./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5acc2aa1430881b160e5f11e4b9716f258fd6460 ...................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-28 03:18:52,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:18:52,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:18:52,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:18:52,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:18:52,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:18:52,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:18:52,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:18:52,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:18:52,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:18:52,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:18:52,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:18:52,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:18:52,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:18:52,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:18:52,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:18:52,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:18:52,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:18:52,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:18:52,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:18:52,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:18:52,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:18:52,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:18:52,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:18:52,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:18:52,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:18:52,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:18:52,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:18:52,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:18:52,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:18:52,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:18:52,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:18:52,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:18:52,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:18:52,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:18:52,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:18:52,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:18:52,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:18:52,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:18:52,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:18:52,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:18:52,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 03:18:52,843 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:18:52,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:18:52,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:18:52,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:18:52,849 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:18:52,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:18:52,850 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:18:52,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:18:52,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:18:52,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:18:52,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:18:52,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:18:52,853 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:18:52,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:18:52,853 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:18:52,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:18:52,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:18:52,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:18:52,854 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:18:52,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:18:52,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:18:52,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:18:52,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:18:52,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:18:52,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:18:52,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:18:52,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:18:52,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:18:52,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5acc2aa1430881b160e5f11e4b9716f258fd6460 [2020-11-28 03:18:53,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:18:53,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:18:53,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:18:53,300 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:18:53,313 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:18:53,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex3.c [2020-11-28 03:18:53,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/data/7f785405f/b29274c306484185b03de2f377fda671/FLAG52b40de7c [2020-11-28 03:18:54,078 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:18:54,080 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex3.c [2020-11-28 03:18:54,092 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/data/7f785405f/b29274c306484185b03de2f377fda671/FLAG52b40de7c [2020-11-28 03:18:54,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/data/7f785405f/b29274c306484185b03de2f377fda671 [2020-11-28 03:18:54,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:18:54,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:18:54,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:54,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:18:54,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:18:54,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b7cc3b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54, skipping insertion in model container [2020-11-28 03:18:54,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:18:54,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:18:54,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:54,670 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:18:54,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:54,707 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:18:54,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54 WrapperNode [2020-11-28 03:18:54,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:54,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:54,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:18:54,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:18:54,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:54,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:18:54,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:18:54,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:18:54,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (1/1) ... [2020-11-28 03:18:54,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:18:54,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:18:54,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:18:54,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:18:54,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/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 [2020-11-28 03:18:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure a [2020-11-28 03:18:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure a [2020-11-28 03:18:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:18:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:18:55,401 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:18:55,401 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-28 03:18:55,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:55 BoogieIcfgContainer [2020-11-28 03:18:55,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:18:55,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:18:55,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:18:55,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:18:55,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:54" (1/3) ... [2020-11-28 03:18:55,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1095949e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:55, skipping insertion in model container [2020-11-28 03:18:55,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:54" (2/3) ... [2020-11-28 03:18:55,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1095949e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:55, skipping insertion in model container [2020-11-28 03:18:55,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:55" (3/3) ... [2020-11-28 03:18:55,420 INFO L111 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex3.c [2020-11-28 03:18:55,435 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:18:55,441 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-28 03:18:55,455 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-28 03:18:55,501 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:18:55,501 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:18:55,502 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:18:55,502 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:18:55,502 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:18:55,502 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:18:55,503 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:18:55,503 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:18:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-11-28 03:18:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:18:55,536 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:55,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:18:55,538 INFO L429 AbstractCegarLoop]: === Iteration 1 === [aErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:18:55,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:55,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1867061649, now seen corresponding path program 1 times [2020-11-28 03:18:55,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:55,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754222481] [2020-11-28 03:18:55,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:55,680 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:55,696 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:55,725 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:18:55,726 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:18:55,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:18:55,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:18:55 BoogieIcfgContainer [2020-11-28 03:18:55,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:18:55,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:18:55,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:18:55,761 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:18:55,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:55" (3/4) ... [2020-11-28 03:18:55,766 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:18:55,838 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1fc1559d-f736-41d0-9112-b4200fc3b9ab/bin/uautomizer/witness.graphml [2020-11-28 03:18:55,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:18:55,842 INFO L168 Benchmark]: Toolchain (without parser) took 1387.62 ms. Allocated memory is still 102.8 MB. Free memory was 67.5 MB in the beginning and 53.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:55,848 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 102.8 MB. Free memory was 83.3 MB in the beginning and 83.3 MB in the end (delta: 53.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:55,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.67 ms. Allocated memory is still 102.8 MB. Free memory was 67.3 MB in the beginning and 80.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:55,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.40 ms. Allocated memory is still 102.8 MB. Free memory was 80.8 MB in the beginning and 79.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:55,852 INFO L168 Benchmark]: Boogie Preprocessor took 23.76 ms. Allocated memory is still 102.8 MB. Free memory was 79.6 MB in the beginning and 78.6 MB in the end (delta: 993.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:55,853 INFO L168 Benchmark]: RCFGBuilder took 609.55 ms. Allocated memory is still 102.8 MB. Free memory was 78.6 MB in the beginning and 67.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:55,854 INFO L168 Benchmark]: TraceAbstraction took 346.91 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 55.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:55,858 INFO L168 Benchmark]: Witness Printer took 77.97 ms. Allocated memory is still 102.8 MB. Free memory was 55.6 MB in the beginning and 53.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:55,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 102.8 MB. Free memory was 83.3 MB in the beginning and 83.3 MB in the end (delta: 53.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.67 ms. Allocated memory is still 102.8 MB. Free memory was 67.3 MB in the beginning and 80.8 MB in the end (delta: -13.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.40 ms. Allocated memory is still 102.8 MB. Free memory was 80.8 MB in the beginning and 79.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.76 ms. Allocated memory is still 102.8 MB. Free memory was 79.6 MB in the beginning and 78.6 MB in the end (delta: 993.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 609.55 ms. Allocated memory is still 102.8 MB. Free memory was 78.6 MB in the beginning and 67.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 346.91 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 55.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 77.97 ms. Allocated memory is still 102.8 MB. Free memory was 55.6 MB in the beginning and 53.9 MB in the end (delta: 1.8 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: 14]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int m = __VERIFIER_nondet_int(); [L26] int n = __VERIFIER_nondet_int(); [L27] COND TRUE m >= 0 && n >= 0 [L28] CALL a(m,n) VAL [\old(m)=0, \old(n)=2147483647] [L13] COND TRUE m <= 0 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] [L14] n + 1 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 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=35occurred 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, 6 NumberOfCodeBlocks, 6 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...