./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba3b14ef0de39694a8a8eb7210506a4804ce5885 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 12:40:25,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:40:25,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:40:25,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:40:25,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:40:25,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:40:25,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:40:25,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:40:25,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:40:25,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:40:25,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:40:25,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:40:25,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:40:25,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:40:25,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:40:25,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:40:25,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:40:25,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:40:25,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:40:25,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:40:25,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:40:25,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:40:25,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:40:25,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:40:25,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:40:25,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:40:25,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:40:25,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:40:25,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:40:25,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:40:25,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:40:25,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:40:25,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:40:25,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:40:25,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:40:25,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:40:25,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:40:25,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:40:25,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:40:25,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:40:25,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:40:25,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 12:40:25,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:40:25,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:40:25,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:40:25,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:40:25,240 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:40:25,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:40:25,240 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 12:40:25,240 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:40:25,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:40:25,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 12:40:25,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:40:25,241 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:40:25,242 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:40:25,246 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:40:25,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:40:25,247 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:40:25,247 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:40:25,247 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 12:40:25,247 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:40:25,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:40:25,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:40:25,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:40:25,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:40:25,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:40:25,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:40:25,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:40:25,250 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:40:25,250 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:40:25,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:40:25,250 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba3b14ef0de39694a8a8eb7210506a4804ce5885 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:40:25,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:40:25,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:40:25,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:40:25,613 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:40:25,614 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:40:25,614 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2019-11-21 12:40:25,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2283e6152/2f224e52191c477d8f4937bf07476c4b/FLAG86a5142f7 [2019-11-21 12:40:26,189 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:40:26,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2019-11-21 12:40:26,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2283e6152/2f224e52191c477d8f4937bf07476c4b/FLAG86a5142f7 [2019-11-21 12:40:26,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2283e6152/2f224e52191c477d8f4937bf07476c4b [2019-11-21 12:40:26,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:40:26,521 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:40:26,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:40:26,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:40:26,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:40:26,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:40:26" (1/1) ... [2019-11-21 12:40:26,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d183b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:26, skipping insertion in model container [2019-11-21 12:40:26,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:40:26" (1/1) ... [2019-11-21 12:40:26,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:40:26,611 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:40:27,084 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 12:40:27,085 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:40:27,086 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:40:27,098 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 12:40:27,099 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:40:27,099 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:40:27,102 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 12:40:27,102 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:40:27,103 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:40:27,105 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 12:40:27,106 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:40:27,106 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:40:27,148 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 12:40:27,148 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:40:27,149 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:40:27,164 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 12:40:27,165 INFO L969 CHandler]: at location: C: (struct A18 **)ldv_malloc(sizeof(struct A18*)*len) [763] [2019-11-21 12:40:27,165 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:40:27,167 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 12:40:27,167 INFO L969 CHandler]: at location: C: (struct A18 *)ldv_malloc(sizeof(struct A18)) [769] [2019-11-21 12:40:27,168 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:40:27,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:40:27,194 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:40:27,212 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:40:27,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:40:27,316 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:40:27,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:40:27,490 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:40:27,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:27 WrapperNode [2019-11-21 12:40:27,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:40:27,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:40:27,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:40:27,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:40:27,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:27" (1/1) ... [2019-11-21 12:40:27,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:27" (1/1) ... [2019-11-21 12:40:27,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:27" (1/1) ... [2019-11-21 12:40:27,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:27" (1/1) ... [2019-11-21 12:40:27,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:27" (1/1) ... [2019-11-21 12:40:27,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:27" (1/1) ... [2019-11-21 12:40:27,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:27" (1/1) ... [2019-11-21 12:40:27,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:40:27,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:40:27,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:40:27,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:40:27,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:27" (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 12:40:27,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:40:27,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:40:27,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:40:27,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:40:27,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:40:27,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:40:27,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:40:27,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:40:27,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:40:27,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:40:27,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:40:27,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:40:27,684 