59,457 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:20:59,658 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:20:59,659 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_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:20:59,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:20:59,660 INFO L82 PathProgramCache]: Analyzing trace with hash 534601916, now seen corresponding path program 1 times [2019-11-21 11:20:59,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:20:59,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2029851762] [2019-11-21 11:20:59,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:20:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:20:59,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-21 11:20:59,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:20:59,984 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:20:59,984 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:20:59,997 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:21:00,003 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:21:00,004 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:21:00,016 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:21:00,017 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:21:00,017 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 11:21:02,209 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 11:21:02,211 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 11:21:02,212 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:21:02,236 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:21:02,272 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:21:02,272 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 11:21:02,273 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:21:02,290 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:21:02,290 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:21:02,291 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-11-21 11:21:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:21:02,323 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:21:02,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:21:04,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:21:04,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:21:04,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:21:04,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:21:04,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:21:04,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:21:04,804 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:21:04,806 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:21:09,502 WARN L192 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 11:21:09,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:21:15,213 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_184|], 2=[|v_#length_144|]} [2019-11-21 11:21:15,220 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 11:21:15,221 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:21:15,232 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:21:15,234 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 11:21:15,234 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:21:15,241 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:21:15,242 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:21:15,242 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 11:21:15,815 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 11:21:15,830 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 11:21:15,831 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:21:15,850 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:21:15,853 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 11:21:15,854 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:21:15,876 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:21:15,877 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 11:21:15,877 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 11:21:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:21:15,991 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2029851762] [2019-11-21 11:21:15,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:21:15,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-21 11:21:15,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98964456] [2019-11-21 11:21:15,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 11:21:15,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:21:15,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 11:21:15,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=261, Unknown=3, NotChecked=0, Total=306 [2019-11-21 11:21:15,993 INFO L87 Difference]: Start difference. First operand 73 states and 100 transitions. Second operand 18 states. [2019-11-21 11:21:22,746 WARN L192 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 12 [2019-11-21 11:21:41,515 WARN L192 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 26 [2019-11-21 11:21:51,713 WARN L192 SmtUtils]: Spent 4.22 s on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-21 11:21:56,996 WARN L192 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2019-11-21 11:22:09,819 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 11:22:16,216 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-21 11:22:21,366 WARN L192 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-11-21 11:22:38,158 WARN L192 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-21 11:22:43,006 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse8 (bvmul c_entry_point_~i~0 (_ bv8 32)))) (let ((.cse3 (bvadd .cse8 c_entry_point_~array~0.offset (_ bv8 32))) (.cse7 (bvadd .cse8 c_entry_point_~array~0.offset))) (let ((.cse1 (bvsle (_ bv0 32) .cse7)) (.cse2 (forall ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_23|))))) (.cse0 (bvsle .cse7 .cse3))) (and .cse0 .cse1 (exists ((v_prenex_1 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (forall ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32)) (v_ldv_malloc_~size_28 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_23|))) (bvsle (bvadd (bvmul c_entry_point_~i~0 (_ bv8 32)) c_entry_point_~array~0.offset (_ bv8 32)) (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_23| v_ldv_malloc_~size_28) c_entry_point_~array~0.base)))) (or .cse2 .cse1) (= (bvadd c_entry_point_~len~0 (_ bv4294967286 32)) (_ bv0 32)) (bvsle .cse3 (select |c_#length| c_entry_point_~array~0.base)) (or .cse2 .cse0) (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse6 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv8 32)))) (let ((.cse4 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse6)) (.cse5 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse6 (_ bv8 32)))) (or (exists ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32)) (v_ldv_malloc_~size_28 (_ BitVec 32))) (and (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1)) (not (bvsle (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv8 32)) (_ bv8 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_23| v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))))) (not (bvsle (_ bv0 32) .cse4)) (bvsle .cse5 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_4)) (not (bvsle .cse4 .cse5)))))))))) is different from false [2019-11-21 11:22:43,753 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2019-11-21 11:23:06,253 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2019-11-21 11:23:14,574 WARN L192 SmtUtils]: Spent 8.16 s on a formula simplification. DAG size of input: 50 DAG size of output: 21 [2019-11-21 11:23:37,227 WARN L192 SmtUtils]: Spent 8.21 s on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-11-21 11:24:00,527 WARN L192 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 56 DAG size of output: 27 [2019-11-21 11:24:08,678 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 11:24:15,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:24:15,952 INFO L93 Difference]: Finished difference Result 217 