./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d6cb25c527490bca1238d24ce8da26fb69eb259c --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 11:38:51,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 11:38:51,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 11:38:51,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 11:38:51,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 11:38:51,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 11:38:51,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 11:38:51,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 11:38:51,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 11:38:51,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 11:38:51,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 11:38:51,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 11:38:51,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 11:38:51,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 11:38:51,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 11:38:51,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 11:38:51,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 11:38:51,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 11:38:51,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 11:38:51,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 11:38:51,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 11:38:51,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 11:38:51,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 11:38:51,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 11:38:51,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 11:38:51,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 11:38:51,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 11:38:51,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 11:38:51,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 11:38:51,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 11:38:51,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 11:38:51,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 11:38:51,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 11:38:51,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 11:38:51,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 11:38:51,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 11:38:51,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 11:38:51,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 11:38:51,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 11:38:51,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 11:38:51,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 11:38:51,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 11:38:51,790 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 11:38:51,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 11:38:51,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 11:38:51,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 11:38:51,796 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 11:38:51,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 11:38:51,796 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 11:38:51,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 11:38:51,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 11:38:51,797 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 11:38:51,799 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 11:38:51,799 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 11:38:51,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 11:38:51,800 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 11:38:51,800 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 11:38:51,801 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 11:38:51,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 11:38:51,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 11:38:51,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 11:38:51,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 11:38:51,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:38:51,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 11:38:51,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 11:38:51,804 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 11:38:51,805 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 11:38:51,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 11:38:51,805 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6cb25c527490bca1238d24ce8da26fb69eb259c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 11:38:52,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 11:38:52,132 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 11:38:52,135 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 11:38:52,137 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 11:38:52,138 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 11:38:52,138 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2019-11-21 11:38:52,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acb7139f1/9e17c66b753e4df995b57a24e3097398/FLAG6ca06e0c4 [2019-11-21 11:38:52,801 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 11:38:52,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2019-11-21 11:38:52,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acb7139f1/9e17c66b753e4df995b57a24e3097398/FLAG6ca06e0c4 [2019-11-21 11:38:53,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acb7139f1/9e17c66b753e4df995b57a24e3097398 [2019-11-21 11:38:53,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 11:38:53,042 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 11:38:53,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 11:38:53,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 11:38:53,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 11:38:53,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:38:53" (1/1) ... [2019-11-21 11:38:53,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b130812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:53, skipping insertion in model container [2019-11-21 11:38:53,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:38:53" (1/1) ... [2019-11-21 11:38:53,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 11:38:53,103 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:38:53,595 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:38:53,596 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 11:38:53,596 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:38:53,609 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:38:53,610 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 11:38:53,611 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:38:53,614 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:38:53,615 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 11:38:53,616 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:38:53,619 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:38:53,620 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 11:38:53,620 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:38:53,670 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:38:53,671 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 11:38:53,671 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:38:53,689 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:38:53,690 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [759] [2019-11-21 11:38:53,690 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:38:53,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:38:53,729 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 11:38:53,747 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:38:53,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:38:53,873 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 11:38:53,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:38:54,058 INFO L205 MainTranslator]: Completed translation [2019-11-21 11:38:54,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:54 WrapperNode [2019-11-21 11:38:54,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 11:38:54,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 11:38:54,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 11:38:54,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 11:38:54,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:54" (1/1) ... [2019-11-21 11:38:54,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:54" (1/1) ... [2019-11-21 11:38:54,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:54" (1/1) ... [2019-11-21 11:38:54,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:54" (1/1) ... [2019-11-21 11:38:54,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:54" (1/1) ... [2019-11-21 11:38:54,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:54" (1/1) ... [2019-11-21 11:38:54,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:54" (1/1) ... [2019-11-21 11:38:54,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 11:38:54,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 11:38:54,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 11:38:54,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 11:38:54,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:38:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 11:38:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 11:38:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:38:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 11:38:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 11:38:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 11:38:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 11:38:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 11:38:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 11:38:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 11:38:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 11:38:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 11:38:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:38:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 11:38:54,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 11:38:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 11:38:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 