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:40:27,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:40:27,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:40:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:40:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:40:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:40:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:40:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:40:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:40:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:40:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:40:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:40:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:40:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:40:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:40:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:40:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:40:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:40:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:40:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:40:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:40:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:40:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:40:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:40:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:40:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:40:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:40:27,689 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:40:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:40:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:40:27,690 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:40:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:40:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:40:27,691 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:40:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:40:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:40:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:40:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:40:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:40:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:40:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:40:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:40:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:40:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:40:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:40:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:40:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:40:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:40:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:40:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:40:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:40:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:40:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:40:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:40:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:40:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:40:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:40:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:40:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:40:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:40:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:40:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:40:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:40:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:40:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:40:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:40:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:40:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:40:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:40:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:40:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:40:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:40:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:40:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:40:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:40:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:40:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:40:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:40:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:40:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:40:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:40:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:40:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:40:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:40:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:40:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:40:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:40:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:40:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:40:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:40:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:40:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:40:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:40:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:40:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:40:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:40:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:40:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:40:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:40:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:40:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:40:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:40:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:40:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:40:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:40:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:40:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:40:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:40:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:40:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:40:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:40:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:40:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:40:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:40:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:40:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:40:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:40:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:40:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:40:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:40:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:40:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:40:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:40:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:40:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:40:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:40:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:40:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:40:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:40:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:40:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:40:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:40:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:40:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:40:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:40:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:40:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:40:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:40:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:40:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:40:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:40:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:40:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:40:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:40:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:40:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:40:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:40:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:40:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:40:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:40:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:40:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:40:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:40:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:40:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:40:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:40:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:40:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:40:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:40:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:40:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:40:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:40:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:40:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:40:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:40:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:40:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:40:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:40:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:40:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:40:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:40:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