./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/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 b10c0555613e3e1e99ee574b69e31152fe0aa7f9 ................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:41:31,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:41:31,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:41:31,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:41:31,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:41:31,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:41:31,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:41:31,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:41:31,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:41:31,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:41:31,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:41:31,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:41:31,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:41:31,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:41:31,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:41:31,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:41:31,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:41:31,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:41:31,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:41:31,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:41:31,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:41:31,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:41:31,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:41:31,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:41:31,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:41:31,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:41:31,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:41:31,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:41:31,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:41:31,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:41:31,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:41:31,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:41:31,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:41:31,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:41:31,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:41:31,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:41:31,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:41:31,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:41:31,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:41:31,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:41:31,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:41:31,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-28 07:41:31,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:41:31,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:41:31,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:41:31,495 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:41:31,495 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:41:31,496 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:41:31,496 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:41:31,496 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:41:31,496 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:41:31,496 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:41:31,497 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:41:31,497 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:41:31,497 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:41:31,497 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:41:31,497 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:41:31,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:41:31,498 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 07:41:31,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:41:31,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:41:31,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:41:31,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:41:31,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:41:31,499 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 07:41:31,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:41:31,500 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:41:31,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:41:31,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:41:31,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:41:31,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:41:31,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:41:31,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:41:31,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:41:31,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:41:31,502 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:41:31,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:41:31,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:41:31,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:41:31,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:41:31,503 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b10c0555613e3e1e99ee574b69e31152fe0aa7f9 [2020-11-28 07:41:31,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:41:31,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:41:31,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:41:31,746 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:41:31,746 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:41:31,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2020-11-28 07:41:31,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/data/3937fa903/7b6fc28698eb4c0a88ea7faeda204555/FLAG9c0eaa71b [2020-11-28 07:41:32,222 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:41:32,223 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2020-11-28 07:41:32,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/data/3937fa903/7b6fc28698eb4c0a88ea7faeda204555/FLAG9c0eaa71b [2020-11-28 07:41:32,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/data/3937fa903/7b6fc28698eb4c0a88ea7faeda204555 [2020-11-28 07:41:32,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:41:32,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:41:32,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:32,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:41:32,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:41:32,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2823e9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32, skipping insertion in model container [2020-11-28 07:41:32,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:41:32,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:41:32,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:32,862 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:41:32,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:32,920 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:41:32,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32 WrapperNode [2020-11-28 07:41:32,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:32,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:32,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:41:32,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:41:32,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:32,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:41:32,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:41:32,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:41:32,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (1/1) ... [2020-11-28 07:41:32,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:41:33,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:41:33,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:41:33,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:41:33,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:41:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:41:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:41:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:41:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:41:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:41:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:41:33,386 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:41:33,387 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 07:41:33,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:33 BoogieIcfgContainer [2020-11-28 07:41:33,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:41:33,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:41:33,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:41:33,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:41:33,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:41:32" (1/3) ... [2020-11-28 07:41:33,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6ad815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:33, skipping insertion in model container [2020-11-28 07:41:33,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:32" (2/3) ... [2020-11-28 07:41:33,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6ad815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:33, skipping insertion in model container [2020-11-28 07:41:33,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:33" (3/3) ... [2020-11-28 07:41:33,412 INFO L111 eAbstractionObserver]: Analyzing ICFG NonTermination3-2.c [2020-11-28 07:41:33,421 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:41:33,424 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 07:41:33,437 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 07:41:33,459 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:41:33,459 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:41:33,459 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:41:33,459 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:41:33,460 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:41:33,460 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:41:33,460 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:41:33,460 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:41:33,472 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 07:41:33,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 07:41:33,477 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:33,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 07:41:33,478 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:41:33,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:33,483 INFO L82 PathProgramCache]: Analyzing trace with hash 69514, now seen corresponding path program 1 times [2020-11-28 07:41:33,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:33,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301944916] [2020-11-28 07:41:33,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:33,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:33,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301944916] [2020-11-28 07:41:33,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:33,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 07:41:33,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939374848] [2020-11-28 