11:38:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 11:38:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 11:38:54,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 11:38:54,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 11:38:54,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 11:38:54,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 11:38:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 11:38:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 11:38:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 11:38:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 11:38:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 11:38:54,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 11:38:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 11:38:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 11:38:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 11:38:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 11:38:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 11:38:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 11:38:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 11:38:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 11:38:54,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 11:38:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 11:38:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 11:38:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 11:38:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 11:38:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 11:38:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 11:38:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 11:38:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 11:38:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 11:38:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 11:38:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 11:38:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 11:38:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 11:38:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 11:38:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 11:38:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 11:38:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 11:38:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 11:38:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 11:38:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 11:38:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 11:38:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 11:38:54,243 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 11:38:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 11:38:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 11:38:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 11:38:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 11:38:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 11:38:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 11:38:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 11:38:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 11:38:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 11:38:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 11:38:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 11:38:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 11:38:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 11:38:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 11:38:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 11:38:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 11:38:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 11:38:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 11:38:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 11:38:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 11:38:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 11:38:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 11:38:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 11:38:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 11:38:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 11:38:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 11:38:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 11:38:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 11:38:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 11:38:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 11:38:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 11:38:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 11:38:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 11:38:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 11:38:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 11:38:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 11:38:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 11:38:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 11:38:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 11:38:54,251 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 11:38:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 11:38:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 11:38:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 11:38:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 11:38:54,252 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 11:38:54,253 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 11:38:54,253 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 11:38:54,253 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 11:38:54,253 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 11:38:54,253 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 11:38:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 11:38:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 11:38:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 11:38:54,254 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 11:38:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 11:38:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 11:38:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 11:38:54,255 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 11:38:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 11:38:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 11:38:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 11:38:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 11:38:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 11:38:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 11:38:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 11:38:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 11:38:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 11:38:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 11:38:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 11:38:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 11:38:54,258 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 11:38:54,259 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 11:38:54,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 11:38:54,259 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 11:38:54,259 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 11:38:54,259 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 11:38:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 11:38:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 11:38:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 11:38:54,260 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 11:38:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 11:38:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 11:38:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 11:38:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 11:38:54,261 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 11:38:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 11:38:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 11:38:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 11:38:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 11:38:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 11:38:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 11:38:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 11:38:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 11:38:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 11:38:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 11:38:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 11:38:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 11:38:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 11:38:54,265 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 11:38:54,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 11:38:54,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 11:38:54,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 11:38:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 11:38:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:38:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 11:38:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 11:38:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 11:38:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 11:38:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 11:38:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 11:38:54,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 11:38:54,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 11:38:54,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 11:38:54,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 11:38:54,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 11:38:54,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 11:38:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 11:38:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 11:38:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 11:38:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 11:38:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 11:38:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 11:38:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 11:38:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 