./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI --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 87d0ba70ff123101875b88252c232be93381362a ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:33,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:33,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:33,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:33,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:33,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:33,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:33,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:33,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:33,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:33,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:33,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:33,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:33,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:33,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:33,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:33,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:33,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:33,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:33,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:33,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:33,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:33,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:33,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:33,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:33,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:33,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:33,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:33,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:33,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:33,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:33,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:33,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:33,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:33,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:33,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:33,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:33,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:33,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:33,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:33,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:33,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-11 02:32:33,963 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:33,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:33,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:33,965 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:33,965 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:33,965 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:33,965 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:33,965 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:33,966 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:33,966 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:33,967 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:33,967 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:33,968 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:33,968 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:33,968 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:33,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:33,969 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:32:33,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:33,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:33,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:33,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:33,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:33,971 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:32:33,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:33,971 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:33,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:33,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:33,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:33,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:33,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:33,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:33,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:33,974 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:33,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:33,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:33,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:33,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:33,976 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_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87d0ba70ff123101875b88252c232be93381362a [2021-10-11 02:32:34,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:34,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:34,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:34,258 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:34,259 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:34,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2021-10-11 02:32:34,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/data/cf2fd6392/bacb64533d1140f1a1ba8129de7a60aa/FLAG1325b8bc8 [2021-10-11 02:32:34,776 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:34,777 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2021-10-11 02:32:34,799 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/data/cf2fd6392/bacb64533d1140f1a1ba8129de7a60aa/FLAG1325b8bc8 [2021-10-11 02:32:35,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/data/cf2fd6392/bacb64533d1140f1a1ba8129de7a60aa [2021-10-11 02:32:35,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:35,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:35,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:35,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:35,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:35,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2b31bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35, skipping insertion in model container [2021-10-11 02:32:35,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:35,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:35,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:35,493 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:35,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:35,520 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:35,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35 WrapperNode [2021-10-11 02:32:35,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:35,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:35,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:35,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:35,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:35,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:35,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:35,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:35,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:35,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:35,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:35,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:35,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:32:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure le [2021-10-11 02:32:35,663 INFO L138 BoogieDeclarations]: Found implementation of procedure le [2021-10-11 02:32:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:35,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:35,837 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:35,838 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:32:35,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:35 BoogieIcfgContainer [2021-10-11 02:32:35,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:35,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:35,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:35,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:35,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:35" (1/3) ... [2021-10-11 02:32:35,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67acaf41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:35, skipping insertion in model container [2021-10-11 02:32:35,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (2/3) ... [2021-10-11 