./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 308780b81e2d0866a989f5189e54a3384f9af47c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:21,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:21,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:21,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:21,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:21,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:21,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:21,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:21,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:21,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:21,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:21,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:21,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:21,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:21,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:21,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:21,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:21,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:21,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:21,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:21,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:21,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:21,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:21,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:21,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:21,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:21,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:21,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:21,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:21,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:21,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:21,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:21,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:21,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:21,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:21,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:21,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:21,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:21,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:21,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:21,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:21,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:22:21,529 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:21,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:21,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:21,533 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:21,534 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:21,534 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:21,534 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:21,534 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:21,534 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:21,534 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:21,535 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:21,535 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:21,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:22:21,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:22:21,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:21,536 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:21,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:22:21,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:21,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:21,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:21,537 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:22:21,537 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:22:21,537 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:22:21,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:21,538 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:21,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:21,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:21,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:21,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:21,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:21,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:21,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:21,539 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:21,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:21,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:21,540 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 308780b81e2d0866a989f5189e54a3384f9af47c [2019-10-22 11:22:21,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:21,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:21,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:21,593 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:21,594 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:21,594 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2019-10-22 11:22:21,650 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/data/48c8cafcb/6c7a1f62e28e4f1791fa69078cf67493/FLAGc88a49616 [2019-10-22 11:22:22,046 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:22,047 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2019-10-22 11:22:22,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/data/48c8cafcb/6c7a1f62e28e4f1791fa69078cf67493/FLAGc88a49616 [2019-10-22 11:22:22,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/data/48c8cafcb/6c7a1f62e28e4f1791fa69078cf67493 [2019-10-22 11:22:22,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:22,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:22,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:22,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:22,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:22,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e773620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22, skipping insertion in model container [2019-10-22 11:22:22,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,091 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:22,147 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:22,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:22,594 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:22,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:22,715 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:22,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22 WrapperNode [2019-10-22 11:22:22,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:22,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:22,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:22,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:22,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:22,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:22,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:22,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:22,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:22,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:22,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:22,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:22,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/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 [2019-10-22 11:22:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:22:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:22:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:23,023 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:23,023 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-10-22 11:22:23,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:23 BoogieIcfgContainer [2019-10-22 11:22:23,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:23,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:23,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:23,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:23,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:22" (1/3) ... [2019-10-22 11:22:23,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58749379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:23, skipping insertion in model container [2019-10-22 11:22:23,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (2/3) ... [2019-10-22 11:22:23,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58749379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:23, skipping insertion in model container [2019-10-22 11:22:23,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:23" (3/3) ... [2019-10-22 11:22:23,038 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test8_2.i [2019-10-22 11:22:23,047 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:23,070 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-10-22 11:22:23,088 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-10-22 11:22:23,106 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:23,106 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:22:23,107 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:23,107 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:23,107 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:23,107 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:23,107 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:23,107 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:23,120 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-22 11:22:23,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 11:22:23,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,128 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,130 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:23,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,135 INFO L82 PathProgramCache]: Analyzing trace with hash 889508744, now seen corresponding path program 1 times [2019-10-22 11:22:23,143 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431466266] [2019-10-22 11:22:23,143 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,152 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431466266] [2019-10-22 11:22:23,359 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,359 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:23,359 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498573075] [2019-10-22 11:22:23,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:23,364 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:23,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,376 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-10-22 11:22:23,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,426 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2019-10-22 11:22:23,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:23,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-10-22 11:22:23,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,437 INFO L225 Difference]: With dead ends: 21 [2019-10-22 11:22:23,437 INFO L226 Difference]: Without dead ends: 19 [2019-10-22 11:22:23,438 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:23,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-22 11:22:23,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-22 11:22:23,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 11:22:23,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-22 11:22:23,472 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 6 [2019-10-22 11:22:23,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,473 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-22 11:22:23,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:23,473 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-22 11:22:23,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:22:23,476 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,476 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,476 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:23,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1804967335, now seen corresponding path program 1 times [2019-10-22 11:22:23,477 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,477 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677394931] [2019-10-22 11:22:23,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,555 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677394931] [2019-10-22 11:22:23,556 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,556 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:23,556 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892371736] [2019-10-22 11:22:23,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:23,557 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:23,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,558 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 4 states. [2019-10-22 11:22:23,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,659 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2019-10-22 11:22:23,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:23,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 11:22:23,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,660 INFO L225 Difference]: With dead ends: 37 [2019-10-22 11:22:23,660 INFO L226 Difference]: Without dead ends: 37 [2019-10-22 11:22:23,661 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:23,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-10-22 