./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Copenhagen.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_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Copenhagen.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/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 9bcaeaea390de0d2b32b8c11c56b4b66e7b2005e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 07:25:41,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:25:41,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:25:41,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:25:41,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:25:41,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:25:41,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:25:41,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:25:41,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:25:41,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:25:41,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:25:41,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:25:41,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:25:41,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:25:41,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:25:41,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:25:41,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:25:41,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:25:41,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:25:41,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:25:41,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:25:41,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:25:41,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:25:41,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:25:41,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:25:41,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:25:41,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:25:41,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:25:41,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:25:41,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:25:41,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:25:41,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:25:41,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:25:41,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:25:41,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:25:41,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:25:41,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:25:41,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:25:41,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:25:41,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:25:41,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:25:41,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-28 07:25:41,966 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:25:41,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:25:41,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:25:41,967 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:25:41,968 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:25:41,968 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:25:41,969 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:25:41,969 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:25:41,970 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:25:41,970 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:25:41,970 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:25:41,971 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:25:41,971 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:25:41,972 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:25:41,972 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:25:41,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:25:41,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 07:25:41,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:25:41,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:25:41,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:25:41,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:25:41,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:25:41,976 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 07:25:41,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:25:41,976 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:25:41,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:25:41,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:25:41,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:25:41,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:25:41,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:25:41,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:25:41,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:25:41,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:25:41,979 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:25:41,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:25:41,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:25:41,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:25:41,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:25:41,980 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_0628fa72-8d81-4301-b9d0-230bb98198d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bcaeaea390de0d2b32b8c11c56b4b66e7b2005e [2020-11-28 07:25:42,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:25:42,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:25:42,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:25:42,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:25:42,269 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:25:42,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/../../sv-benchmarks/c/termination-crafted/Copenhagen.c [2020-11-28 07:25:42,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/data/e43e80958/2e3d1754e1df4c26b49f1079a659c668/FLAGc5b2fea27 [2020-11-28 07:25:42,816 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:25:42,817 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/sv-benchmarks/c/termination-crafted/Copenhagen.c [2020-11-28 07:25:42,826 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/data/e43e80958/2e3d1754e1df4c26b49f1079a659c668/FLAGc5b2fea27 [2020-11-28 07:25:43,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/data/e43e80958/2e3d1754e1df4c26b49f1079a659c668 [2020-11-28 07:25:43,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:25:43,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:25:43,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:25:43,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:25:43,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:25:43,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49746dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43, skipping insertion in model container [2020-11-28 07:25:43,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:25:43,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:25:43,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:25:43,379 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:25:43,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:25:43,405 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:25:43,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43 WrapperNode [2020-11-28 07:25:43,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:25:43,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:25:43,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:25:43,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:25:43,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:25:43,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:25:43,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:25:43,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:25:43,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (1/1) ... [2020-11-28 07:25:43,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:25:43,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:25:43,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:25:43,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:25:43,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/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 07:25:43,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:25:43,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:25:43,717 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:25:43,717 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 07:25:43,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:43 BoogieIcfgContainer [2020-11-28 07:25:43,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:25:43,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:25:43,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:25:43,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:25:43,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:25:43" (1/3) ... [2020-11-28 07:25:43,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eacd9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:25:43, skipping insertion in model container [2020-11-28 07:25:43,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:43" (2/3) ... [2020-11-28 07:25:43,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eacd9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:25:43, skipping insertion in model container [2020-11-28 07:25:43,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:43" (3/3) ... [2020-11-28 07:25:43,743 INFO L111 eAbstractionObserver]: Analyzing ICFG Copenhagen.c [2020-11-28 07:25:43,764 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:25:43,768 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-28 07:25:43,779 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-28 07:25:43,801 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:25:43,801 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:25:43,802 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:25:43,802 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:25:43,802 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:25:43,802 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:25:43,802 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:25:43,802 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:25:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-11-28 07:25:43,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 07:25:43,819 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:43,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 07:25:43,820 