states and 263 transitions. [2019-11-21 11:24:15,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-21 11:24:15,953 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2019-11-21 11:24:15,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:24:15,959 INFO L225 Difference]: With dead ends: 217 [2019-11-21 11:24:15,959 INFO L226 Difference]: Without dead ends: 217 [2019-11-21 11:24:15,960 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 77.2s TimeCoverageRelationStatistics Valid=214, Invalid=1110, Unknown=12, NotChecked=70, Total=1406 [2019-11-21 11:24:15,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-11-21 11:24:15,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 89. [2019-11-21 11:24:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-11-21 11:24:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 121 transitions. [2019-11-21 11:24:15,976 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 121 transitions. Word has length 23 [2019-11-21 11:24:15,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:24:15,977 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 121 transitions. [2019-11-21 11:24:15,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 11:24:15,977 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2019-11-21 11:24:15,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 11:24:15,978 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:24:15,978 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:24:16,179 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:24:16,180 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_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:24:16,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:24:16,181 INFO L82 PathProgramCache]: Analyzing trace with hash 29043290, now seen corresponding path program 1 times [2019-11-21 11:24:16,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:24:16,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [771494745] [2019-11-21 11:24:16,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:24:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:24:16,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:24:16,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:24:16,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:24:16,453 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:24:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:24:16,503 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [771494745] [2019-11-21 11:24:16,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 11:24:16,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-21 11:24:16,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002378543] [2019-11-21 11:24:16,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:24:16,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:24:16,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:24:16,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:24:16,505 INFO L87 Difference]: Start difference. First operand 89 states and 121 transitions. Second operand 5 states. [2019-11-21 11:24:16,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:24:16,548 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2019-11-21 11:24:16,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:24:16,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-21 11:24:16,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:24:16,549 INFO L225 Difference]: With dead ends: 64 [2019-11-21 11:24:16,550 INFO L226 Difference]: Without dead ends: 62 [2019-11-21 11:24:16,550 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:24:16,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-11-21 11:24:16,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-11-21 11:24:16,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-21 11:24:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2019-11-21 11:24:16,560 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 23 [2019-11-21 11:24:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:24:16,560 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2019-11-21 11:24:16,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:24:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2019-11-21 11:24:16,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 11:24:16,561 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:24:16,561 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:24:16,764 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:24:16,765 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_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:24:16,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:24:16,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1643676217, now seen corresponding path program 1 times [2019-11-21 11:24:16,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:24:16,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1831463768] [2019-11-21 11:24:16,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:24:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:24:16,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:24:16,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:24:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:24:17,011 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:24:17,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 11:24:17,045 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1831463768] [2019-11-21 11:24:17,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:24:17,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:24:17,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993951537] [2019-11-21 11:24:17,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:24:17,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:24:17,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:24:17,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:24:17,046 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand 5 states. [2019-11-21 11:24:17,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:24:17,094 INFO L93 Difference]: Finished difference Result 91 states and 111 transitions. [2019-11-21 11:24:17,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:24:17,094 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-21 11:24:17,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:24:17,095 INFO L225 Difference]: With dead ends: 91 [2019-11-21 11:24:17,096 INFO L226 Difference]: Without dead ends: 91 [2019-11-21 11:24:17,096 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:24:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-21 11:24:17,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 66. [2019-11-21 11:24:17,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-21 11:24:17,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 80 transitions. [2019-11-21 11:24:17,102 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 80 transitions. Word has length 25 [2019-11-21 11:24:17,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:24:17,103 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 80 transitions. [2019-11-21 11:24:17,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:24:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 80 transitions. [2019-11-21 11:24:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 11:24:17,104 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:24:17,104 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:24:17,313 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:24:17,314 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:24:17,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:24:17,315 INFO L82 PathProgramCache]: Analyzing trace with hash 99134118, now seen corresponding path program 1 times [2019-11-21 11:24:17,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:24:17,316 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2100292107] [2019-11-21 