:40:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:40:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:40:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:40:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:40:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:40:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:40:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:40:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:40:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:40:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:40:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:40:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:40:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:40:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:40:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:40:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:40:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:40:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:40:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:40:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:40:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:40:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:40:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:40:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:40:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:40:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:40:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:40:28,350 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:40:28,768 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:40:29,187 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:40:29,187 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-21 12:40:29,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:40:29 BoogieIcfgContainer [2019-11-21 12:40:29,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:40:29,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:40:29,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:40:29,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:40:29,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:40:26" (1/3) ... [2019-11-21 12:40:29,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a0a3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:40:29, skipping insertion in model container [2019-11-21 12:40:29,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:40:27" (2/3) ... [2019-11-21 12:40:29,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a0a3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:40:29, skipping insertion in model container [2019-11-21 12:40:29,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:40:29" (3/3) ... [2019-11-21 12:40:29,197 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1.i [2019-11-21 12:40:29,205 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:40:29,213 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 78 error locations. [2019-11-21 12:40:29,222 INFO L249 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2019-11-21 12:40:29,241 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:40:29,241 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:40:29,241 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:40:29,241 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:40:29,242 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:40:29,242 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:40:29,242 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:40:29,242 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:40:29,261 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-11-21 12:40:29,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 12:40:29,272 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:40:29,273 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:40:29,274 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:40:29,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:40:29,281 INFO L82 PathProgramCache]: Analyzing trace with hash 2104391860, now seen corresponding path program 1 times [2019-11-21 12:40:29,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:40:29,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1969100614] [2019-11-21 12:40:29,294 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 12:40:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:40:29,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:40:29,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:40:29,667 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 12:40:29,671 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:40:29,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:40:29,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1969100614] [2019-11-21 12:40:29,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:40:29,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:40:29,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140739208] [2019-11-21 12:40:29,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:40:29,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:40:29,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:40:29,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:40:29,822 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 5 states. [2019-11-21 12:40:29,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:40:29,999 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2019-11-21 12:40:30,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:40:30,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 12:40:30,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:40:30,018 INFO L225 Difference]: With dead ends: 67 [2019-11-21 12:40:30,019 INFO L226 Difference]: Without dead ends: 64 [2019-11-21 12:40:30,021 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:40:30,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-11-21 12:40:30,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2019-11-21 12:40:30,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-21 12:40:30,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2019-11-21 12:40:30,108 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 17 [2019-11-21 12:40:30,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:40:30,109 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2019-11-21 12:40:30,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:40:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2019-11-21 12:40:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 12:40:30,114 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:40:30,114 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:40:30,320 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:40:30,322 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:40:30,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:40:30,322 INFO L82 PathProgramCache]: Analyzing trace with hash -447765101, now seen corresponding path program 1 times [2019-11-21 12:40:30,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:40:30,324 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [270556317] [2019-11-21 12:40:30,324 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 12:40:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:40:30,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:40:30,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:40:30,595 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 12:40:30,596 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:40:30,666 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 12:40:30,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [270556317] [2019-11-21 12:40:30,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:40:30,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 12:40:30,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599750757] [2019-11-21 12:40:30,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 12:40:30,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:40:30,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 12:40:30,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:40:30,670 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 3 states. [2019-11-21 12:40:30,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:40:30,791 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2019-11-21 12:40:30,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 12:40:30,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 12:40:30,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:40:30,793 INFO L225 Difference]: With dead ends: 64 [2019-11-21 12:40:30,793 INFO L226 Difference]: Without dead ends: 61 [2019-11-21 12:40:30,794 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:40:30,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-21 12:40:30,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2019-11-21 12:40:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-21 12:40:30,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2019-11-21 12:40:30,804 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2019-11-21 12:40:30,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:40:30,804 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2019-11-21 12:40:30,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 12:40:30,805 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2019-11-21 12:40:30,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 12:40:30,806 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:40:30,806 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 12:40:31,011 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:40:31,011 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:40:31,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:40:31,012 INFO L82 PathProgramCache]: Analyzing trace with hash 811280697, now seen corresponding path program 1 times [2019-11-21 12:40:31,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:40:31,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [636879162] [2019-11-21 