11:38:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 11:38:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:38:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 11:38:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 11:38:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 11:38:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 11:38:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 11:38:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 11:38:54,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 11:38:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 11:38:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 11:38:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 11:38:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 11:38:54,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 11:38:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 11:38:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 11:38:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 11:38:54,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 11:38:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 11:38:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 11:38:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 11:38:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 11:38:54,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 11:38:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 11:38:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 11:38:54,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 11:38:54,873 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:38:55,341 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:38:55,761 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 11:38:55,761 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 11:38:55,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:38:55 BoogieIcfgContainer [2019-11-21 11:38:55,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 11:38:55,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 11:38:55,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 11:38:55,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 11:38:55,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:38:53" (1/3) ... [2019-11-21 11:38:55,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3ea264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:38:55, skipping insertion in model container [2019-11-21 11:38:55,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:38:54" (2/3) ... [2019-11-21 11:38:55,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3ea264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:38:55, skipping insertion in model container [2019-11-21 11:38:55,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:38:55" (3/3) ... [2019-11-21 11:38:55,772 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test1-2.i [2019-11-21 11:38:55,782 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 11:38:55,791 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-21 11:38:55,804 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-21 11:38:55,826 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 11:38:55,826 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 11:38:55,827 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 11:38:55,827 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 11:38:55,827 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 11:38:55,827 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 11:38:55,827 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 11:38:55,828 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 11:38:55,847 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2019-11-21 11:38:55,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-21 11:38:55,858 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:38:55,859 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:38:55,860 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:38:55,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:38:55,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1188691668, now seen corresponding path program 1 times [2019-11-21 11:38:55,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:38:55,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [754161063] [2019-11-21 11:38:55,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:38:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:38:56,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:38:56,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:38:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:38:56,304 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:38:56,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:38:56,364 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [754161063] [2019-11-21 11:38:56,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:38:56,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:38:56,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527711375] [2019-11-21 11:38:56,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:38:56,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:38:56,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:38:56,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:38:56,394 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 5 states. [2019-11-21 11:38:56,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:38:56,448 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-11-21 11:38:56,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:38:56,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-21 11:38:56,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:38:56,462 INFO L225 Difference]: With dead ends: 29 [2019-11-21 11:38:56,462 INFO L226 Difference]: Without dead ends: 26 [2019-11-21 11:38:56,465 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:38:56,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-21 11:38:56,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-21 11:38:56,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-21 11:38:56,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-11-21 11:38:56,517 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 13 [2019-11-21 11:38:56,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:38:56,518 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-11-21 11:38:56,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:38:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-11-21 11:38:56,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-21 11:38:56,520 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:38:56,521 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:38:56,732 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:38:56,733 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:38:56,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:38:56,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1805264323, now seen corresponding path program 1 times [2019-11-21 11:38:56,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:38:56,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [9653643] [2019-11-21 11:38:56,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:38:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:38:57,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:38:57,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:38:57,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:38:57,084 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:38:57,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:38:57,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [9653643] [2019-11-21 11:38:57,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:38:57,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-21 11:38:57,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56835883] [2019-11-21 11:38:57,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 11:38:57,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:38:57,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 11:38:57,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:38:57,172 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 9 states. [2019-11-21 11:38:57,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:38:57,344 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-11-21 11:38:57,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:38:57,345 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-11-21 11:38:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:38:57,346 INFO L225 Difference]: With dead ends: 24 [2019-11-21 11:38:57,346 INFO L226 Difference]: Without dead ends: 24 [2019-11-21 11:38:57,347 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:38:57,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-21 11:38:57,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-21 11:38:57,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-21 11:38:57,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-11-21 11:38:57,353 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 14 [2019-11-21 11:38:57,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:38:57,353 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-11-21 11:38:57,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 11:38:57,354 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-11-21 11:38:57,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 11:38:57,355 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:38:57,355 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:38:57,564 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:38:57,566 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:38:57,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:38:57,567 INFO L82 PathProgramCache]: Analyzing trace with hash 128619534, now seen corresponding path program 1 times [2019-11-21 11:38:57,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:38:57,568 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1737721742] [2019-11-21 11:38:57,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:38:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:38:57,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:38:57,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:38:57,825 