./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test8.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_test8.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 1d89c445fb84f685368054c8df68afcdc64e8108 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 12:00:38,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:00:38,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:00:38,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:00:38,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:00:38,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:00:38,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:00:38,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:00:38,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:00:38,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:00:38,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:00:38,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:00:38,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:00:38,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:00:38,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:00:38,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:00:38,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:00:38,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:00:38,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:00:38,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:00:38,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:00:38,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:00:38,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:00:38,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:00:38,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:00:38,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:00:38,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:00:38,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:00:38,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:00:38,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:00:38,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:00:38,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:00:38,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:00:38,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:00:38,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:00:38,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:00:38,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:00:38,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:00:38,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:00:38,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:00:38,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:00:38,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 12:00:38,170 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:00:38,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:00:38,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:00:38,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:00:38,173 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:00:38,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:00:38,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:00:38,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:00:38,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:00:38,174 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:00:38,174 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:00:38,175 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:00:38,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:00:38,175 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:00:38,175 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:00:38,176 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:00:38,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:00:38,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:00:38,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:00:38,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:00:38,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:00:38,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:00:38,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:00:38,178 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:00:38,178 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:00:38,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:00:38,179 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 -> 1d89c445fb84f685368054c8df68afcdc64e8108 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:00:38,495 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:00:38,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:00:38,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:00:38,516 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:00:38,517 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:00:38,518 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2019-11-21 12:00:38,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19f957205/3fcfa4e0cedf4927b7c585e02559da56/FLAG949fa7b14 [2019-11-21 12:00:39,122 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:00:39,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2019-11-21 12:00:39,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19f957205/3fcfa4e0cedf4927b7c585e02559da56/FLAG949fa7b14 [2019-11-21 12:00:39,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19f957205/3fcfa4e0cedf4927b7c585e02559da56 [2019-11-21 12:00:39,387 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:00:39,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:00:39,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:00:39,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:00:39,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:00:39,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:00:39" (1/1) ... [2019-11-21 12:00:39,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102806cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:39, skipping insertion in model container [2019-11-21 12:00:39,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:00:39" (1/1) ... [2019-11-21 12:00:39,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:00:39,473 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:00:39,891 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:00:39,892 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:00:39,892 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:00:39,904 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:00:39,905 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:00:39,905 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:00:39,908 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:00:39,908 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:00:39,909 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:00:39,911 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:00:39,912 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:00:39,912 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:00:39,963 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:00:39,965 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:00:39,966 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:00:39,983 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:00:39,984 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [760] [2019-11-21 12:00:39,984 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:00:39,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:00:40,032 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:00:40,053 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:00:40,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:00:40,119 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:00:40,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:00:40,280 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:00:40,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:40 WrapperNode [2019-11-21 12:00:40,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:00:40,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:00:40,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:00:40,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:00:40,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:40" (1/1) ... [2019-11-21 12:00:40,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:40" (1/1) ... [2019-11-21 12:00:40,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:40" (1/1) ... [2019-11-21 12:00:40,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:40" (1/1) ... [2019-11-21 12:00:40,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:40" (1/1) ... [2019-11-21 12:00:40,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:40" (1/1) ... [2019-11-21 12:00:40,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:40" (1/1) ... [2019-11-21 12:00:40,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:00:40,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:00:40,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:00:40,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:00:40,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:00:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:00:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:00:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:00:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:00:40,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:00:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:00:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:00:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:00:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:00:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:00:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:00:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:00:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:00:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:00:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:00:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:00:40,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:00:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:00:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:00:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:00:40,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:00:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:00:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:00:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:00:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:00:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:00:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:00:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:00:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:00:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:00:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:00:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:00:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:00:40,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:00:40,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:00:40,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:00:40,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:00:40,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:00:40,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:00:40,464 