./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/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 00d107e65807c328c5ca82cfbd5c365270dccab4 ........................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-07 20:26:07,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:26:07,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:26:07,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:26:07,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:26:07,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:26:07,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:26:07,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:26:07,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:26:07,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:26:07,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:26:07,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:26:07,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:26:07,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:26:07,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:26:07,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:26:07,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:26:07,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:26:07,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:26:07,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:26:07,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:26:07,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:26:07,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:26:07,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:26:07,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:26:07,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:26:07,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:26:07,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:26:07,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:26:07,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:26:07,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:26:07,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:26:07,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:26:07,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:26:07,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:26:07,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:26:07,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:26:07,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:26:07,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:26:07,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:26:07,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:26:07,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-12-07 20:26:07,762 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:26:07,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:26:07,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:26:07,762 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:26:07,763 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:26:07,763 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:26:07,763 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:26:07,763 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:26:07,763 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:26:07,763 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:26:07,763 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:26:07,763 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:26:07,764 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:26:07,764 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:26:07,764 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:26:07,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:26:07,764 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 20:26:07,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:26:07,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:26:07,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:26:07,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:26:07,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:26:07,765 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 20:26:07,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:26:07,765 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:26:07,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:26:07,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:26:07,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:26:07,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:26:07,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:26:07,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:26:07,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:26:07,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:26:07,766 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:26:07,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:26:07,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:26:07,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:26:07,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:26:07,767 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/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 -> 00d107e65807c328c5ca82cfbd5c365270dccab4 [2019-12-07 20:26:07,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:26:07,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:26:07,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:26:07,877 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:26:07,878 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:26:07,878 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2019-12-07 20:26:07,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/data/b6b85fc0b/e6eb46a9abfa40f4aa48a84e6350abe7/FLAGcf10bb8e0 [2019-12-07 20:26:08,289 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:26:08,290 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8.c [2019-12-07 20:26:08,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/data/b6b85fc0b/e6eb46a9abfa40f4aa48a84e6350abe7/FLAGcf10bb8e0 [2019-12-07 20:26:08,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/data/b6b85fc0b/e6eb46a9abfa40f4aa48a84e6350abe7 [2019-12-07 20:26:08,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:26:08,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:26:08,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:26:08,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:26:08,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:26:08,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d678433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08, skipping insertion in model container [2019-12-07 20:26:08,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:26:08,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:26:08,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:26:08,821 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:26:08,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:26:08,889 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:26:08,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08 WrapperNode [2019-12-07 20:26:08,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:26:08,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:26:08,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:26:08,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:26:08,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:26:08,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:26:08,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:26:08,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:26:08,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (1/1) ... [2019-12-07 20:26:08,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:26:08,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:26:08,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:26:08,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:26:08,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:26:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:26:08,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:26:09,091 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:26:09,091 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 20:26:09,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:26:09 BoogieIcfgContainer [2019-12-07 20:26:09,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:26:09,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:26:09,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:26:09,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:26:09,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:26:08" (1/3) ... [2019-12-07 20:26:09,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699d1a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:26:09, skipping insertion in model container [2019-12-07 20:26:09,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:26:08" (2/3) ... [2019-12-07 20:26:09,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699d1a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:26:09, skipping insertion in model container [2019-12-07 20:26:09,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:26:09" (3/3) ... [2019-12-07 20:26:09,099 INFO L109 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig8.c [2019-12-07 20:26:09,105 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:26:09,110 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-12-07 20:26:09,121 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-07 20:26:09,138 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:26:09,138 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:26:09,138 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:26:09,138 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:26:09,138 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:26:09,138 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:26:09,138 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:26:09,139 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:26:09,148 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 20:26:09,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 20:26:09,152 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:26:09,152 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 20:26:09,153 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 