./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9c51224894dcd32e556532086a33c2900554a2d1 ................................................................................................................................................................................................................................................................................................................................................... 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 15:49:51,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:49:51,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:49:51,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:49:51,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:49:51,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:49:51,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:49:51,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:49:51,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:49:51,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:49:51,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:49:51,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:49:51,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:49:51,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:49:51,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:49:51,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:49:51,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:49:51,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:49:51,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:49:51,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:49:51,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:49:51,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:49:51,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:49:51,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:49:51,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:49:51,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:49:51,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:49:51,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:49:51,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:49:51,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:49:51,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:49:51,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:49:51,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:49:51,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:49:51,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:49:51,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:49:51,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:49:51,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:49:51,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:49:51,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:49:51,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:49:51,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 15:49:51,772 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:49:51,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:49:51,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:49:51,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:49:51,773 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:49:51,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:49:51,774 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:49:51,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:49:51,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:49:51,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:49:51,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:49:51,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:49:51,775 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 15:49:51,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:49:51,775 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:49:51,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:49:51,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:49:51,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:49:51,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:49:51,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:49:51,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:49:51,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:49:51,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:49:51,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:49:51,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:49:51,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:49:51,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:49:51,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:49:51,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c51224894dcd32e556532086a33c2900554a2d1 [2019-12-07 15:49:51,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:49:51,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:49:51,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:49:51,894 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:49:51,895 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:49:51,895 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Bangalore-2.c [2019-12-07 15:49:51,936 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/data/24b06bedf/f96de38fecd040369be5076c8f783111/FLAG78f80e8a7 [2019-12-07 15:49:52,257 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:49:52,258 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/sv-benchmarks/c/termination-crafted/Bangalore-2.c [2019-12-07 15:49:52,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/data/24b06bedf/f96de38fecd040369be5076c8f783111/FLAG78f80e8a7 [2019-12-07 15:49:52,271 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/data/24b06bedf/f96de38fecd040369be5076c8f783111 [2019-12-07 15:49:52,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:49:52,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:49:52,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:49:52,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:49:52,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:49:52,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8ebb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52, skipping insertion in model container [2019-12-07 15:49:52,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:49:52,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:49:52,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:49:52,404 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:49:52,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:49:52,463 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:49:52,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52 WrapperNode [2019-12-07 15:49:52,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:49:52,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:49:52,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:49:52,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:49:52,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:49:52,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:49:52,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:49:52,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:49:52,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (1/1) ... [2019-12-07 15:49:52,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:49:52,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:49:52,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:49:52,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:49:52,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:49:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:49:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:49:52,627 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:49:52,627 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 15:49:52,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:49:52 BoogieIcfgContainer [2019-12-07 15:49:52,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:49:52,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:49:52,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:49:52,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:49:52,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:49:52" (1/3) ... [2019-12-07 15:49:52,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcb3414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:49:52, skipping insertion in model container [2019-12-07 15:49:52,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:49:52" (2/3) ... [2019-12-07 15:49:52,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcb3414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:49:52, skipping insertion in model container [2019-12-07 15:49:52,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:49:52" (3/3) ... [2019-12-07 15:49:52,632 INFO L109 eAbstractionObserver]: Analyzing ICFG Bangalore-2.c [2019-12-07 15:49:52,639 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:49:52,643 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 15:49:52,650 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 15:49:52,664 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:49:52,664 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:49:52,664 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:49:52,664 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:49:52,664 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:49:52,664 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:49:52,664 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:49:52,664 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:49:52,673 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-07 15:49:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 15:49:52,676 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:49:52,677 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 15:49:52,677 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 15:49:52,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:49:52,680 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2019-12-07 15:49:52,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:49:52,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071805975] [2019-12-07 15:49:52,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:49:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:49:52,782 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 15:49:52,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071805975] [2019-12-07 15:49:52,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:49:52,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:49:52,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819575683] [2019-12-07 15:49:52,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:49:52,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:49:52,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:49:52,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:49:52,797 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2019-12-07 