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:00:40,464 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:00:40,464 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_8 [2019-11-21 12:00:40,464 INFO L138 BoogieDeclarations]: Found implementation of procedure free_8 [2019-11-21 12:00:40,464 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:00:40,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:00:40,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:00:40,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:00:40,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:00:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:00:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:00:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:00:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:00:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:00:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:00:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:00:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:00:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:00:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:00:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:00:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:00:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:00:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:00:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:00:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:00:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:00:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:00:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:00:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:00:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:00:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:00:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:00:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:00:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:00:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:00:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:00:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:00:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:00:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:00:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:00:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:00:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:00:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:00:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:00:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:00:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:00:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:00:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:00:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:00:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:00:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:00:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:00:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:00:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:00:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:00:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:00:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:00:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:00:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:00:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:00:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:00:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:00:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:00:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:00:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:00:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:00:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:00:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:00:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:00:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:00:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:00:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:00:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:00:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:00:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:00:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:00:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:00:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:00:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:00:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:00:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:00:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:00:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:00:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:00:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:00:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:00:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:00:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:00:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:00:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:00:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:00:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:00:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:00:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:00:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:00:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:00:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:00:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:00:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:00:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:00:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:00:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:00:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:00:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:00:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:00:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:00:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:00:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:00:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:00:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:00:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:00:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:00:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:00:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:00:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:00:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:00:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:00:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:00:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:00:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:00:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:00:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:00:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:00:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:00:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:00:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:00:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:00:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:00:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:00:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:00:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:00:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:00:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:00:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:00:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:00:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:00:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:00:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:00:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:00:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:00:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:00:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:00:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:00:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:00:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:00:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:00:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:00:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:00:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:00:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:00:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:00:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:00:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:00:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:00:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:00:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:00:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:00:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:00:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:00:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:00:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:00:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:00:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:00:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:00:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_8 [2019-11-21 12:00:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure free_8 [2019-11-21 12:00:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:00:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:00:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:00:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:00:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:00:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:00:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:00:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:00:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:00:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:00:41,212 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:00:41,594 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:00:41,954 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:00:41,954 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 12:00:41,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:00:41 BoogieIcfgContainer [2019-11-21 12:00:41,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:00:41,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:00:41,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:00:41,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:00:41,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:00:39" (1/3) ... [2019-11-21 12:00:41,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9ad6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:00:41, skipping