./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.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_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/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_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/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_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/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 7660a5e2f9f2a21129eb39e58701014cfc465dc2 .............................................................................................................................................................................................................................................. 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 02:31:50,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:50,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:50,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:50,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:50,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:50,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:50,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:50,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:50,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:50,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:50,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:50,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:50,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:50,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:50,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:50,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:50,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:50,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:50,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:50,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:50,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:50,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:50,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:50,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:50,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:50,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:50,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:50,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:50,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:50,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:50,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:50,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:50,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:50,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:50,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:50,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:50,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:50,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:50,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:50,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:50,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-11 02:31:50,490 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:50,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:50,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:50,497 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:50,498 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:50,498 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:50,498 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:50,498 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:50,498 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:50,499 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:50,500 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:50,500 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:50,501 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:50,501 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:50,501 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:50,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:50,502 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:31:50,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:50,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:50,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:50,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:50,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:50,503 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:31:50,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:50,504 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:50,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:50,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:50,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:50,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:50,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:50,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:50,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:50,506 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:50,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:50,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:50,506 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:50,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:50,507 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_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7660a5e2f9f2a21129eb39e58701014cfc465dc2 [2021-10-11 02:31:50,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:50,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:50,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:50,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:50,837 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:50,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2021-10-11 02:31:50,924 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/bin/utaipan-WLngWcDbfI/data/733006c60/24a95b63774942e6ac46dfeed319ce71/FLAG82ce1e28d [2021-10-11 02:31:51,373 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:51,374 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2021-10-11 02:31:51,381 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/bin/utaipan-WLngWcDbfI/data/733006c60/24a95b63774942e6ac46dfeed319ce71/FLAG82ce1e28d [2021-10-11 02:31:51,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/bin/utaipan-WLngWcDbfI/data/733006c60/24a95b63774942e6ac46dfeed319ce71 [2021-10-11 02:31:51,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:51,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:51,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:51,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:51,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:51,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:51" (1/1) ... [2021-10-11 02:31:51,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a46a0e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:51, skipping insertion in model container [2021-10-11 02:31:51,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:51" (1/1) ... [2021-10-11 02:31:51,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:51,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:51,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:51,972 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:51,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:52,002 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:52,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52 WrapperNode [2021-10-11 02:31:52,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:52,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:52,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:52,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:52,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:52,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:52,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:52,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:52,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:52,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:52,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:52,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:52,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/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 02:31:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:52,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:52,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:52,484 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 02:31:52,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:52 BoogieIcfgContainer [2021-10-11 02:31:52,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:52,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:52,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:52,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:52,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:51" (1/3) ... [2021-10-11 02:31:52,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d25930f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:52, skipping insertion in model container [2021-10-11 02:31:52,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (2/3) ... [2021-10-11 02:31:52,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d25930f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:52, skipping insertion in model container [2021-10-11 02:31:52,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:52" (3/3) ... [2021-10-11 02:31:52,497 INFO L111 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig7.c [2021-10-11 02:31:52,514 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:52,518 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-10-11 02:31:52,531 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-11 02:31:52,559 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:52,560 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:31:52,560 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:52,560 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:52,560 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:52,560 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:52,560 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:52,561 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2021-10-11 02:31:52,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:31:52,598 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:52,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:31:52,599 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_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 02:31:52,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:52,606 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-11 02:31:52,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:52,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29512021] [2021-10-11 02:31:52,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:31:52,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:31:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:31:52,793 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:31:52,814 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:31:52,814 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:31:52,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:31:52,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:31:52 BoogieIcfgContainer [2021-10-11 02:31:52,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:31:52,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:31:52,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:31:52,837 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:31:52,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:52" (3/4) ... [2021-10-11 02:31:52,840 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:31:52,884 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cbbc57-fa7a-4e1b-97fd-4bb3ae20d81c/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:31:52,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:31:52,887 INFO L168 Benchmark]: Toolchain (without parser) took 1134.82 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 56.8 MB in the end (delta: -4.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:52,888 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory is still 68.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:52,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.00 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.4 MB in the beginning and 84.4 MB in the end (delta: -32.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:52,890 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.40 ms. Allocated memory is still 107.0 MB. Free memory was 84.4 MB in the beginning and 83.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:52,891 INFO L168 Benchmark]: Boogie Preprocessor took 22.75 ms. Allocated memory is still 107.0 MB. Free memory was 82.9 MB in the beginning and 82.0 MB in the end (delta: 861.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:52,892 INFO L168 Benchmark]: RCFGBuilder took 420.59 ms. Allocated memory is still 107.0 MB. Free memory was 82.0 MB in the beginning and 70.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:52,893 INFO L168 Benchmark]: TraceAbstraction took 346.71 ms. Allocated memory is still 107.0 MB. Free memory was 69.8 MB in the beginning and 58.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:52,894 INFO L168 Benchmark]: Witness Printer took 47.90 ms. Allocated memory is still 107.0 MB. Free memory was 58.5 MB in the beginning and 56.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:52,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory is still 68.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.00 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.4 MB in the beginning and 84.4 MB in the end (delta: -32.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.40 ms. Allocated memory is still 107.0 MB. Free memory was 84.4 MB in the beginning and 83.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.75 ms. Allocated memory is still 107.0 MB. Free memory was 82.9 MB in the beginning and 82.0 MB in the end (delta: 861.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 420.59 ms. Allocated memory is still 107.0 MB. Free memory was 82.0 MB in the beginning and 70.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 346.71 ms. Allocated memory is still 107.0 MB. Free memory was 69.8 MB in the beginning and 58.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 47.90 ms. Allocated memory is still 107.0 MB. Free memory was 58.5 MB in the beginning and 56.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a, b, c, i, j, M, N; [L16] i = __VERIFIER_nondet_int() [L17] j = __VERIFIER_nondet_int() [L18] M = __VERIFIER_nondet_int() [L19] N = __VERIFIER_nondet_int() [L20] a = i [L21] b = j [L22] c = 0 [L23] COND TRUE i