15:49:52,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:49:52,850 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2019-12-07 15:49:52,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:49:52,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 15:49:52,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:49:52,858 INFO L225 Difference]: With dead ends: 28 [2019-12-07 15:49:52,858 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 15:49:52,860 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 15:49:52,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 15:49:52,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 9. [2019-12-07 15:49:52,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 15:49:52,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-12-07 15:49:52,882 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2019-12-07 15:49:52,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:49:52,882 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-12-07 15:49:52,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:49:52,883 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-12-07 15:49:52,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 15:49:52,883 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:49:52,883 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 15:49:52,883 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 15:49:52,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:49:52,883 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2019-12-07 15:49:52,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:49:52,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360602362] [2019-12-07 15:49:52,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:49:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:49:52,905 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 15:49:52,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360602362] [2019-12-07 15:49:52,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:49:52,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:49:52,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967398770] [2019-12-07 15:49:52,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:49:52,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:49:52,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:49:52,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:49:52,908 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-12-07 15:49:52,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:49:52,924 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-12-07 15:49:52,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:49:52,925 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 15:49:52,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:49:52,925 INFO L225 Difference]: With dead ends: 9 [2019-12-07 15:49:52,925 INFO L226 Difference]: Without dead ends: 8 [2019-12-07 15:49:52,926 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 15:49:52,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-12-07 15:49:52,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-12-07 15:49:52,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 15:49:52,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-12-07 15:49:52,928 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-12-07 15:49:52,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:49:52,928 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-12-07 15:49:52,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:49:52,928 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-12-07 15:49:52,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 15:49:52,928 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:49:52,928 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-12-07 15:49:52,929 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 15:49:52,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:49:52,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1537667284, now seen corresponding path program 1 times [2019-12-07 15:49:52,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:49:52,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962135418] [2019-12-07 15:49:52,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:49:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:49:52,958 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 15:49:52,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962135418] [2019-12-07 15:49:52,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946180376] [2019-12-07 15:49:52,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/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 15:49:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:49:52,981 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:49:52,986 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:49:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:49:53,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 15:49:53,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2019-12-07 15:49:53,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421069810] [2019-12-07 15:49:53,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:49:53,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:49:53,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:49:53,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:49:53,030 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2019-12-07 15:49:53,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:49:53,046 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-12-07 15:49:53,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:49:53,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-12-07 15:49:53,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:49:53,046 INFO L225 Difference]: With dead ends: 9 [2019-12-07 15:49:53,047 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:49:53,047 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:49:53,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:49:53,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:49:53,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:49:53,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:49:53,048 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 15:49:53,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:49:53,048 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:49:53,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:49:53,048 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:49:53,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:49:53,249 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:49:53,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 15:49:53,286 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 15:49:53,286 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 15:49:53,286 INFO L242 CegarLoopResult]: At program point L23(lines 13 24) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-12-07 15:49:53,286 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-12-07 15:49:53,286 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 15:49:53,286 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 15:49:53,287 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 15:49:53,287 INFO L246 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2019-12-07 15:49:53,287 INFO L246 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-12-07 15:49:53,287 INFO L246 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2019-12-07 15:49:53,287 INFO L246 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2019-12-07 15:49:53,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:49:53 BoogieIcfgContainer [2019-12-07 15:49:53,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:49:53,298 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:49:53,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:49:53,298 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:49:53,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:49:52" (3/4) ... [2019-12-07 15:49:53,300 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:49:53,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 15:49:53,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 15:49:53,337 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b62eef84-4e80-44d9-b378-bb32e78edc31/bin/uautomizer/witness.graphml [2019-12-07 15:49:53,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:49:53,339 INFO L168 Benchmark]: Toolchain (without parser) took 1063.80 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 928.7 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:49:53,339 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:49:53,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.51 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 1.0 GB in the end (delta: -59.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:49:53,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.96 ms. Allocated memory is still 1.0 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:49:53,340 INFO L168 Benchmark]: Boogie Preprocessor took 11.61 ms. Allocated memory is still 1.0 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:49:53,341 INFO L168 Benchmark]: RCFGBuilder took 126.86 ms. Allocated memory is still 1.0 GB. Free memory was 1.0 GB in the beginning and 984.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:49:53,341 INFO L168 Benchmark]: TraceAbstraction took 668.77 ms. Allocated memory is still 1.0 GB. Free memory was 984.6 MB in the beginning and 928.7 MB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:49:53,341 INFO L168 Benchmark]: Witness Printer took 39.61 ms. Allocated memory is still 1.0 GB. Free memory is still 928.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:49:53,344 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.51 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 1.0 GB in the end (delta: -59.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.96 ms. Allocated memory is still 1.0 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.61 ms. Allocated memory is still 1.0 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 126.86 ms. Allocated memory is still 1.0 GB. Free memory was 1.0 GB in the beginning and 984.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 668.77 ms. Allocated memory is still 1.0 GB. Free memory was 984.6 MB in the beginning and 928.7 MB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. * Witness Printer took 39.61 ms. Allocated memory is still 1.0 GB. Free memory is still 928.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 1 <= y) && y <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 28 SDslu, 3 SDs, 0 SdLazy, 36 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 499 SizeOfPredicates, 0 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 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 correct! Received shutdown request...