11:24:17,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:24:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:24:17,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 11:24:17,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:24:17,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 11:24:17,600 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:24:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 11:24:17,634 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2100292107] [2019-11-21 11:24:17,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:24:17,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 11:24:17,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526561166] [2019-11-21 11:24:17,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:24:17,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:24:17,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:24:17,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:24:17,636 INFO L87 Difference]: Start difference. First operand 66 states and 80 transitions. Second operand 6 states. [2019-11-21 11:24:17,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:24:17,702 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2019-11-21 11:24:17,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:24:17,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-21 11:24:17,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:24:17,705 INFO L225 Difference]: With dead ends: 70 [2019-11-21 11:24:17,705 INFO L226 Difference]: Without dead ends: 70 [2019-11-21 11:24:17,705 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:24:17,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-11-21 11:24:17,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2019-11-21 11:24:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-21 11:24:17,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2019-11-21 11:24:17,710 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 25 [2019-11-21 11:24:17,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:24:17,711 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2019-11-21 11:24:17,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:24:17,711 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2019-11-21 11:24:17,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-21 11:24:17,712 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:24:17,712 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:24:17,914 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:24:17,916 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:24:17,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:24:17,916 INFO L82 PathProgramCache]: Analyzing trace with hash 778572363, now seen corresponding path program 1 times [2019-11-21 11:24:17,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:24:17,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1511241165] [2019-11-21 11:24:17,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:24:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 11:24:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 11:24:18,286 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-21 11:24:18,286 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-21 11:24:18,491 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:24:18,507 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-21 11:24:18,513 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-21 11:24:18,513 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-21 11:24:18,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 11:24:18 BoogieIcfgContainer [2019-11-21 11:24:18,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-21 11:24:18,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-21 11:24:18,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-21 11:24:18,525 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-21 11:24:18,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:20:36" (3/4) ... [2019-11-21 11:24:18,529 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-21 11:24:18,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-21 11:24:18,530 INFO L168 Benchmark]: Toolchain (without parser) took 224079.40 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 331.9 MB). Free memory was 951.0 MB in the beginning and 936.3 MB in the end (delta: 14.6 MB). Peak memory consumption was 346.5 MB. Max. memory is 11.5 GB. [2019-11-21 11:24:18,531 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:24:18,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-21 11:24:18,532 INFO L168 Benchmark]: Boogie Preprocessor took 107.28 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-21 11:24:18,532 INFO L168 Benchmark]: RCFGBuilder took 1540.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.7 MB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 11.5 GB. [2019-11-21 11:24:18,533 INFO L168 Benchmark]: TraceAbstraction took 221620.23 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.3 MB). Free memory was 983.7 MB in the beginning and 945.6 MB in the end (delta: 38.1 MB). Peak memory consumption was 227.4 MB. Max. memory is 11.5 GB. [2019-11-21 11:24:18,534 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 1.4 GB. Free memory was 945.6 MB in the beginning and 936.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-11-21 11:24:18,536 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 801.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 107.28 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1540.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.7 MB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 221620.23 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.3 MB). Free memory was 983.7 MB in the beginning and 945.6 MB in the end (delta: 38.1 MB). Peak memory consumption was 227.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.52 ms. Allocated memory is still 1.4 GB. Free memory was 945.6 MB in the beginning and 936.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 779]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 779. Possible FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={1108378657:0}] [L780] CALL entry_point() VAL [ldv_global_msg_list={1108378657:0}] [L762] int len = 10; VAL [ldv_global_msg_list={1108378657:0}, len=10] [L763] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=80, ldv_global_msg_list={1108378657:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=80, \result={-1039104991:0}, ldv_global_msg_list={1108378657:0}, malloc(size)={-1039104991:0}, size=80] [L763] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={1108378657:0}, ldv_malloc(sizeof(struct A18*)*len)={-1039104991:0}, len=10] [L763] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L764] struct A18 *p; [L765] int i=0; [L766] int j; VAL [array={-1039104991:0}, i=0, ldv_global_msg_list={1108378657:0}, len=10] [L767] COND FALSE !(!array) VAL [array={-1039104991:0}, i=0, ldv_global_msg_list={1108378657:0}, len=10] [L768] COND TRUE i=0) VAL [array={-1039104991:0}, i=0, j=4294967295, ldv_global_msg_list={1108378657:0}, len=10, p={0:0}] [L780] RET entry_point() VAL [ldv_global_msg_list={1108378657:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 345 locations, 78 error locations. Result: UNSAFE, OverallTime: 221.5s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 195.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 413 SDtfs, 828 SDslu, 1453 SDs, 0 SdLazy, 1095 SolverSat, 161 SolverUnsat, 67 SolverUnknown, 0 SolverNotchecked, 132.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 363 GetRequests, 285 SyntacticMatches, 5 SemanticMatches, 73 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 81.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 296 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 21.2s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 326 ConstructedInterpolants, 28 QuantifiedInterpolants, 38682 SizeOfPredicates, 20 NumberOfNonLiveVariables, 715 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 28/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...