./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbba3ede4e91b7384b0dde986cc9a2a86c4a62c3 ................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:09:02,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:09:02,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:09:02,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:09:02,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:09:02,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:09:02,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:09:02,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:09:02,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:09:02,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:09:02,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:09:02,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:09:02,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:09:02,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:09:02,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:09:02,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:09:02,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:09:02,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:09:02,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:09:02,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:09:02,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:09:02,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:09:02,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:09:02,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:09:02,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:09:02,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:09:02,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:09:02,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:09:02,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:09:02,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:09:02,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:09:02,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:09:02,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:09:02,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:09:02,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:09:02,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:09:02,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:09:02,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:09:02,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:09:02,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:09:02,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:09:02,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:09:03,000 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:09:03,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:09:03,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:09:03,001 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:09:03,001 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:09:03,001 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:09:03,002 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:09:03,002 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:09:03,002 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:09:03,002 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:09:03,002 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:09:03,002 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:09:03,003 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:09:03,003 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:09:03,003 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:09:03,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:09:03,004 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:09:03,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:09:03,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:09:03,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:09:03,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:09:03,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:09:03,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:09:03,005 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:09:03,005 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:09:03,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:09:03,006 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:09:03,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:09:03,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:09:03,006 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:09:03,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:09:03,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:09:03,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:09:03,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:09:03,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:09:03,008 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:09:03,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:09:03,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:09:03,008 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:09:03,008 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:09:03,009 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_784244eb-e6ff-4be8-b33d-2c26b038c0b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbba3ede4e91b7384b0dde986cc9a2a86c4a62c3 [2020-11-22 13:09:03,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:09:03,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:09:03,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:09:03,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:09:03,267 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:09:03,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2020-11-22 13:09:03,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/data/a24199216/d9a6de1398894d71a13f0b41bbe62b65/FLAGd909e15c2 [2020-11-22 13:09:03,726 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:09:03,726 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2020-11-22 13:09:03,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/data/a24199216/d9a6de1398894d71a13f0b41bbe62b65/FLAGd909e15c2 [2020-11-22 13:09:04,155 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/data/a24199216/d9a6de1398894d71a13f0b41bbe62b65 [2020-11-22 13:09:04,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:09:04,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:09:04,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:04,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:09:04,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:09:04,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15beb4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04, skipping insertion in model container [2020-11-22 13:09:04,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:09:04,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:09:04,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:04,391 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:09:04,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:04,420 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:09:04,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04 WrapperNode [2020-11-22 13:09:04,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:04,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:09:04,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:09:04,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:09:04,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:09:04,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:09:04,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:09:04,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:09:04,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (1/1) ... [2020-11-22 13:09:04,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:09:04,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:09:04,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:09:04,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:09:04,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/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 [2020-11-22 13:09:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:09:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:09:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:09:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:09:04,825 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:09:04,825 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-22 13:09:04,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:04 BoogieIcfgContainer [2020-11-22 13:09:04,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:09:04,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:09:04,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:09:04,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:09:04,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:04" (1/3) ... [2020-11-22 13:09:04,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9dfef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:04, skipping insertion in model container [2020-11-22 13:09:04,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:04" (2/3) ... [2020-11-22 13:09:04,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9dfef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:04, skipping insertion in model container [2020-11-22 13:09:04,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:04" (3/3) ... [2020-11-22 13:09:04,843 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2020-11-22 13:09:04,853 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:09:04,856 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:09:04,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:09:04,892 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:09:04,892 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:09:04,892 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:09:04,892 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:09:04,892 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:09:04,893 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:09:04,893 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:09:04,893 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:09:04,915 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-22 13:09:04,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:09:04,920 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:04,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:04,921 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:04,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:04,926 INFO L82 PathProgramCache]: Analyzing trace with hash -454752020, now seen corresponding path program 1 times [2020-11-22 13:09:04,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:04,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61195912] [2020-11-22 13:09:04,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:05,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:05,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61195912] [2020-11-22 