11:22:23,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-10-22 11:22:23,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 11:22:23,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-10-22 11:22:23,667 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 7 [2019-10-22 11:22:23,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,667 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-10-22 11:22:23,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:23,667 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-10-22 11:22:23,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:22:23,668 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,668 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,668 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:23,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1806814377, now seen corresponding path program 1 times [2019-10-22 11:22:23,669 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,669 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505972181] [2019-10-22 11:22:23,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,737 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505972181] [2019-10-22 11:22:23,737 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,738 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:23,738 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904356003] [2019-10-22 11:22:23,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:23,738 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:23,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,739 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 4 states. [2019-10-22 11:22:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,797 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-10-22 11:22:23,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:23,798 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 11:22:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,798 INFO L225 Difference]: With dead ends: 25 [2019-10-22 11:22:23,798 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 11:22:23,799 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:23,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 11:22:23,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2019-10-22 11:22:23,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-22 11:22:23,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-10-22 11:22:23,801 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 7 [2019-10-22 11:22:23,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,801 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-10-22 11:22:23,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-10-22 11:22:23,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:22:23,802 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,802 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,802 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:23,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,803 INFO L82 PathProgramCache]: Analyzing trace with hash 119668790, now seen corresponding path program 1 times [2019-10-22 11:22:23,803 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,803 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864592407] [2019-10-22 11:22:23,803 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,804 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,832 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864592407] [2019-10-22 11:22:23,833 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:22:23,833 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465999446] [2019-10-22 11:22:23,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:23,833 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:23,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,834 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2019-10-22 11:22:23,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,867 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-10-22 11:22:23,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:23,868 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-10-22 11:22:23,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,868 INFO L225 Difference]: With dead ends: 23 [2019-10-22 11:22:23,868 INFO L226 Difference]: Without dead ends: 23 [2019-10-22 11:22:23,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:23,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-22 11:22:23,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-10-22 11:22:23,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-22 11:22:23,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-10-22 11:22:23,871 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 8 [2019-10-22 11:22:23,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,871 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-10-22 11:22:23,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:23,872 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-10-22 11:22:23,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:22:23,872 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,872 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,872 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:23,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,873 INFO L82 PathProgramCache]: Analyzing trace with hash 119412586, now seen corresponding path program 1 times [2019-10-22 11:22:23,873 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,873 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205407958] [2019-10-22 11:22:23,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205407958] [2019-10-22 11:22:23,906 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,906 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:23,906 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263621667] [2019-10-22 11:22:23,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:23,906 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:23,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,907 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2019-10-22 11:22:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,957 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-10-22 11:22:23,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:23,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-10-22 11:22:23,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,958 INFO L225 Difference]: With dead ends: 19 [2019-10-22 11:22:23,958 INFO L226 Difference]: Without dead ends: 19 [2019-10-22 11:22:23,959 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:23,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-22 11:22:23,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-22 11:22:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-22 11:22:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-10-22 11:22:23,962 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 8 [2019-10-22 11:22:23,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,962 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-10-22 11:22:23,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:23,963 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-10-22 11:22:23,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:22:23,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,963 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,963 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:23,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,964 INFO L82 PathProgramCache]: Analyzing trace with hash 176927092, now seen corresponding path program 1 times [2019-10-22 11:22:23,964 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985193563] [2019-10-22 11:22:23,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985193563] [2019-10-22 11:22:23,987 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:23,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134689609] [2019-10-22 11:22:23,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:23,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:23,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:23,988 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2019-10-22 11:22:24,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:24,001 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-10-22 11:22:24,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:24,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-22 11:22:24,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:24,003 INFO L225 Difference]: With dead ends: 21 [2019-10-22 11:22:24,003 INFO L226 Difference]: Without dead ends: 16 [2019-10-22 11:22:24,003 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:24,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-22 11:22:24,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-22 11:22:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-22 11:22:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-10-22 11:22:24,005 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 8 [2019-10-22 11:22:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:24,005 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-10-22 11:22:24,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-10-22 11:22:24,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:22:24,006 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:24,006 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:24,007 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 11:22:24,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:24,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1842728914, now seen corresponding path program 1 times [2019-10-22 11:22:24,007 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:24,008 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132210300] [2019-10-22 11:22:24,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:24,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:24,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:24,079 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:22:24,079 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:22:24,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:24 BoogieIcfgContainer [2019-10-22 11:22:24,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:24,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:24,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:24,111 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:24,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:23" (3/4) ... [2019-10-22 11:22:24,113 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:22:24,150 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_32022858-1720-42d6-bdb3-eebf249bb752/bin/utaipan/witness.graphml [2019-10-22 11:22:24,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:24,153 INFO L168 Benchmark]: Toolchain (without parser) took 2076.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 939.2 MB in the beginning and 993.1 MB in the end (delta: -53.9 MB). Peak memory consumption was 77.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,153 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:24,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,154 INFO L168 Benchmark]: Boogie Preprocessor took 21.79 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. [2019-10-22 11:22:24,155 INFO L168 Benchmark]: RCFGBuilder took 235.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,155 INFO L168 Benchmark]: TraceAbstraction took 1085.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.5 MB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,156 INFO L168 Benchmark]: Witness Printer took 40.03 ms. Allocated memory is still 1.2 GB. Free memory was 998.5 MB in the beginning and 993.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:24,158 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 639.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.79 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. * RCFGBuilder took 235.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1085.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.5 MB in the end (delta: 75.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 11.5 GB. * Witness Printer took 40.03 ms. Allocated memory is still 1.2 GB. Free memory was 998.5 MB in the beginning and 993.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 763]: 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) }; [L758] int *a8; VAL [a8={0:0}, ldv_global_msg_list={5:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [a8={0:0}, ldv_global_msg_list={5:0}] [L760] a8 = (int *)ldv_malloc(sizeof(int)) [L763] COND TRUE \read(*a8) VAL [a8={7:0}, ldv_global_msg_list={5:0}] [L763] free(a8) VAL [a8={7:0}, ldv_global_msg_list={5:0}] [L763] free(a8) VAL [a8={7:0}, ldv_global_msg_list={5:0}] [L763] free(a8) [L763] COND TRUE \read(*a8) VAL [a8={7:0}, ldv_global_msg_list={5:0}] [L763] free(a8) VAL [a8={7:0}, ldv_global_msg_list={5:0}] [L763] free(a8) VAL [a8={7:0}, ldv_global_msg_list={5:0}] [L763] free(a8) VAL [a8={7:0}, ldv_global_msg_list={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 7 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 105 SDslu, 56 SDs, 0 SdLazy, 113 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, 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, 6 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...