12:40:31,013 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 12:40:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:40:31,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 12:40:31,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:40:31,330 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 12:40:31,331 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:40:31,361 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 12:40:31,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [636879162] [2019-11-21 12:40:31,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:40:31,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 12:40:31,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527026340] [2019-11-21 12:40:31,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:40:31,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:40:31,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:40:31,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:40:31,364 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 6 states. [2019-11-21 12:40:31,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:40:31,462 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2019-11-21 12:40:31,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:40:31,464 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-21 12:40:31,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:40:31,466 INFO L225 Difference]: With dead ends: 98 [2019-11-21 12:40:31,466 INFO L226 Difference]: Without dead ends: 98 [2019-11-21 12:40:31,467 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:40:31,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-21 12:40:31,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 64. [2019-11-21 12:40:31,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-11-21 12:40:31,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2019-11-21 12:40:31,479 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 18 [2019-11-21 12:40:31,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:40:31,480 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2019-11-21 12:40:31,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:40:31,480 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2019-11-21 12:40:31,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:40:31,481 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:40:31,482 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:40:31,685 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:40:31,690 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:40:31,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:40:31,691 INFO L82 PathProgramCache]: Analyzing trace with hash 534601915, now seen corresponding path program 1 times [2019-11-21 12:40:31,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:40:31,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1006369738] [2019-11-21 12:40:31,692 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 12:40:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:40:31,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 12:40:31,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:40:32,005 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 12:40:32,005 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:40:32,010 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:40:32,011 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:40:32,011 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:40:32,135 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:40:32,135 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-21 12:40:32,137 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:40:32,160 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 12:40:32,161 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 12:40:32,161 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 12:40:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:40:32,203 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:40:32,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:40:32,596 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1006369738] [2019-11-21 12:40:32,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:40:32,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 12:40:32,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9245200] [2019-11-21 12:40:32,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 12:40:32,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:40:32,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 12:40:32,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-11-21 12:40:32,601 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand 13 states. [2019-11-21 12:40:45,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:40:45,994 INFO L93 Difference]: Finished difference Result 162 states and 201 transitions. [2019-11-21 12:40:45,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 12:40:45,995 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2019-11-21 12:40:45,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:40:46,000 INFO L225 Difference]: With dead ends: 162 [2019-11-21 12:40:46,003 INFO L226 Difference]: Without dead ends: 162 [2019-11-21 12:40:46,004 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2019-11-21 12:40:46,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-21 12:40:46,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 93. [2019-11-21 12:40:46,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-21 12:40:46,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2019-11-21 12:40:46,037 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 23 [2019-11-21 12:40:46,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:40:46,039 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2019-11-21 12:40:46,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 12:40:46,040 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2019-11-21 12:40:46,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:40:46,042 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:40:46,042 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:40:46,245 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:40:46,246 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:40:46,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:40:46,247 INFO L82 PathProgramCache]: Analyzing trace with hash 534601916, now seen corresponding path program 1 times [2019-11-21 12:40:46,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:40:46,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1324271190] [2019-11-21 12:40:46,249 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 12:40:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:40:46,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-21 12:40:46,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:40:46,548 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 12:40:46,548 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:40:46,563 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:40:46,570 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 12:40:46,570 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:40:46,579 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:40:46,579 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:40:46,580 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 12:40:48,775 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:40:48,777 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 12:40:48,778 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:40:48,802 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:40:48,827 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:40:48,828 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 12:40:48,829 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:40:48,850 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:40:48,851 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:40:48,852 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-11-21 12:40:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:40:48,884 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:40:49,101 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:40:49,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:40:49,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:40:49,605 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:40:49,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:40:49,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:40:49,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:40:49,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:40:58,276 WARN L192 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 12:40:58,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:41:00,742 WARN L192 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2019-11-21 12:41:05,669 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_184|], 2=[|v_#length_144|]} [2019-11-21 12:41:05,683 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 12:41:05,683 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:41:05,694 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:41:05,696 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 12:41:05,696 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:41:05,705 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:41:05,705 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:41:05,706 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 12:41:06,274 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 12:41:06,283 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 12:41:06,284 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:41:06,305 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:41:06,309 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 12:41:06,312 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:41:06,335 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:41:06,335 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:41:06,336 