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:38:57,826 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:38:57,829 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:38:57,830 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:38:57,830 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:38:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:38:57,856 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:38:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:38:57,911 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1737721742] [2019-11-21 11:38:57,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:38:57,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:38:57,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847252908] [2019-11-21 11:38:57,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:38:57,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:38:57,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:38:57,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:38:57,913 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 5 states. [2019-11-21 11:38:58,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:38:58,018 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-11-21 11:38:58,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:38:58,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-21 11:38:58,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:38:58,020 INFO L225 Difference]: With dead ends: 30 [2019-11-21 11:38:58,020 INFO L226 Difference]: Without dead ends: 30 [2019-11-21 11:38:58,020 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:38:58,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-21 11:38:58,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-21 11:38:58,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-21 11:38:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2019-11-21 11:38:58,027 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 15 [2019-11-21 11:38:58,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:38:58,028 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2019-11-21 11:38:58,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:38:58,028 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2019-11-21 11:38:58,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 11:38:58,029 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:38:58,029 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:38:58,238 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:38:58,239 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:38:58,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:38:58,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1016123215, now seen corresponding path program 1 times [2019-11-21 11:38:58,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:38:58,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1626975687] [2019-11-21 11:38:58,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:38:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:38:58,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-21 11:38:58,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:38:58,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:38:58,481 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:38:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:38:58,511 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1626975687] [2019-11-21 11:38:58,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:38:58,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:38:58,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707170281] [2019-11-21 11:38:58,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:38:58,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:38:58,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:38:58,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:38:58,514 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 5 states. [2019-11-21 11:38:58,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:38:58,554 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-11-21 11:38:58,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:38:58,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-21 11:38:58,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:38:58,559 INFO L225 Difference]: With dead ends: 34 [2019-11-21 11:38:58,560 INFO L226 Difference]: Without dead ends: 34 [2019-11-21 11:38:58,561 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:38:58,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-21 11:38:58,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2019-11-21 11:38:58,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-21 11:38:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-11-21 11:38:58,575 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 15 [2019-11-21 11:38:58,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:38:58,576 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-11-21 11:38:58,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:38:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-11-21 11:38:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 11:38:58,578 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:38:58,578 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:38:58,785 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:38:58,787 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:38:58,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:38:58,787 INFO L82 PathProgramCache]: Analyzing trace with hash 594077831, now seen corresponding path program 1 times [2019-11-21 11:38:58,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:38:58,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1837670093] [2019-11-21 11:38:58,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:38:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 11:38:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 11:38:59,127 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-21 11:38:59,127 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-21 11:38:59,328 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:38:59,352 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-21 11:38:59,354 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-21 11:38:59,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 11:38:59 BoogieIcfgContainer [2019-11-21 11:38:59,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-21 11:38:59,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-21 11:38:59,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-21 11:38:59,370 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-21 11:38:59,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:38:55" (3/4) ... [2019-11-21 11:38:59,374 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-21 11:38:59,393 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-21 11:38:59,396 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-21 11:38:59,470 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-21 11:38:59,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-21 11:38:59,473 INFO L168 Benchmark]: Toolchain (without parser) took 6430.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -125.5 MB). Peak memory consumption was 69.5 MB. Max. memory is 11.5 GB. [2019-11-21 11:38:59,474 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:38:59,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1015.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 941.6 MB in the beginning and 1.0 GB in the end (delta: -98.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-11-21 11:38:59,476 INFO L168 Benchmark]: Boogie Preprocessor took 109.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:38:59,476 INFO L168 Benchmark]: RCFGBuilder took 1594.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 930.4 MB in the end (delta: 109.2 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. [2019-11-21 11:38:59,477 INFO L168 Benchmark]: TraceAbstraction took 3603.41 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 102.2 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:38:59,478 INFO L168 Benchmark]: Witness Printer took 101.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:38:59,481 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1015.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 941.6 MB in the beginning and 1.0 GB in the end (delta: -98.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 109.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1594.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 930.4 MB in the end (delta: 109.2 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3603.41 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 102.2 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 101.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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# - 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: - CounterExampleResult [Line: 761]: free of unallocated memory possible free of unallocated memory possible We found a 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={268468227:0}] [L764] CALL entry_point() VAL [ldv_global_msg_list={268468227:0}] [L759] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={268468227:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=4, \result={1:0}, ldv_global_msg_list={268468227:0}, malloc(size)={1:0}, size=4] [L759] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={268468227:0}, ldv_malloc(sizeof(int))={1:0}] [L759] int *p = (int *)ldv_malloc(sizeof(int)); [L760] free(p) VAL [ldv_global_msg_list={268468227:0}, p={1:0}] [L760] free(p) VAL [ldv_global_msg_list={268468227:0}, p={1:0}] [L760] free(p) [L761] free(p) VAL [ldv_global_msg_list={268468227:0}, p={1:0}] [L761] free(p) VAL [ldv_global_msg_list={268468227:0}, p={1:0}] [L761] free(p) VAL [ldv_global_msg_list={268468227:0}, p={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 46 procedures, 335 locations, 77 error locations. Result: UNSAFE, OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 37 SDslu, 222 SDs, 0 SdLazy, 145 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 3648 SizeOfPredicates, 4 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! Received shutdown request...