insertion in model container [2019-11-21 12:00:41,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:00:40" (2/3) ... [2019-11-21 12:00:41,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9ad6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:00:41, skipping insertion in model container [2019-11-21 12:00:41,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:00:41" (3/3) ... [2019-11-21 12:00:41,966 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test8.i [2019-11-21 12:00:41,977 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:00:41,987 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-21 12:00:42,000 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-21 12:00:42,024 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:00:42,024 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:00:42,024 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:00:42,024 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:00:42,025 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:00:42,025 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:00:42,026 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:00:42,030 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:00:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2019-11-21 12:00:42,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 12:00:42,059 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:00:42,060 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:00:42,061 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:00:42,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:00:42,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1490989935, now seen corresponding path program 1 times [2019-11-21 12:00:42,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:00:42,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [360486581] [2019-11-21 12:00:42,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:00:42,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:00:42,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:00:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:42,459 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:00:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:42,571 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [360486581] [2019-11-21 12:00:42,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:00:42,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 12:00:42,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879768823] [2019-11-21 12:00:42,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:00:42,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:00:42,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:00:42,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:00:42,600 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 5 states. [2019-11-21 12:00:42,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:00:42,677 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2019-11-21 12:00:42,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:00:42,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-11-21 12:00:42,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:00:42,691 INFO L225 Difference]: With dead ends: 32 [2019-11-21 12:00:42,691 INFO L226 Difference]: Without dead ends: 29 [2019-11-21 12:00:42,693 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:00:42,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-21 12:00:42,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-21 12:00:42,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-21 12:00:42,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-21 12:00:42,737 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 18 [2019-11-21 12:00:42,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:00:42,738 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-21 12:00:42,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:00:42,739 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-21 12:00:42,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-21 12:00:42,740 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:00:42,740 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:00:42,943 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:42,944 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:00:42,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:00:42,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1023951986, now seen corresponding path program 1 times [2019-11-21 12:00:42,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:00:42,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1446338250] [2019-11-21 12:00:42,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:00:43,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:00:43,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:00:43,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:43,316 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:00:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:43,482 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1446338250] [2019-11-21 12:00:43,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:00:43,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-21 12:00:43,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626671901] [2019-11-21 12:00:43,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 12:00:43,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:00:43,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 12:00:43,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:00:43,486 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 9 states. [2019-11-21 12:00:43,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:00:43,670 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-11-21 12:00:43,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:00:43,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2019-11-21 12:00:43,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:00:43,673 INFO L225 Difference]: With dead ends: 28 [2019-11-21 12:00:43,673 INFO L226 Difference]: Without dead ends: 28 [2019-11-21 12:00:43,674 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-11-21 12:00:43,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-21 12:00:43,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-21 12:00:43,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-21 12:00:43,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-21 12:00:43,680 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 19 [2019-11-21 12:00:43,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:00:43,681 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-21 12:00:43,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 12:00:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-21 12:00:43,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:00:43,683 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:00:43,683 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:00:43,886 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:43,887 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:00:43,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:00:43,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1677740207, now seen corresponding path program 1 times [2019-11-21 12:00:43,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:00:43,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2056768050] [2019-11-21 12:00:43,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:00:44,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 12:00:44,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:00:44,268 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 12:00:44,269 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:00:44,273 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:00:44,273 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:00:44,273 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:00:44,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:44,300 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:00:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:44,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2056768050] [2019-11-21 12:00:44,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:00:44,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 12:00:44,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488680371] [2019-11-21 12:00:44,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:00:44,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:00:44,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:00:44,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:00:44,408 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2019-11-21 12:00:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:00:44,490 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2019-11-21 12:00:44,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:00:44,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 12:00:44,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:00:44,494 INFO L225 Difference]: With dead ends: 41 [2019-11-21 12:00:44,494 INFO L226 Difference]: Without dead ends: 41 [2019-11-21 12:00:44,495 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:00:44,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-21 12:00:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-11-21 12:00:44,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-21 12:00:44,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2019-11-21 12:00:44,506 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 20 [2019-11-21 12:00:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:00:44,507 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2019-11-21 12:00:44,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:00:44,507 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2019-11-21 12:00:44,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:00:44,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:00:44,509 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:00:44,720 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:44,722 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:00:44,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:00:44,723 INFO L82 PathProgramCache]: Analyzing trace with hash 820275730, now seen corresponding path program 1 times [2019-11-21 12:00:44,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:00:44,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1339546679] [2019-11-21 12:00:44,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:00:44,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:00:44,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:00:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:44,989 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:00:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:45,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1339546679] [2019-11-21 12:00:45,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:00:45,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 