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 12:41:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:41:06,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1324271190] [2019-11-21 12:41:06,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:41:06,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-21 12:41:06,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056356384] [2019-11-21 12:41:06,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 12:41:06,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:41:06,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 12:41:06,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=260, Unknown=4, NotChecked=0, Total=306 [2019-11-21 12:41:06,469 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand 18 states. [2019-11-21 12:41:33,374 WARN L838 $PredicateComparison]: unable to prove that (and (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2)) (.cse1 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_4)) (not (bvsle .cse0 .cse1)) (exists ((v_prenex_2 (_ BitVec 32)) (v_ldv_malloc_~size_28 (_ BitVec 32))) (and (not (bvsle (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_2 v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_2)))))))) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (exists ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1)))) is different from false [2019-11-21 12:41:53,941 WARN L192 SmtUtils]: Spent 12.29 s on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-11-21 12:42:06,534 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 1) (select |c_#valid| c_entry_point_~array~0.base)) (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2)) (.cse1 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_4)) (not (bvsle .cse0 .cse1)) (exists ((v_prenex_2 (_ BitVec 32)) (v_ldv_malloc_~size_28 (_ BitVec 32))) (and (not (bvsle (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_2 v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_2)))))))) (= (bvadd (select |c_#length| c_entry_point_~array~0.base) (_ bv4294967256 32)) (_ bv0 32)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (bvadd c_entry_point_~len~0 (_ bv4294967286 32)) (_ bv0 32)) (exists ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1))) (= c_entry_point_~i~0 (_ bv0 32)) (= (_ bv0 32) c_entry_point_~array~0.offset)) is different from false [2019-11-21 12:42:19,632 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2)) (.cse1 (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 .cse2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_entry_point_~array~0.base_BEFORE_CALL_4)) (not (bvsle .cse0 .cse1)) (exists ((v_prenex_2 (_ BitVec 32)) (v_ldv_malloc_~size_28 (_ BitVec 32))) (and (not (bvsle (bvadd v_entry_point_~array~0.offset_BEFORE_CALL_2 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) (_ bv4 32)) (select (store |c_old(#length)| v_prenex_2 v_ldv_malloc_~size_28) v_entry_point_~array~0.base_BEFORE_CALL_4))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_2)))))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (bvadd c_entry_point_~len~0 (_ bv4294967286 32)) (_ bv0 32)) (exists ((|v_ldv_malloc_#t~malloc12.base_23| (_ BitVec 32))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_23|) (_ bv0 1)))) is different from false [2019-11-21 12:42:22,406 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 12:42:38,484 WARN L192 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2019-11-21 12:43:15,021 WARN L192 SmtUtils]: Spent 22.27 s on a formula simplification. DAG size of input: 50 DAG size of output: 21 [2019-11-21 12:43:47,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:43:47,153 INFO L93 Difference]: Finished difference Result 180 states and 237 transitions. [2019-11-21 12:43:47,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-21 12:43:47,154 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2019-11-21 12:43:47,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:43:47,156 INFO L225 Difference]: With dead ends: 180 [2019-11-21 12:43:47,156 INFO L226 Difference]: Without dead ends: 180 [2019-11-21 12:43:47,157 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 91.5s TimeCoverageRelationStatistics Valid=97, Invalid=498, Unknown=17, NotChecked=144, Total=756 [2019-11-21 12:43:47,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-11-21 12:43:47,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 106. [2019-11-21 12:43:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-21 12:43:47,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 153 transitions. [2019-11-21 12:43:47,171 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 153 transitions. Word has length 23 [2019-11-21 12:43:47,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:43:47,171 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 153 transitions. [2019-11-21 12:43:47,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 12:43:47,171 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 153 transitions. [2019-11-21 12:43:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:43:47,173 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:43:47,173 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:43:47,376 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:43:47,376 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:43:47,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:43:47,377 INFO L82 PathProgramCache]: Analyzing trace with hash 29043290, now seen corresponding path program 1 times [2019-11-21 12:43:47,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:43:47,378 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2002378543] [2019-11-21 12:43:47,378 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 12:43:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:43:47,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 12:43:47,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:43:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:43:47,664 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:43:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:43:47,707 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2002378543] [2019-11-21 12:43:47,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 12:43:47,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-21 12:43:47,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768713371] [2019-11-21 12:43:47,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:43:47,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:43:47,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:43:47,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:43:47,709 INFO L87 Difference]: Start difference. First operand 106 states and 153 transitions. Second operand 5 states. [2019-11-21 12:43:47,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:43:47,788 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2019-11-21 12:43:47,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:43:47,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-21 12:43:47,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:43:47,790 INFO L225 Difference]: With dead ends: 83 [2019-11-21 12:43:47,790 INFO L226 Difference]: Without dead ends: 81 [2019-11-21 12:43:47,790 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:43:47,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-11-21 12:43:47,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-11-21 12:43:47,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-11-21 12:43:47,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 110 transitions. [2019-11-21 12:43:47,798 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 110 transitions. Word has length 23 [2019-11-21 12:43:47,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:43:47,799 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 110 transitions. [2019-11-21 12:43:47,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:43:47,799 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2019-11-21 12:43:47,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 12:43:47,800 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:43:47,800 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:43:48,004 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:43:48,005 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:43:48,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:43:48,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1643676217, now seen corresponding path program 1 times [2019-11-21 12:43:48,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:43:48,007 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1681531288] [2019-11-21 12:43:48,007 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 12:43:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:43:48,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:43:48,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:43:48,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:43:48,271 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:43:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:43:48,315 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1681531288] [2019-11-21 12:43:48,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:43:48,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:43:48,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714727414] [2019-11-21 12:43:48,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:43:48,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:43:48,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:43:48,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:43:48,317 INFO L87 Difference]: Start difference. First operand 81 states and 110 transitions. Second operand 5 states. [2019-11-21 12:43:48,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:43:48,381 INFO L93 Difference]: Finished difference Result 113 states and 148 transitions. [2019-11-21 12:43:48,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:43:48,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-21 