./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan --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 9c51224894dcd32e556532086a33c2900554a2d1 .................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 19:17:33,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 19:17:33,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 19:17:33,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 19:17:33,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 19:17:33,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 19:17:33,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 19:17:33,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 19:17:33,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 19:17:33,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 19:17:33,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 19:17:33,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 19:17:33,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 19:17:33,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 19:17:33,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 19:17:33,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 19:17:33,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 19:17:33,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 19:17:33,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 19:17:33,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 19:17:33,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 19:17:33,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 19:17:33,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 19:17:33,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 19:17:33,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 19:17:33,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 19:17:33,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 19:17:33,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 19:17:33,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 19:17:33,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 19:17:33,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 19:17:33,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 19:17:33,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 19:17:33,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 19:17:33,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 19:17:33,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 19:17:33,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 19:17:33,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 19:17:33,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 19:17:33,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 19:17:33,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 19:17:33,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-09 19:17:33,697 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 19:17:33,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 19:17:33,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 19:17:33,698 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 19:17:33,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 19:17:33,698 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 19:17:33,698 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 19:17:33,698 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 19:17:33,698 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 19:17:33,698 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 19:17:33,698 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 19:17:33,698 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 19:17:33,699 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 19:17:33,699 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 19:17:33,699 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 19:17:33,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 19:17:33,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 19:17:33,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 19:17:33,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 19:17:33,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 19:17:33,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 19:17:33,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 19:17:33,700 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 19:17:33,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 19:17:33,700 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 19:17:33,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 19:17:33,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 19:17:33,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 19:17:33,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 19:17:33,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 19:17:33,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 19:17:33,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 19:17:33,701 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 19:17:33,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 19:17:33,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 19:17:33,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 19:17:33,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 19:17:33,702 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-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c51224894dcd32e556532086a33c2900554a2d1 [2020-12-09 19:17:33,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 19:17:33,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 19:17:33,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 19:17:33,915 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 19:17:33,915 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 19:17:33,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/../../sv-benchmarks/c/termination-crafted/Bangalore-2.c [2020-12-09 19:17:33,956 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/data/778e53611/9a4255d1b6ef4fcd91e5ae53aaed4edf/FLAG4a62a0e87 [2020-12-09 19:17:34,339 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 19:17:34,339 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/sv-benchmarks/c/termination-crafted/Bangalore-2.c [2020-12-09 19:17:34,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/data/778e53611/9a4255d1b6ef4fcd91e5ae53aaed4edf/FLAG4a62a0e87 [2020-12-09 19:17:34,353 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/data/778e53611/9a4255d1b6ef4fcd91e5ae53aaed4edf [2020-12-09 19:17:34,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 19:17:34,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 19:17:34,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 19:17:34,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 19:17:34,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 19:17:34,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a16cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34, skipping insertion in model container [2020-12-09 19:17:34,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 19:17:34,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 19:17:34,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:17:34,478 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 19:17:34,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:17:34,496 INFO L208 MainTranslator]: Completed translation [2020-12-09 19:17:34,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34 WrapperNode [2020-12-09 19:17:34,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 19:17:34,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 19:17:34,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 19:17:34,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 19:17:34,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 19:17:34,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 19:17:34,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 19:17:34,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 19:17:34,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (1/1) ... [2020-12-09 19:17:34,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 19:17:34,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 19:17:34,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 19:17:34,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 19:17:34,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 19:17:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 19:17:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 19:17:34,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 19:17:34,689 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-09 19:17:34,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:17:34 BoogieIcfgContainer [2020-12-09 19:17:34,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 19:17:34,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 19:17:34,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 19:17:34,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 19:17:34,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:17:34" (1/3) ... [2020-12-09 19:17:34,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d340374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:17:34, skipping insertion in model container [2020-12-09 19:17:34,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:17:34" (2/3) ... [2020-12-09 19:17:34,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d340374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:17:34, skipping insertion in model container [2020-12-09 19:17:34,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:17:34" (3/3) ... [2020-12-09 19:17:34,697 INFO L111 eAbstractionObserver]: Analyzing ICFG Bangalore-2.c [2020-12-09 19:17:34,707 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 19:17:34,709 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 19:17:34,716 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 19:17:34,734 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 19:17:34,734 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 19:17:34,734 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 19:17:34,734 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 19:17:34,734 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 19:17:34,734 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 19:17:34,734 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 19:17:34,734 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 19:17:34,744 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 19:17:34,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 19:17:34,747 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:17:34,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 19:17:34,748 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 19:17:34,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:17:34,753 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2020-12-09 19:17:34,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:17:34,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629648640] [2020-12-09 19:17:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:17:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:17:34,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:17:34,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629648640] [2020-12-09 19:17:34,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:17:34,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 19:17:34,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210412387] [2020-12-09 19:17:34,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 19:17:34,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:17:34,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 19:17:34,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 19:17:34,893 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-12-09 