12:00:45,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034843300] [2019-11-21 12:00:45,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:00:45,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:00:45,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:00:45,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:00:45,061 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 6 states. [2019-11-21 12:00:45,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:00:45,140 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-11-21 12:00:45,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:00:45,141 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-21 12:00:45,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:00:45,143 INFO L225 Difference]: With dead ends: 40 [2019-11-21 12:00:45,143 INFO L226 Difference]: Without dead ends: 39 [2019-11-21 12:00:45,143 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:00:45,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-21 12:00:45,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2019-11-21 12:00:45,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-21 12:00:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2019-11-21 12:00:45,157 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 20 [2019-11-21 12:00:45,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:00:45,157 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2019-11-21 12:00:45,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:00:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2019-11-21 12:00:45,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:00:45,160 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:00:45,160 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:00:45,371 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:45,372 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:00:45,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:00:45,372 INFO L82 PathProgramCache]: Analyzing trace with hash -2124806348, now seen corresponding path program 1 times [2019-11-21 12:00:45,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:00:45,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1818628295] [2019-11-21 12:00:45,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:00:45,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:00:45,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:00:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:45,623 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:00:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:45,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1818628295] [2019-11-21 12:00:45,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:00:45,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 6 [2019-11-21 12:00:45,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511975152] [2019-11-21 12:00:45,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:00:45,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:00:45,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:00:45,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:00:45,776 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 6 states. [2019-11-21 12:00:45,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:00:45,863 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-11-21 12:00:45,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:00:45,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2019-11-21 12:00:45,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:00:45,864 INFO L225 Difference]: With dead ends: 37 [2019-11-21 12:00:45,864 INFO L226 Difference]: Without dead ends: 37 [2019-11-21 12:00:45,865 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-21 12:00:45,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-21 12:00:45,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2019-11-21 12:00:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-21 12:00:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2019-11-21 12:00:45,870 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 23 [2019-11-21 12:00:45,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:00:45,870 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2019-11-21 12:00:45,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:00:45,870 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2019-11-21 12:00:45,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:00:45,871 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:00:45,871 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:00:46,079 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:46,080 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:00:46,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:00:46,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1664602323, now seen corresponding path program 1 times [2019-11-21 12:00:46,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:00:46,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [353222153] [2019-11-21 12:00:46,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:00:46,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 12:00:46,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:00:46,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:46,319 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:00:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:46,483 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [353222153] [2019-11-21 12:00:46,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:00:46,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 12:00:46,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873634949] [2019-11-21 12:00:46,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 12:00:46,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:00:46,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 12:00:46,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:00:46,486 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 3 states. [2019-11-21 12:00:46,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:00:46,524 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2019-11-21 12:00:46,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 12:00:46,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-21 12:00:46,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:00:46,526 INFO L225 Difference]: With dead ends: 40 [2019-11-21 12:00:46,526 INFO L226 Difference]: Without dead ends: 27 [2019-11-21 12:00:46,526 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:00:46,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-21 12:00:46,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-21 12:00:46,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-21 12:00:46,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2019-11-21 12:00:46,530 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2019-11-21 12:00:46,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:00:46,530 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2019-11-21 12:00:46,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 12:00:46,530 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2019-11-21 12:00:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:00:46,531 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:00:46,531 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:00:46,736 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:46,738 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, 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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:00:46,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:00:46,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1136410223, now seen corresponding path program 1 times [2019-11-21 12:00:46,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:00:46,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [81910703] [2019-11-21 12:00:46,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:00:47,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 12:00:47,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:00:47,039 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:00:47,039 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 12:00:47,040 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:00:47,062 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 12:00:47,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:00:47,066 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:00:47,066 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 12:00:47,067 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:00:47,082 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:00:47,091 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:00:47,100 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:00:47,199 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 5 treesize of output 3 [2019-11-21 12:00:47,200 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:00:47,204 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:00:47,204 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:00:47,205 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-21 12:00:53,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:00:53,346 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:00:59,778 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:00:59,779 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 12:00:59,786 INFO L168 Benchmark]: Toolchain (without parser) took 20397.09 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.4 MB). Free memory was 952.3 MB in the beginning and 868.6 MB in the end (delta: 83.7 MB). Peak memory consumption was 308.1 MB. Max. memory is 11.5 GB. [2019-11-21 12:00:59,787 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:00:59,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 890.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-21 12:00:59,789 INFO L168 Benchmark]: Boogie Preprocessor took 113.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 12:00:59,789 INFO L168 Benchmark]: RCFGBuilder took 1561.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.2 MB in the end (delta: 103.6 MB). Peak memory consumption was 103.6 MB. Max. memory is 11.5 GB. [2019-11-21 12:00:59,790 INFO L168 Benchmark]: TraceAbstraction took 17827.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 76.0 MB). Free memory was 993.2 MB in the beginning and 868.6 MB in the end (delta: 124.5 MB). Peak memory consumption was 200.5 MB. Max. memory is 11.5 GB. [2019-11-21 12:00:59,794 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 890.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 113.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1561.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.2 MB in the end (delta: 103.6 MB). Peak memory consumption was 103.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17827.33 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 76.0 MB). Free memory was 993.2 MB in the beginning and 868.6 MB in the end (delta: 124.5 MB). Peak memory consumption was 200.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...