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:25:43,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:43,826 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-11-28 07:25:43,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:43,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937080644] [2020-11-28 07:25:43,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:43,975 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 07:25:43,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937080644] [2020-11-28 07:25:43,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:25:43,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 07:25:43,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050402689] [2020-11-28 07:25:43,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:25:43,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:25:43,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:25:43,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:25:43,997 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2020-11-28 07:25:44,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:44,106 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-11-28 07:25:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:25:44,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-28 07:25:44,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:44,115 INFO L225 Difference]: With dead ends: 20 [2020-11-28 07:25:44,116 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 07:25:44,118 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 07:25:44,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 07:25:44,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2020-11-28 07:25:44,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 07:25:44,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-28 07:25:44,166 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 3 [2020-11-28 07:25:44,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:44,167 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-28 07:25:44,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:25:44,167 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-28 07:25:44,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:25:44,168 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:44,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:25:44,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:25:44,169 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:25:44,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:44,174 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-11-28 07:25:44,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:44,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319947421] [2020-11-28 07:25:44,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:44,221 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 07:25:44,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319947421] [2020-11-28 07:25:44,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:25:44,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:25:44,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524730934] [2020-11-28 07:25:44,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:25:44,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:25:44,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:25:44,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:25:44,225 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2020-11-28 07:25:44,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:44,257 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-11-28 07:25:44,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:25:44,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 07:25:44,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:44,259 INFO L225 Difference]: With dead ends: 12 [2020-11-28 07:25:44,259 INFO L226 Difference]: Without dead ends: 11 [2020-11-28 07:25:44,260 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 07:25:44,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-28 07:25:44,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 07:25:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 07:25:44,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-11-28 07:25:44,263 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2020-11-28 07:25:44,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:44,263 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-11-28 07:25:44,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:25:44,263 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-11-28 07:25:44,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:25:44,264 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:44,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:25:44,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:25:44,264 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:25:44,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:44,267 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2020-11-28 07:25:44,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:44,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81064216] [2020-11-28 07:25:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:44,334 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 07:25:44,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81064216] [2020-11-28 07:25:44,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:25:44,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:25:44,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956220511] [2020-11-28 07:25:44,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:25:44,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:25:44,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:25:44,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:25:44,337 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 4 states. [2020-11-28 07:25:44,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:44,393 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-28 07:25:44,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:25:44,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-28 07:25:44,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:44,394 INFO L225 Difference]: With dead ends: 16 [2020-11-28 07:25:44,395 INFO L226 Difference]: Without dead ends: 15 [2020-11-28 07:25:44,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:25:44,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-28 07:25:44,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2020-11-28 07:25:44,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 07:25:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-28 07:25:44,398 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 5 [2020-11-28 07:25:44,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:44,399 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-28 07:25:44,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:25:44,399 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-28 07:25:44,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:25:44,399 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:44,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:25:44,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:25:44,400 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:25:44,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:44,401 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2020-11-28 07:25:44,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:44,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473434442] [2020-11-28 07:25:44,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:44,442 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 07:25:44,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473434442] [2020-11-28 07:25:44,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:25:44,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:25:44,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601298134] [2020-11-28 07:25:44,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:25:44,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:25:44,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:25:44,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:25:44,445 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2020-11-28 07:25:44,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:44,460 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-11-28 07:25:44,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:25:44,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 07:25:44,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:44,461 INFO L225 Difference]: With dead ends: 13 [2020-11-28 07:25:44,462 INFO L226 Difference]: Without dead ends: 12 [2020-11-28 07:25:44,462 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 07:25:44,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-28 07:25:44,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-28 07:25:44,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 07:25:44,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-28 07:25:44,465 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2020-11-28 07:25:44,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:44,465 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-28 07:25:44,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:25:44,466 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-28 07:25:44,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:25:44,466 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:44,466 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-11-28 07:25:44,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 07:25:44,467 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:25:44,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:44,467 INFO L82 PathProgramCache]: Analyzing trace with hash 577431471, now seen corresponding path program 1 times [2020-11-28 07:25:44,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:44,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179222735] [2020-11-28 07:25:44,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:44,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:44,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179222735] [2020-11-28 07:25:44,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:25:44,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:25:44,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57378621] [2020-11-28 