13:09:05,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:05,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 13:09:05,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380672368] [2020-11-22 13:09:05,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:09:05,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:05,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:09:05,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:09:05,250 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2020-11-22 13:09:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:05,449 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-11-22 13:09:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:09:05,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-22 13:09:05,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:05,467 INFO L225 Difference]: With dead ends: 23 [2020-11-22 13:09:05,473 INFO L226 Difference]: Without dead ends: 9 [2020-11-22 13:09:05,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:09:05,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-22 13:09:05,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-22 13:09:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-22 13:09:05,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-22 13:09:05,516 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-11-22 13:09:05,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:05,516 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-22 13:09:05,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:09:05,517 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-22 13:09:05,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:09:05,517 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:05,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:05,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:09:05,519 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:05,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:05,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1214350036, now seen corresponding path program 1 times [2020-11-22 13:09:05,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:09:05,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546607388] [2020-11-22 13:09:05,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:09:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:05,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546607388] [2020-11-22 13:09:05,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031267712] [2020-11-22 13:09:05,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:09:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:05,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-22 13:09:05,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:05,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:05,906 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:09:05,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:05,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2044824799] [2020-11-22 13:09:05,981 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-11-22 13:09:05,981 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 13:09:05,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 13:09:05,990 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 13:09:05,991 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 13:09:06,534 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 13:09:06,716 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2020-11-22 13:09:06,903 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-11-22 13:09:07,087 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-11-22 13:09:07,256 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-11-22 13:09:07,447 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-11-22 13:09:07,667 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-11-22 13:09:07,670 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:09:07,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-22 13:09:07,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2020-11-22 13:09:07,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720190085] [2020-11-22 13:09:07,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-22 13:09:07,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:09:07,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-22 13:09:07,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2020-11-22 13:09:07,674 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 13 states. [2020-11-22 13:09:07,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:07,860 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-11-22 13:09:07,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:09:07,860 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 8 [2020-11-22 13:09:07,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:07,861 INFO L225 Difference]: With dead ends: 12 [2020-11-22 13:09:07,861 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:09:07,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2020-11-22 13:09:07,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:09:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:09:07,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:09:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:09:07,863 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-11-22 13:09:07,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:07,863 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:09:07,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-22 13:09:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:09:07,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:09:08,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-22 13:09:08,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:09:08,113 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:09:08,113 INFO L274 CegarLoopResult]: For program point L25(lines 25 68) no Hoare annotation was computed. [2020-11-22 13:09:08,113 INFO L274 CegarLoopResult]: For program point L19(lines 19 69) no Hoare annotation was computed. [2020-11-22 13:09:08,113 INFO L274 CegarLoopResult]: For program point L44(lines 44 66) no Hoare annotation was computed. [2020-11-22 13:09:08,114 INFO L270 CegarLoopResult]: At program point L40(lines 30 68) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__y~0)) (.cse0 (+ ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-11-22 13:09:08,114 INFO L277 CegarLoopResult]: At program point L65(lines 13 70) the Hoare annotation is: true [2020-11-22 13:09:08,114 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:09:08,114 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-22 13:09:08,114 INFO L274 CegarLoopResult]: For program point L51(lines 51 60) no Hoare annotation was computed. [2020-11-22 13:09:08,114 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-22 13:09:08,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:09:08 BoogieIcfgContainer [2020-11-22 13:09:08,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:09:08,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:09:08,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:09:08,136 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:09:08,136 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:04" (3/4) ... [2020-11-22 13:09:08,139 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:09:08,148 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-22 13:09:08,148 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 13:09:08,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:09:08,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:09:08,201 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_784244eb-e6ff-4be8-b33d-2c26b038c0b0/bin/utaipan/witness.graphml [2020-11-22 13:09:08,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:09:08,203 INFO L168 Benchmark]: Toolchain (without parser) took 4043.98 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 76.5 MB in the beginning and 90.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:08,203 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 111.1 MB. Free memory was 86.9 MB in the beginning and 86.8 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:09:08,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.67 ms. Allocated memory is still 111.1 MB. Free memory was 76.3 MB in the beginning and 87.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:08,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.12 ms. Allocated memory is still 111.1 MB. Free memory was 87.1 MB in the beginning and 85.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:08,205 INFO L168 Benchmark]: Boogie Preprocessor took 17.48 ms. Allocated memory is still 111.1 MB. Free memory was 85.7 MB in the beginning and 84.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:09:08,206 INFO L168 Benchmark]: RCFGBuilder took 356.50 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 71.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:08,207 INFO L168 Benchmark]: TraceAbstraction took 3306.16 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 70.5 MB in the beginning and 93.3 MB in the end (delta: -22.8 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:08,208 INFO L168 Benchmark]: Witness Printer took 66.42 ms. Allocated memory is still 136.3 MB. Free memory was 92.3 MB in the beginning and 90.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:08,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 111.1 MB. Free memory was 86.9 MB in the beginning and 86.8 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.67 ms. Allocated memory is still 111.1 MB. Free memory was 76.3 MB in the beginning and 87.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.12 ms. Allocated memory is still 111.1 MB. Free memory was 87.1 MB in the beginning and 85.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.48 ms. Allocated memory is still 111.1 MB. Free memory was 85.7 MB in the beginning and 84.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 356.50 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 71.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3306.16 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 70.5 MB in the beginning and 93.3 MB in the end (delta: -22.8 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Witness Printer took 66.42 ms. Allocated memory is still 136.3 MB. Free memory was 92.3 MB in the beginning and 90.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: main__x + main__j <= main__i + main__y && main__i + main__y <= main__x + main__j - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 21 SDslu, 20 SDs, 0 SdLazy, 63 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.6s 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1291 SizeOfPredicates, 8 NumberOfNonLiveVariables, 65 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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...