02:32:35,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67acaf41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:35, skipping insertion in model container [2021-10-11 02:32:35,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:35" (3/3) ... [2021-10-11 02:32:35,866 INFO L111 eAbstractionObserver]: Analyzing ICFG LeUserDefRec.c [2021-10-11 02:32:35,888 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:35,891 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-10-11 02:32:35,903 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-11 02:32:35,927 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:35,927 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:35,928 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:35,928 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:35,928 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:35,928 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:35,928 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:35,929 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:35,944 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2021-10-11 02:32:35,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:32:35,949 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:35,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:35,950 INFO L429 AbstractCegarLoop]: === Iteration 1 === [leErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:32:35,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:35,956 INFO L82 PathProgramCache]: Analyzing trace with hash 306322899, now seen corresponding path program 1 times [2021-10-11 02:32:35,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:35,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115489341] [2021-10-11 02:32:35,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:36,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115489341] [2021-10-11 02:32:36,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:36,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:36,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763881015] [2021-10-11 02:32:36,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:36,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:36,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:36,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:36,244 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2021-10-11 02:32:36,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:36,362 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-10-11 02:32:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:36,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2021-10-11 02:32:36,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:36,381 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:32:36,381 INFO L226 Difference]: Without dead ends: 14 [2021-10-11 02:32:36,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:36,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-11 02:32:36,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-11 02:32:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-11 02:32:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-10-11 02:32:36,422 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2021-10-11 02:32:36,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:36,423 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-10-11 02:32:36,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:36,423 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-10-11 02:32:36,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:32:36,424 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:36,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:36,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:36,425 INFO L429 AbstractCegarLoop]: === Iteration 2 === [leErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:32:36,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:36,429 INFO L82 PathProgramCache]: Analyzing trace with hash 906075314, now seen corresponding path program 1 times [2021-10-11 02:32:36,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:36,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573204236] [2021-10-11 02:32:36,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:36,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573204236] [2021-10-11 02:32:36,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:36,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:36,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784859994] [2021-10-11 02:32:36,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:36,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:36,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:36,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:36,501 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 3 states. [2021-10-11 02:32:36,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:36,511 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-10-11 02:32:36,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:36,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-10-11 02:32:36,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:36,513 INFO L225 Difference]: With dead ends: 14 [2021-10-11 02:32:36,514 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 02:32:36,515 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 [2021-10-11 02:32:36,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 02:32:36,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 02:32:36,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:32:36,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-11 02:32:36,525 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2021-10-11 02:32:36,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:36,527 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-11 02:32:36,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-11 02:32:36,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:32:36,528 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:36,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:36,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:32:36,531 INFO L429 AbstractCegarLoop]: === Iteration 3 === [leErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:32:36,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:36,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1976436299, now seen corresponding path program 1 times [2021-10-11 02:32:36,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:36,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137754204] [2021-10-11 02:32:36,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:36,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:36,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137754204] [2021-10-11 02:32:36,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:36,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:36,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220741132] [2021-10-11 02:32:36,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:36,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:36,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:36,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:36,599 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2021-10-11 02:32:36,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:36,634 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-10-11 02:32:36,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:36,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-10-11 02:32:36,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:36,639 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:32:36,639 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 02:32:36,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:36,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 02:32:36,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 02:32:36,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 02:32:36,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-10-11 02:32:36,643 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2021-10-11 02:32:36,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:36,643 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-10-11 02:32:36,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:36,643 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-10-11 02:32:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:32:36,644 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:36,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:36,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:32:36,645 INFO L429 AbstractCegarLoop]: === Iteration 4 === [leErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:32:36,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:36,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1139983084, now seen corresponding path program 1 times [2021-10-11 02:32:36,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:36,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945605072] [2021-10-11 02:32:36,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:36,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945605072] [2021-10-11 02:32:36,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:36,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:36,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506274887] [2021-10-11 02:32:36,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:36,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:36,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:36,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:36,675 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2021-10-11 02:32:36,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:36,681 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-10-11 02:32:36,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:36,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-10-11 02:32:36,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:36,682 INFO L225 Difference]: With dead ends: 12 [2021-10-11 02:32:36,682 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:32:36,683 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 [2021-10-11 02:32:36,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:32:36,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:32:36,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:32:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:32:36,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-11 02:32:36,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:36,684 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:32:36,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:36,684 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:32:36,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:32:36,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:32:36,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:32:36,774 INFO L262 CegarLoopResult]: For program point leFINAL(lines 41 47) no Hoare annotation was computed. [2021-10-11 02:32:36,774 INFO L262 CegarLoopResult]: For program point leEXIT(lines 41 47) no Hoare annotation was computed. [2021-10-11 02:32:36,774 INFO L265 CegarLoopResult]: At program point leENTRY(lines 41 47) the Hoare annotation is: true [2021-10-11 02:32:36,775 INFO L262 CegarLoopResult]: For program point leErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2021-10-11 02:32:36,775 INFO L262 CegarLoopResult]: For program point leErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2021-10-11 02:32:36,775 INFO L262 CegarLoopResult]: For program point leErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2021-10-11 02:32:36,775 INFO L262 CegarLoopResult]: For program point leErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2021-10-11 02:32:36,775 INFO L262 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-11 02:32:36,776 INFO L262 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-10-11 02:32:36,776 INFO L262 CegarLoopResult]: For program point L43-1(line 43) no Hoare annotation was computed. [2021-10-11 02:32:36,776 INFO L262 CegarLoopResult]: For program point L43-2(line 43) no Hoare annotation was computed. [2021-10-11 02:32:36,776 INFO L262 CegarLoopResult]: For program point L43-3(line 43) no Hoare annotation was computed. [2021-10-11 02:32:36,776 INFO L258 CegarLoopResult]: At program point L43-4(line 43) the Hoare annotation is: (or (not (<= |le_#in~x| 2147483647)) (and (<= 1 le_~y) (<= le_~y 2147483647) (<= 1 le_~x) (<= le_~x 2147483647)) (not (<= |le_#in~y| 2147483647))) [2021-10-11 02:32:36,777 INFO L262 CegarLoopResult]: For program point L43-5(line 43) no Hoare annotation was computed. [2021-10-11 02:32:36,777 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:32:36,777 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:32:36,777 INFO L258 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-10-11 02:32:36,777 INFO L262 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-10-11 02:32:36,778 INFO L262 CegarLoopResult]: For program point L26(lines 26 27) no Hoare annotation was computed. [2021-10-11 02:32:36,778 INFO L262 CegarLoopResult]: For program point L23(lines 23 24) no Hoare annotation was computed. [2021-10-11 02:32:36,778 INFO L258 CegarLoopResult]: At program point L21(lines 21 31) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-10-11 02:32:36,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:36 BoogieIcfgContainer [2021-10-11 02:32:36,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:36,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:36,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:36,793 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:36,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:35" (3/4) ... [2021-10-11 02:32:36,796 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:32:36,802 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure le [2021-10-11 02:32:36,806 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:32:36,807 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 02:32:36,847 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052ebfb9-ba9f-400e-ada6-45c686e13a4a/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:36,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:36,849 INFO L168 Benchmark]: Toolchain (without parser) took 1544.00 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 51.3 MB in the beginning and 59.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:36,850 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:36,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.25 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 51.2 MB in the beginning and 84.3 MB in the end (delta: -33.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:36,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.05 ms. Allocated memory is still 107.0 MB. Free memory was 84.3 MB in the beginning and 83.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:36,852 INFO L168 Benchmark]: Boogie Preprocessor took 16.00 ms. Allocated memory is still 107.0 MB. Free memory was 83.1 MB in the beginning and 82.3 MB in the end (delta: 831.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:36,852 INFO L168 Benchmark]: RCFGBuilder took 281.07 ms. Allocated memory is still 107.0 MB. Free memory was 81.9 MB in the beginning and 71.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:36,853 INFO L168 Benchmark]: TraceAbstraction took 939.28 ms. Allocated memory is still 107.0 MB. Free memory was 71.0 MB in the beginning and 61.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:36,853 INFO L168 Benchmark]: Witness Printer took 54.44 ms. Allocated memory is still 107.0 MB. Free memory was 61.8 MB in the beginning and 59.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:36,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 217.25 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 51.2 MB in the beginning and 84.3 MB in the end (delta: -33.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.05 ms. Allocated memory is still 107.0 MB. Free memory was 84.3 MB in the beginning and 83.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.00 ms. Allocated memory is still 107.0 MB. Free memory was 83.1 MB in the beginning and 82.3 MB in the end (delta: 831.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 281.07 ms. Allocated memory is still 107.0 MB. Free memory was 81.9 MB in the beginning and 71.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 939.28 ms. Allocated memory is still 107.0 MB. Free memory was 71.0 MB in the beginning and 61.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * Witness Printer took 54.44 ms. Allocated memory is still 107.0 MB. Free memory was 61.8 MB in the beginning and 59.1 MB in the end (delta: 2.7 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: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: 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: 21]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 42 SDslu, 36 SDs, 0 SdLazy, 47 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 33 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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...