./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.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_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c -s /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/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 05602efd0716c9bc46b30aae12cb2e2448644d24 ................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:39:44,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:39:44,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:39:44,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:39:44,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:39:44,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:39:44,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:39:44,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:39:44,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:39:44,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:39:44,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:39:44,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:39:44,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:39:44,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:39:44,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:39:44,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:39:44,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:39:44,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:39:44,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:39:44,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:39:44,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:39:44,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:39:44,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:39:44,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:39:44,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:39:44,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:39:44,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:39:44,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:39:44,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:39:44,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:39:44,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:39:44,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:39:44,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:39:44,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:39:44,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:39:44,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:39:44,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:39:44,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:39:44,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:39:44,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:39:44,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:39:44,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-12-07 12:39:44,814 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:39:44,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:39:44,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:39:44,815 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:39:44,815 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:39:44,815 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:39:44,815 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:39:44,815 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:39:44,816 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:39:44,816 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:39:44,816 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:39:44,816 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:39:44,816 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:39:44,816 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:39:44,816 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:39:44,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:39:44,817 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:39:44,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:39:44,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:39:44,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:39:44,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:39:44,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:39:44,818 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 12:39:44,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:39:44,818 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:39:44,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:39:44,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:39:44,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:39:44,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:39:44,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:39:44,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:39:44,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:39:44,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:39:44,819 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:39:44,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:39:44,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:39:44,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:39:44,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:39:44,820 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_de2b2b1b-197f-4c5b-945d-283f460e9735/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 -> 05602efd0716c9bc46b30aae12cb2e2448644d24 [2019-12-07 12:39:44,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:39:44,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:39:44,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:39:44,930 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:39:44,930 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:39:44,931 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2019-12-07 12:39:44,973 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/data/ebf20c60a/064aa4f187524cd892b7f265f914f669/FLAGe93d78504 [2019-12-07 12:39:45,298 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:39:45,298 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2019-12-07 12:39:45,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/data/ebf20c60a/064aa4f187524cd892b7f265f914f669/FLAGe93d78504 [2019-12-07 12:39:45,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/data/ebf20c60a/064aa4f187524cd892b7f265f914f669 [2019-12-07 12:39:45,312 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:39:45,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:39:45,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:39:45,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:39:45,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:39:45,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce49fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45, skipping insertion in model container [2019-12-07 12:39:45,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:39:45,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:39:45,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:39:45,428 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:39:45,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:39:45,482 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:39:45,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45 WrapperNode [2019-12-07 12:39:45,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:39:45,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:39:45,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:39:45,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:39:45,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:39:45,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:39:45,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:39:45,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:39:45,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (1/1) ... [2019-12-07 12:39:45,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:39:45,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:39:45,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:39:45,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:39:45,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/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 12:39:45,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:39:45,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:39:45,657 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:39:45,658 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 12:39:45,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:39:45 BoogieIcfgContainer [2019-12-07 12:39:45,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:39:45,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:39:45,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:39:45,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:39:45,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:39:45" (1/3) ... [2019-12-07 12:39:45,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dcdfe5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:39:45, skipping insertion in model container [2019-12-07 12:39:45,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:39:45" (2/3) ... [2019-12-07 12:39:45,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dcdfe5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:39:45, skipping insertion in model container [2019-12-07 12:39:45,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:39:45" (3/3) ... [2019-12-07 12:39:45,663 INFO L109 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2019-12-07 12:39:45,670 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:39:45,674 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 12:39:45,681 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 12:39:45,696 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:39:45,696 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:39:45,696 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:39:45,696 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:39:45,696 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:39:45,696 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:39:45,697 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:39:45,697 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:39:45,705 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-12-07 12:39:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 12:39:45,709 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:39:45,709 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 12:39:45,709 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 12:39:45,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:39:45,713 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-12-07 12:39:45,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:39:45,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264254968] [2019-12-07 12:39:45,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:39:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:39:45,814 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 12:39:45,815 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264254968] [2019-12-07 12:39:45,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:39:45,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:39:45,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257884636] [2019-12-07 12:39:45,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:39:45,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:39:45,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:39:45,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:39:45,829 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2019-12-07 12:39:45,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:39:45,869 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-12-07 