12:43:48,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:43:48,383 INFO L225 Difference]: With dead ends: 113 [2019-11-21 12:43:48,383 INFO L226 Difference]: Without dead ends: 113 [2019-11-21 12:43:48,383 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:43:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-11-21 12:43:48,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 85. [2019-11-21 12:43:48,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-21 12:43:48,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 111 transitions. [2019-11-21 12:43:48,392 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 111 transitions. Word has length 25 [2019-11-21 12:43:48,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:43:48,393 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 111 transitions. [2019-11-21 12:43:48,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:43:48,393 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 111 transitions. [2019-11-21 12:43:48,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 12:43:48,394 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:43:48,394 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:43:48,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:43:48,607 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:43:48,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:43:48,607 INFO L82 PathProgramCache]: Analyzing trace with hash 99134118, now seen corresponding path program 1 times [2019-11-21 12:43:48,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:43:48,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1857102503] [2019-11-21 12:43:48,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:43:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:43:48,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 12:43:48,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:43:48,877 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 12:43:48,877 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:43:48,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 12:43:48,910 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1857102503] [2019-11-21 12:43:48,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:43:48,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 12:43:48,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467298964] [2019-11-21 12:43:48,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:43:48,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:43:48,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:43:48,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:43:48,912 INFO L87 Difference]: Start difference. First operand 85 states and 111 transitions. Second operand 6 states. [2019-11-21 12:43:49,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:43:49,014 INFO L93 Difference]: Finished difference Result 89 states and 115 transitions. [2019-11-21 12:43:49,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:43:49,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-21 12:43:49,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:43:49,017 INFO L225 Difference]: With dead ends: 89 [2019-11-21 12:43:49,018 INFO L226 Difference]: Without dead ends: 89 [2019-11-21 12:43:49,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:43:49,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-21 12:43:49,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2019-11-21 12:43:49,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-21 12:43:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 113 transitions. [2019-11-21 12:43:49,025 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 113 transitions. Word has length 25 [2019-11-21 12:43:49,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:43:49,026 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 113 transitions. [2019-11-21 12:43:49,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:43:49,026 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 113 transitions. [2019-11-21 12:43:49,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-21 12:43:49,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:43:49,027 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:43:49,230 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:43:49,231 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:43:49,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:43:49,232 INFO L82 PathProgramCache]: Analyzing trace with hash 778572363, now seen corresponding path program 1 times [2019-11-21 12:43:49,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:43:49,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [938094593] [2019-11-21 12:43:49,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:43:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 12:43:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 12:43:49,588 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-21 12:43:49,589 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-21 12:43:49,793 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:43:49,808 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-21 12:43:49,818 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-21 12:43:49,818 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-21 12:43:49,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:43:49 BoogieIcfgContainer [2019-11-21 12:43:49,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-21 12:43:49,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-21 12:43:49,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-21 12:43:49,847 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-21 12:43:49,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:40:29" (3/4) ... [2019-11-21 12:43:49,852 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-21 12:43:49,852 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-21 12:43:49,856 INFO L168 Benchmark]: Toolchain (without parser) took 203332.24 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 302.0 MB). Free memory was 956.3 MB in the beginning and 988.7 MB in the end (delta: -32.3 MB). Peak memory consumption was 269.7 MB. Max. memory is 11.5 GB. [2019-11-21 12:43:49,856 INFO L168 Benchmark]: CDTParser took 0.22 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 12:43:49,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 969.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 12:43:49,858 INFO L168 Benchmark]: Boogie Preprocessor took 135.06 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 12:43:49,858 INFO L168 Benchmark]: RCFGBuilder took 1561.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.3 MB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. [2019-11-21 12:43:49,859 INFO L168 Benchmark]: TraceAbstraction took 200653.58 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 147.3 MB). Free memory was 986.3 MB in the beginning and 988.7 MB in the end (delta: -2.4 MB). Peak memory consumption was 145.0 MB. Max. memory is 11.5 GB. [2019-11-21 12:43:49,860 INFO L168 Benchmark]: Witness Printer took 7.89 ms. Allocated memory is still 1.3 GB. Free memory is still 988.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:43:49,862 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 969.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 135.06 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 1561.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.3 MB in the end (delta: 110.5 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 200653.58 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 147.3 MB). Free memory was 986.3 MB in the beginning and 988.7 MB in the end (delta: -2.4 MB). Peak memory consumption was 145.0 MB. Max. memory is 11.5 GB. * Witness Printer took 7.89 ms. Allocated memory is still 1.3 GB. Free memory is still 988.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 779]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 779. Possible FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={1108378657:0}] [L780] CALL entry_point() VAL [ldv_global_msg_list={1108378657:0}] [L762] int len = 10; VAL [ldv_global_msg_list={1108378657:0}, len=10] [L763] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40, ldv_global_msg_list={1108378657:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=40, \result={-1039104991:0}, ldv_global_msg_list={1108378657:0}, malloc(size)={-1039104991:0}, size=40] [L763] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_global_msg_list={1108378657:0}, ldv_malloc(sizeof(struct A18*)*len)={-1039104991:0}, len=10] [L763] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L764] struct A18 *p; [L765] int i=0; [L766] int j; VAL [array={-1039104991:0}, i=0, ldv_global_msg_list={1108378657:0}, len=10] [L767] COND FALSE !(!array) VAL [array={-1039104991:0}, i=0, ldv_global_msg_list={1108378657:0}, len=10] [L768] COND TRUE i=0) VAL [array={-1039104991:0}, i=0, j=4294967295, ldv_global_msg_list={1108378657:0}, len=10, p={0:0}] [L780] RET entry_point() VAL [ldv_global_msg_list={1108378657:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 345 locations, 78 error locations. Result: UNSAFE, OverallTime: 200.6s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 174.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 399 SDtfs, 610 SDslu, 1377 SDs, 0 SdLazy, 944 SolverSat, 121 SolverUnsat, 53 SolverUnknown, 0 SolverNotchecked, 101.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 353 GetRequests, 284 SyntacticMatches, 6 SemanticMatches, 63 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 92.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 240 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 21.1s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 326 ConstructedInterpolants, 28 QuantifiedInterpolants, 38682 SizeOfPredicates, 20 NumberOfNonLiveVariables, 715 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 28/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...