20:26:09,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:26:09,156 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-12-07 20:26:09,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:26:09,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805849355] [2019-12-07 20:26:09,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:26:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:26:09,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:26:09,262 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805849355] [2019-12-07 20:26:09,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:26:09,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 20:26:09,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961655132] [2019-12-07 20:26:09,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:26:09,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:26:09,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:26:09,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:26:09,277 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-12-07 20:26:09,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:26:09,299 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-12-07 20:26:09,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:26:09,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-07 20:26:09,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:26:09,306 INFO L225 Difference]: With dead ends: 25 [2019-12-07 20:26:09,306 INFO L226 Difference]: Without dead ends: 22 [2019-12-07 20:26:09,308 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:26:09,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-07 20:26:09,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-12-07 20:26:09,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 20:26:09,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-12-07 20:26:09,331 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 3 [2019-12-07 20:26:09,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:26:09,331 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-12-07 20:26:09,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:26:09,331 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-12-07 20:26:09,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 20:26:09,331 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:26:09,331 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 20:26:09,332 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 20:26:09,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:26:09,332 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-12-07 20:26:09,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:26:09,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842380214] [2019-12-07 20:26:09,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:26:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:26:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:26:09,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842380214] [2019-12-07 20:26:09,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:26:09,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 20:26:09,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034145474] [2019-12-07 20:26:09,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:26:09,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:26:09,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:26:09,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:26:09,350 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2019-12-07 20:26:09,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:26:09,357 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-12-07 20:26:09,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:26:09,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 20:26:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:26:09,359 INFO L225 Difference]: With dead ends: 21 [2019-12-07 20:26:09,359 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 20:26:09,360 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:26:09,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 20:26:09,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 20:26:09,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 20:26:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-12-07 20:26:09,363 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 4 [2019-12-07 20:26:09,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:26:09,363 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-12-07 20:26:09,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:26:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-12-07 20:26:09,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 20:26:09,364 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:26:09,364 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 20:26:09,364 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 20:26:09,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:26:09,364 INFO L82 PathProgramCache]: Analyzing trace with hash 925739533, now seen corresponding path program 1 times [2019-12-07 20:26:09,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:26:09,365 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480067907] [2019-12-07 20:26:09,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:26:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:26:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:26:09,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480067907] [2019-12-07 20:26:09,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:26:09,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 20:26:09,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608849429] [2019-12-07 20:26:09,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:26:09,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:26:09,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:26:09,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:26:09,385 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 3 states. [2019-12-07 20:26:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:26:09,397 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-12-07 20:26:09,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:26:09,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 20:26:09,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:26:09,398 INFO L225 Difference]: With dead ends: 20 [2019-12-07 20:26:09,398 INFO L226 Difference]: Without dead ends: 19 [2019-12-07 20:26:09,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:26:09,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-07 20:26:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 20:26:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 20:26:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-12-07 20:26:09,401 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 6 [2019-12-07 20:26:09,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:26:09,402 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-12-07 20:26:09,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:26:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-12-07 20:26:09,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 20:26:09,402 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:26:09,402 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 20:26:09,402 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 20:26:09,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:26:09,402 INFO L82 PathProgramCache]: Analyzing trace with hash 925739853, now seen corresponding path program 1 times [2019-12-07 20:26:09,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:26:09,403 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584154208] [2019-12-07 20:26:09,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:26:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:26:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:26:09,429 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 20:26:09,429 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:26:09,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:26:09 BoogieIcfgContainer [2019-12-07 20:26:09,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:26:09,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:26:09,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:26:09,441 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:26:09,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:26:09" (3/4) ... [2019-12-07 20:26:09,443 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:26:09,469 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b37624eb-c009-4687-a064-0fb6f990b69b/bin/utaipan/witness.graphml [2019-12-07 20:26:09,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:26:09,471 INFO L168 Benchmark]: Toolchain (without parser) took 779.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 947.8 MB in the beginning and 1.0 GB in the end (delta: -82.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:26:09,471 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:26:09,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -141.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:26:09,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:26:09,472 INFO L168 Benchmark]: Boogie Preprocessor took 12.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:26:09,472 INFO L168 Benchmark]: RCFGBuilder took 160.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:26:09,473 INFO L168 Benchmark]: TraceAbstraction took 347.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:26:09,473 INFO L168 Benchmark]: Witness Printer took 28.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:26:09,475 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -141.8 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 160.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 347.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 28.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int c, u, v, w, x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] u = x [L20] v = y [L21] w = z [L22] c = 0 [L23] COND TRUE x >= y [L24] EXPR c + 1 [L24] c = c + 1 [L25] COND FALSE !(z > 1) [L29] y + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 30 SDslu, 16 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=1, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...