19:17:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:17:34,954 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2020-12-09 19:17:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 19:17:34,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-09 19:17:34,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:17:34,961 INFO L225 Difference]: With dead ends: 20 [2020-12-09 19:17:34,961 INFO L226 Difference]: Without dead ends: 15 [2020-12-09 19:17:34,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 19:17:34,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-09 19:17:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 9. [2020-12-09 19:17:34,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-09 19:17:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-09 19:17:34,986 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2020-12-09 19:17:34,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:17:34,987 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-09 19:17:34,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 19:17:34,987 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-09 19:17:34,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 19:17:34,987 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:17:34,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 19:17:34,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 19:17:34,988 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 19:17:34,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:17:34,989 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2020-12-09 19:17:34,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:17:34,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096408218] [2020-12-09 19:17:34,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:17:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:17:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:17:35,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096408218] [2020-12-09 19:17:35,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:17:35,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 19:17:35,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216759454] [2020-12-09 19:17:35,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 19:17:35,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:17:35,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 19:17:35,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 19:17:35,017 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-12-09 19:17:35,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:17:35,034 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-12-09 19:17:35,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 19:17:35,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-09 19:17:35,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:17:35,035 INFO L225 Difference]: With dead ends: 9 [2020-12-09 19:17:35,035 INFO L226 Difference]: Without dead ends: 8 [2020-12-09 19:17:35,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 19:17:35,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-09 19:17:35,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-09 19:17:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-09 19:17:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-09 19:17:35,039 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2020-12-09 19:17:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:17:35,040 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-09 19:17:35,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 19:17:35,040 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-09 19:17:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 19:17:35,040 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:17:35,041 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-09 19:17:35,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 19:17:35,041 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 19:17:35,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:17:35,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1537667284, now seen corresponding path program 1 times [2020-12-09 19:17:35,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:17:35,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504538939] [2020-12-09 19:17:35,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:17:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:17:35,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:17:35,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504538939] [2020-12-09 19:17:35,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942974600] [2020-12-09 19:17:35,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 19:17:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:17:35,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 19:17:35,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:17:35,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:17:35,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 19:17:35,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:17:35,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 19:17:35,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 8 [2020-12-09 19:17:35,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501866172] [2020-12-09 19:17:35,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 19:17:35,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:17:35,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 19:17:35,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-12-09 19:17:35,235 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2020-12-09 19:17:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:17:35,251 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-12-09 19:17:35,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 19:17:35,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 19:17:35,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:17:35,252 INFO L225 Difference]: With dead ends: 9 [2020-12-09 19:17:35,252 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 19:17:35,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-12-09 19:17:35,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 19:17:35,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 19:17:35,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 19:17:35,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 19:17:35,253 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-12-09 19:17:35,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:17:35,254 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 19:17:35,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 19:17:35,254 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 19:17:35,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 19:17:35,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-09 19:17:35,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 19:17:35,578 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-09 19:17:35,578 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 19:17:35,580 INFO L258 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-12-09 19:17:35,580 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-12-09 19:17:35,581 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 19:17:35,581 INFO L262 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-12-09 19:17:35,582 INFO L262 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-12-09 19:17:35,583 INFO L262 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-12-09 19:17:35,583 INFO L258 CegarLoopResult]: At program point L18-1(lines 18 22) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-12-09 19:17:35,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:17:35 BoogieIcfgContainer [2020-12-09 19:17:35,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 19:17:35,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 19:17:35,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 19:17:35,619 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 19:17:35,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:17:34" (3/4) ... [2020-12-09 19:17:35,624 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 19:17:35,633 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-09 19:17:35,633 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 19:17:35,634 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 19:17:35,662 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c6c9679d-08f6-4a37-9fd7-98c7d4a9c265/bin/utaipan/witness.graphml [2020-12-09 19:17:35,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 19:17:35,663 INFO L168 Benchmark]: Toolchain (without parser) took 1306.80 ms. Allocated memory is still 113.2 MB. Free memory was 76.9 MB in the beginning and 73.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. [2020-12-09 19:17:35,664 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 113.2 MB. Free memory was 93.0 MB in the beginning and 92.9 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:17:35,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.87 ms. Allocated memory is still 113.2 MB. Free memory was 76.8 MB in the beginning and 91.5 MB in the end (delta: -14.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 19:17:35,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.22 ms. Allocated memory is still 113.2 MB. Free memory was 91.0 MB in the beginning and 89.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:17:35,665 INFO L168 Benchmark]: Boogie Preprocessor took 11.77 ms. Allocated memory is still 113.2 MB. Free memory was 89.9 MB in the beginning and 88.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:17:35,666 INFO L168 Benchmark]: RCFGBuilder took 161.21 ms. Allocated memory is still 113.2 MB. Free memory was 88.9 MB in the beginning and 78.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 19:17:35,666 INFO L168 Benchmark]: TraceAbstraction took 925.33 ms. Allocated memory is still 113.2 MB. Free memory was 78.9 MB in the beginning and 75.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2020-12-09 19:17:35,667 INFO L168 Benchmark]: Witness Printer took 43.45 ms. Allocated memory is still 113.2 MB. Free memory was 75.5 MB in the beginning and 73.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:17:35,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 113.2 MB. Free memory was 93.0 MB in the beginning and 92.9 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 139.87 ms. Allocated memory is still 113.2 MB. Free memory was 76.8 MB in the beginning and 91.5 MB in the end (delta: -14.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 20.22 ms. Allocated memory is still 113.2 MB. Free memory was 91.0 MB in the beginning and 89.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 11.77 ms. Allocated memory is still 113.2 MB. Free memory was 89.9 MB in the beginning and 88.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 161.21 ms. Allocated memory is still 113.2 MB. Free memory was 88.9 MB in the beginning and 78.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 925.33 ms. Allocated memory is still 113.2 MB. Free memory was 78.9 MB in the beginning and 75.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. * Witness Printer took 43.45 ms. Allocated memory is still 113.2 MB. Free memory was 75.5 MB in the beginning and 73.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (1 <= y && x <= 2147483647) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 24 SDslu, 1 SDs, 0 SdLazy, 36 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 799 SizeOfPredicates, 1 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 2/6 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 correct! Received shutdown request...