07:41:33,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:33,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:33,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:33,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:33,650 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-11-28 07:41:33,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:33,725 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-11-28 07:41:33,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:33,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-28 07:41:33,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:33,734 INFO L225 Difference]: With dead ends: 18 [2020-11-28 07:41:33,734 INFO L226 Difference]: Without dead ends: 9 [2020-11-28 07:41:33,737 INFO L677 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 [2020-11-28 07:41:33,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-28 07:41:33,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-11-28 07:41:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 07:41:33,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-11-28 07:41:33,767 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 3 [2020-11-28 07:41:33,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:33,768 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-11-28 07:41:33,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:33,768 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-11-28 07:41:33,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:41:33,768 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:33,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:41:33,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:41:33,769 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:41:33,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:33,770 INFO L82 PathProgramCache]: Analyzing trace with hash 2154979, now seen corresponding path program 1 times [2020-11-28 07:41:33,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:33,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650617399] [2020-11-28 07:41:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:33,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:33,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650617399] [2020-11-28 07:41:33,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:33,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 07:41:33,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477788158] [2020-11-28 07:41:33,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:33,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:33,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:33,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:33,833 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2020-11-28 07:41:33,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:33,853 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2020-11-28 07:41:33,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:33,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 07:41:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:33,854 INFO L225 Difference]: With dead ends: 8 [2020-11-28 07:41:33,854 INFO L226 Difference]: Without dead ends: 7 [2020-11-28 07:41:33,855 INFO L677 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 [2020-11-28 07:41:33,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-11-28 07:41:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-11-28 07:41:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-28 07:41:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-11-28 07:41:33,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2020-11-28 07:41:33,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:33,858 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-11-28 07:41:33,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:33,859 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-11-28 07:41:33,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:41:33,859 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:33,859 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-11-28 07:41:33,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:41:33,860 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:41:33,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:33,860 INFO L82 PathProgramCache]: Analyzing trace with hash 2070936102, now seen corresponding path program 1 times [2020-11-28 07:41:33,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:33,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770584526] [2020-11-28 07:41:33,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:33,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 07:41:33,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770584526] [2020-11-28 07:41:33,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:33,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:41:33,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805029690] [2020-11-28 07:41:33,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:33,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:33,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:33,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:33,942 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2020-11-28 07:41:33,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:33,959 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2020-11-28 07:41:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:33,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 07:41:33,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:33,961 INFO L225 Difference]: With dead ends: 7 [2020-11-28 07:41:33,961 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:41:33,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:33,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:41:33,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:41:33,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:41:33,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:41:33,963 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-11-28 07:41:33,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:33,963 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:41:33,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:33,963 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:41:33,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:41:33,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:41:33,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:41:33,986 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2020-11-28 07:41:33,987 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:41:33,987 INFO L274 CegarLoopResult]: For program point L17-2(lines 17 20) no Hoare annotation was computed. [2020-11-28 07:41:33,987 INFO L274 CegarLoopResult]: For program point L17-4(lines 9 22) no Hoare annotation was computed. [2020-11-28 07:41:33,987 INFO L277 CegarLoopResult]: At program point L17-5(lines 17 20) the Hoare annotation is: true [2020-11-28 07:41:33,987 INFO L274 CegarLoopResult]: For program point L13-2(lines 13 15) no Hoare annotation was computed. [2020-11-28 07:41:33,987 INFO L274 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-11-28 07:41:33,988 INFO L270 CegarLoopResult]: At program point L13-4(lines 13 15) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~n~0) [2020-11-28 07:41:33,988 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2020-11-28 07:41:33,988 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:41:34,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:41:34 BoogieIcfgContainer [2020-11-28 07:41:34,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:41:34,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:41:34,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:41:34,005 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:41:34,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:33" (3/4) ... [2020-11-28 07:41:34,008 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:41:34,018 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 07:41:34,019 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 07:41:34,019 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:41:34,069 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7cbda281-7beb-41c0-9ec8-4a43e1bab775/bin/utaipan/witness.graphml [2020-11-28 07:41:34,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:41:34,071 INFO L168 Benchmark]: Toolchain (without parser) took 1426.58 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 64.6 MB in the beginning and 75.2 MB in the end (delta: -10.6 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:34,072 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory is still 50.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:34,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.57 ms. Allocated memory is still 94.4 MB. Free memory was 64.4 MB in the beginning and 72.5 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:34,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.29 ms. Allocated memory is still 94.4 MB. Free memory was 72.5 MB in the beginning and 71.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:34,073 INFO L168 Benchmark]: Boogie Preprocessor took 40.16 ms. Allocated memory is still 94.4 MB. Free memory was 71.2 MB in the beginning and 70.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:34,074 INFO L168 Benchmark]: RCFGBuilder took 388.98 ms. Allocated memory is still 94.4 MB. Free memory was 70.1 MB in the beginning and 55.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:34,074 INFO L168 Benchmark]: TraceAbstraction took 613.35 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 55.0 MB in the beginning and 77.3 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:34,078 INFO L168 Benchmark]: Witness Printer took 65.54 ms. Allocated memory is still 113.2 MB. Free memory was 77.3 MB in the beginning and 75.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:34,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory is still 50.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.57 ms. Allocated memory is still 94.4 MB. Free memory was 64.4 MB in the beginning and 72.5 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.29 ms. Allocated memory is still 94.4 MB. Free memory was 72.5 MB in the beginning and 71.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.16 ms. Allocated memory is still 94.4 MB. Free memory was 71.2 MB in the beginning and 70.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 388.98 ms. Allocated memory is still 94.4 MB. Free memory was 70.1 MB in the beginning and 55.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 613.35 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 55.0 MB in the beginning and 77.3 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 65.54 ms. Allocated memory is still 113.2 MB. Free memory was 77.3 MB in the beginning and 75.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= n - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 4 SDslu, 4 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...