./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8bf437ee6df68a45a888179bc2ce190e02bc3912 ......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:33:10,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:33:10,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:33:10,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:33:10,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:33:10,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:33:10,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:33:10,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:33:10,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:33:10,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:33:10,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:33:10,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:33:10,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:33:10,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:33:10,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:33:10,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:33:10,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:33:10,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:33:10,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:33:10,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:33:10,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:33:10,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:33:10,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:33:10,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:33:10,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:33:10,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:33:10,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:33:10,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:33:10,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:33:10,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:33:10,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:33:10,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:33:10,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:33:10,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:33:10,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:33:10,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:33:10,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:33:10,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:33:10,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:33:10,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:33:10,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:33:10,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-11 02:33:10,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:33:10,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:33:10,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:33:10,460 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:33:10,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:33:10,461 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:33:10,461 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:33:10,461 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:33:10,461 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:33:10,462 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:33:10,463 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:33:10,463 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:33:10,463 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:33:10,463 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:33:10,464 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:33:10,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:33:10,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:33:10,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:33:10,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:33:10,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:33:10,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:33:10,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:33:10,466 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:33:10,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:33:10,466 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:33:10,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:33:10,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:33:10,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:33:10,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:33:10,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:33:10,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:33:10,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:33:10,470 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:33:10,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:33:10,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:33:10,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:33:10,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:33:10,471 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bf437ee6df68a45a888179bc2ce190e02bc3912 [2021-10-11 02:33:10,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:33:10,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:33:10,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:33:10,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:33:10,832 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:33:10,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig9.c [2021-10-11 02:33:10,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/data/e7d7916c7/dd8f79c27f6143dfa65d33cc24677794/FLAG408bca636 [2021-10-11 02:33:11,431 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:33:11,432 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig9.c [2021-10-11 02:33:11,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/data/e7d7916c7/dd8f79c27f6143dfa65d33cc24677794/FLAG408bca636 [2021-10-11 02:33:11,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/data/e7d7916c7/dd8f79c27f6143dfa65d33cc24677794 [2021-10-11 02:33:11,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:33:11,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:33:11,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:33:11,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:33:11,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:33:11,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:11,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18de8d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:11, skipping insertion in model container [2021-10-11 02:33:11,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:33:11" (1/1) ... [2021-10-11 02:33:11,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:33:11,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:33:12,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:33:12,040 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:33:12,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:33:12,065 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:33:12,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12 WrapperNode [2021-10-11 02:33:12,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:33:12,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:33:12,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:33:12,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:33:12,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (1/1) ... [2021-10-11 02:33:12,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (1/1) ... [2021-10-11 02:33:12,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:33:12,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:33:12,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:33:12,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:33:12,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (1/1) ... [2021-10-11 02:33:12,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (1/1) ... [2021-10-11 02:33:12,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (1/1) ... [2021-10-11 02:33:12,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (1/1) ... [2021-10-11 02:33:12,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (1/1) ... [2021-10-11 02:33:12,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (1/1) ... [2021-10-11 02:33:12,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (1/1) ... [2021-10-11 02:33:12,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:33:12,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:33:12,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:33:12,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:33:12,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:33:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:33:12,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:33:12,493 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:33:12,508 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 02:33:12,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:12 BoogieIcfgContainer [2021-10-11 02:33:12,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:33:12,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:33:12,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:33:12,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:33:12,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:33:11" (1/3) ... [2021-10-11 02:33:12,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55db4a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:12, skipping insertion in model container [2021-10-11 02:33:12,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:12" (2/3) ... [2021-10-11 02:33:12,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55db4a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:12, skipping insertion in model container [2021-10-11 02:33:12,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:12" (3/3) ... [2021-10-11 02:33:12,519 INFO L111 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig9.c [2021-10-11 02:33:12,534 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:33:12,538 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2021-10-11 02:33:12,550 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-11 02:33:12,574 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:33:12,575 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:33:12,575 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:33:12,575 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:33:12,575 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:33:12,575 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:33:12,576 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:33:12,576 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:33:12,590 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2021-10-11 02:33:12,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:33:12,595 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:12,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:33:12,597 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:33:12,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:12,603 INFO L82 PathProgramCache]: Analyzing trace with hash 994, now seen corresponding path program 1 times [2021-10-11 02:33:12,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:33:12,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972153806] [2021-10-11 02:33:12,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:33:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:33:12,750 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:33:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:33:12,773 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:33:12,798 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:33:12,799 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:33:12,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:33:12,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:33:12 BoogieIcfgContainer [2021-10-11 02:33:12,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:33:12,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:33:12,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:33:12,827 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:33:12,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:12" (3/4) ... [2021-10-11 02:33:12,830 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:33:12,880 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc65e48-a665-4ec3-af0b-ee02f6d07853/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:33:12,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:33:12,882 INFO L168 Benchmark]: Toolchain (without parser) took 1065.21 ms. Allocated memory is still 90.2 MB. Free memory was 57.1 MB in the beginning and 42.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:12,883 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:12,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.88 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 68.9 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:12,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.95 ms. Allocated memory is still 90.2 MB. Free memory was 68.9 MB in the beginning and 67.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:12,886 INFO L168 Benchmark]: Boogie Preprocessor took 19.49 ms. Allocated memory is still 90.2 MB. Free memory was 67.7 MB in the beginning and 66.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:12,887 INFO L168 Benchmark]: RCFGBuilder took 392.36 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 54.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:12,888 INFO L168 Benchmark]: TraceAbstraction took 309.67 ms. Allocated memory is still 90.2 MB. Free memory was 54.3 MB in the beginning and 43.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:12,889 INFO L168 Benchmark]: Witness Printer took 53.90 ms. Allocated memory is still 90.2 MB. Free memory was 43.9 MB in the beginning and 42.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:12,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 244.88 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 68.9 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.95 ms. Allocated memory is still 90.2 MB. Free memory was 68.9 MB in the beginning and 67.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.49 ms. Allocated memory is still 90.2 MB. Free memory was 67.7 MB in the beginning and 66.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 392.36 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 54.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 309.67 ms. Allocated memory is still 90.2 MB. Free memory was 54.3 MB in the beginning and 43.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 53.90 ms. Allocated memory is still 90.2 MB. Free memory was 43.9 MB in the beginning and 42.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, z; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] z = __VERIFIER_nondet_int() [L18] 2*y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...