12:39:45,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:39:45,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-12-07 12:39:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:39:45,879 INFO L225 Difference]: With dead ends: 13 [2019-12-07 12:39:45,879 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 12:39:45,882 INFO L630 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 [2019-12-07 12:39:45,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 12:39:45,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2019-12-07 12:39:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 12:39:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-12-07 12:39:45,904 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 3 [2019-12-07 12:39:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:39:45,905 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-12-07 12:39:45,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:39:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-12-07 12:39:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 12:39:45,905 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:39:45,905 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 12:39:45,905 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 12:39:45,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:39:45,906 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-12-07 12:39:45,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:39:45,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74277574] [2019-12-07 12:39:45,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:39:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:39:45,924 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 12:39:45,924 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74277574] [2019-12-07 12:39:45,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:39:45,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 12:39:45,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811517883] [2019-12-07 12:39:45,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:39:45,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:39:45,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:39:45,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:39:45,926 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2019-12-07 12:39:45,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:39:45,932 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-12-07 12:39:45,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:39:45,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 12:39:45,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:39:45,933 INFO L225 Difference]: With dead ends: 8 [2019-12-07 12:39:45,933 INFO L226 Difference]: Without dead ends: 7 [2019-12-07 12:39:45,934 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 12:39:45,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-07 12:39:45,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 12:39:45,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 12:39:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-12-07 12:39:45,935 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-12-07 12:39:45,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:39:45,936 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-12-07 12:39:45,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:39:45,936 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-12-07 12:39:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 12:39:45,936 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:39:45,936 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-07 12:39:45,936 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 12:39:45,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:39:45,936 INFO L82 PathProgramCache]: Analyzing trace with hash 925739309, now seen corresponding path program 1 times [2019-12-07 12:39:45,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:39:45,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633867021] [2019-12-07 12:39:45,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:39:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:39:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:39:45,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633867021] [2019-12-07 12:39:45,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438634991] [2019-12-07 12:39:45,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/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 [2019-12-07 12:39:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:39:46,003 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:39:46,006 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:39:46,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:39:46,020 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:39:46,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:39:46,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [398649448] [2019-12-07 12:39:46,045 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2019-12-07 12:39:46,046 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 12:39:46,050 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 12:39:46,054 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 12:39:46,055 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 12:39:46,087 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 12:39:46,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-12-07 12:39:46,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3, 3, 3] total 5 [2019-12-07 12:39:46,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671300640] [2019-12-07 12:39:46,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:39:46,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:39:46,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:39:46,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:39:46,148 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-12-07 12:39:46,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:39:46,155 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-12-07 12:39:46,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:39:46,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-12-07 12:39:46,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:39:46,156 INFO L225 Difference]: With dead ends: 7 [2019-12-07 12:39:46,156 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:39:46,156 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:39:46,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:39:46,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:39:46,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:39:46,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:39:46,157 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-12-07 12:39:46,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:39:46,157 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:39:46,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:39:46,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:39:46,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:39:46,358 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:39:46,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 12:39:46,398 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-12-07 12:39:46,398 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 12:39:46,399 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2019-12-07 12:39:46,399 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 12:39:46,399 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-12-07 12:39:46,399 INFO L246 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-12-07 12:39:46,399 INFO L242 CegarLoopResult]: At program point L27-2(lines 27 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~z~0 2147483648)) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~z~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648)) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-12-07 12:39:46,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:39:46 BoogieIcfgContainer [2019-12-07 12:39:46,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:39:46,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:39:46,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:39:46,421 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:39:46,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:39:45" (3/4) ... [2019-12-07 12:39:46,424 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:39:46,434 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 12:39:46,434 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 12:39:46,434 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 12:39:46,465 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_de2b2b1b-197f-4c5b-945d-283f460e9735/bin/utaipan/witness.graphml [2019-12-07 12:39:46,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:39:46,466 INFO L168 Benchmark]: Toolchain (without parser) took 1152.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 941.4 MB in the beginning and 1.0 GB in the end (delta: -72.5 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:39:46,466 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:39:46,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:39:46,467 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.08 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 12:39:46,467 INFO L168 Benchmark]: Boogie Preprocessor took 11.47 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 12:39:46,468 INFO L168 Benchmark]: RCFGBuilder took 142.85 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:39:46,468 INFO L168 Benchmark]: TraceAbstraction took 761.55 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: 59.7 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:39:46,469 INFO L168 Benchmark]: Witness Printer took 43.89 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 12:39:46,471 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 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.08 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 11.47 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. * RCFGBuilder took 142.85 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 761.55 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: 59.7 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. * Witness Printer took 43.89 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: - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: 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: 27]: Loop Invariant Derived loop invariant: ((((x <= 2147483647 && 0 <= z + 2147483648) && 0 <= x + 2147483648) && z <= 2147483647) && 0 <= y + 2147483648) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 2 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 10 SDslu, 2 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 25 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 3 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 42, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 3, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 7, TOOLS_POST_TIME[ms]: 6, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 7, TOOLS_QUANTIFIERELIM_TIME[ms]: 4, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 2, FLUID_QUERY_TIME[ms]: 2, FLUID_QUERIES: 16, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 1, DOMAIN_ISBOTTOM_APPLICATIONS: 3, DOMAIN_ISBOTTOM_TIME[ms]: 3, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 6, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 6, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 2, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 5, DAG_COMPRESSION_PROCESSED_NODES: 28, DAG_COMPRESSION_RETAINED_NODES: 18, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...