07:25:44,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:25:44,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:25:44,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:25:44,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:25:44,523 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2020-11-28 07:25:44,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:44,555 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-11-28 07:25:44,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:25:44,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-28 07:25:44,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:44,556 INFO L225 Difference]: With dead ends: 12 [2020-11-28 07:25:44,556 INFO L226 Difference]: Without dead ends: 11 [2020-11-28 07:25:44,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:25:44,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-28 07:25:44,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 07:25:44,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 07:25:44,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-11-28 07:25:44,560 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2020-11-28 07:25:44,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:44,561 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-11-28 07:25:44,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:25:44,561 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-11-28 07:25:44,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:25:44,562 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:44,562 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2020-11-28 07:25:44,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 07:25:44,562 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:25:44,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:44,563 INFO L82 PathProgramCache]: Analyzing trace with hash 860863857, now seen corresponding path program 1 times [2020-11-28 07:25:44,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:44,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509561270] [2020-11-28 07:25:44,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:44,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509561270] [2020-11-28 07:25:44,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699465808] [2020-11-28 07:25:44,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/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 [2020-11-28 07:25:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:44,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 07:25:44,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:25:44,729 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:44,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:25:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:44,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [878691423] [2020-11-28 07:25:44,807 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-11-28 07:25:44,808 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:25:44,811 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:25:44,817 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:25:44,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:25:44,877 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:25:45,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-28 07:25:45,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3, 3] total 9 [2020-11-28 07:25:45,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510343128] [2020-11-28 07:25:45,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:25:45,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:25:45,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:25:45,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-28 07:25:45,031 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 5 states. [2020-11-28 07:25:45,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:45,053 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-11-28 07:25:45,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:25:45,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-28 07:25:45,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:45,055 INFO L225 Difference]: With dead ends: 11 [2020-11-28 07:25:45,055 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:25:45,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-28 07:25:45,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:25:45,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:25:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:25:45,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:25:45,057 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-28 07:25:45,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:45,057 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:25:45,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:25:45,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:25:45,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:25:45,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-28 07:25:45,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:25:45,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-28 07:25:45,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:25:45,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-28 07:25:45,299 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-28 07:25:45,299 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-11-28 07:25:45,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-11-28 07:25:45,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-28 07:25:45,299 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:25:45,299 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-11-28 07:25:45,300 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-11-28 07:25:45,300 INFO L270 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648)) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-28 07:25:45,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:25:45 BoogieIcfgContainer [2020-11-28 07:25:45,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:25:45,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:25:45,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:25:45,324 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:25:45,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:43" (3/4) ... [2020-11-28 07:25:45,328 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:25:45,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 07:25:45,339 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 07:25:45,339 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:25:45,388 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0628fa72-8d81-4301-b9d0-230bb98198d1/bin/utaipan/witness.graphml [2020-11-28 07:25:45,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:25:45,390 INFO L168 Benchmark]: Toolchain (without parser) took 2203.77 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 61.6 MB in the beginning and 60.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:45,390 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 51.3 MB in the beginning and 51.2 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:45,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.71 ms. Allocated memory is still 92.3 MB. Free memory was 61.4 MB in the beginning and 70.3 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:45,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.47 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 68.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:45,396 INFO L168 Benchmark]: Boogie Preprocessor took 18.19 ms. Allocated memory is still 92.3 MB. Free memory was 68.8 MB in the beginning and 67.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:45,397 INFO L168 Benchmark]: RCFGBuilder took 270.66 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 57.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:45,397 INFO L168 Benchmark]: TraceAbstraction took 1602.61 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 57.3 MB in the beginning and 62.7 MB in the end (delta: -5.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:45,398 INFO L168 Benchmark]: Witness Printer took 64.10 ms. Allocated memory is still 111.1 MB. Free memory was 62.7 MB in the beginning and 60.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:45,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 51.3 MB in the beginning and 51.2 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 211.71 ms. Allocated memory is still 92.3 MB. Free memory was 61.4 MB in the beginning and 70.3 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 22.47 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 68.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.19 ms. Allocated memory is still 92.3 MB. Free memory was 68.8 MB in the beginning and 67.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 270.66 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 57.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1602.61 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 57.3 MB in the beginning and 62.7 MB in the end (delta: -5.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Witness Printer took 64.10 ms. Allocated memory is still 111.1 MB. Free memory was 62.7 MB in the beginning and 60.6 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 0 <= y + 2147483648) && 0 <= x + 2147483648) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 27 SDslu, 9 SDs, 0 SdLazy, 58 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=3, 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, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 17 HoareAnnotationTreeSize, 1 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 966 SizeOfPredicates, 2 NumberOfNonLiveVariables, 31 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 2/14 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: OVERALL_TIME[ms]: 71, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 11, TOOLS_POST_TIME[ms]: 12, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 11, TOOLS_QUANTIFIERELIM_TIME[ms]: 7, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 2, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 22, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 2, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 12, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 10, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 10, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 2, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 7, DAG_COMPRESSION_PROCESSED_NODES: 45, DAG_COMPRESSION_RETAINED_NODES: 24, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...