./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF --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 626f3da6fd18561761a79d5d72b6e4952ec90284e3abc32807b89f761ebfb898 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:39:59,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:39:59,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:39:59,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:39:59,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:39:59,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:39:59,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:39:59,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:39:59,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:39:59,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:39:59,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:39:59,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:39:59,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:39:59,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:39:59,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:39:59,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:39:59,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:39:59,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:39:59,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:39:59,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:39:59,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:39:59,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:39:59,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:39:59,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:39:59,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:39:59,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:39:59,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:39:59,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:39:59,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:39:59,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:39:59,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:39:59,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:39:59,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:39:59,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:39:59,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:39:59,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:39:59,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:39:59,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:39:59,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:39:59,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:39:59,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:39:59,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-13 02:39:59,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:39:59,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:39:59,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:39:59,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:39:59,922 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:39:59,923 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:39:59,923 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:39:59,924 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:39:59,924 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:39:59,925 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:39:59,925 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:39:59,925 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:39:59,926 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:39:59,926 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:39:59,927 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:39:59,927 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:39:59,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:39:59,929 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 02:39:59,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:39:59,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:39:59,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:39:59,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:39:59,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:39:59,931 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 02:39:59,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:39:59,932 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:39:59,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:39:59,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:39:59,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:39:59,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:39:59,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:39:59,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:39:59,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:39:59,944 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:39:59,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:39:59,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:39:59,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:39:59,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:39:59,947 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_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 626f3da6fd18561761a79d5d72b6e4952ec90284e3abc32807b89f761ebfb898 [2021-11-13 02:40:00,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:40:00,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:40:00,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:40:00,299 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:40:00,300 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:40:00,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2021-11-13 02:40:00,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/data/b1c29512b/0bffe8b3268e44609eecdc50ff445e38/FLAG9d7b157a1 [2021-11-13 02:40:00,985 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:40:00,986 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2021-11-13 02:40:00,993 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/data/b1c29512b/0bffe8b3268e44609eecdc50ff445e38/FLAG9d7b157a1 [2021-11-13 02:40:01,381 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/data/b1c29512b/0bffe8b3268e44609eecdc50ff445e38 [2021-11-13 02:40:01,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:40:01,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:40:01,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:40:01,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:40:01,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:40:01,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3761d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01, skipping insertion in model container [2021-11-13 02:40:01,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:40:01,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:40:01,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:40:01,650 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:40:01,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:40:01,701 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:40:01,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01 WrapperNode [2021-11-13 02:40:01,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:40:01,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:40:01,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:40:01,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:40:01,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:40:01,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:40:01,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:40:01,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:40:01,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:40:01,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:40:01,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:40:01,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:40:01,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (1/1) ... [2021-11-13 02:40:01,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:40:01,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:40:01,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:40:01,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:40:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:40:01,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:40:02,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:40:02,169 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 02:40:02,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:02 BoogieIcfgContainer [2021-11-13 02:40:02,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:40:02,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:40:02,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:40:02,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:40:02,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:40:01" (1/3) ... [2021-11-13 02:40:02,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282bb606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:40:02, skipping insertion in model container [2021-11-13 02:40:02,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:01" (2/3) ... [2021-11-13 02:40:02,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282bb606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:40:02, skipping insertion in model container [2021-11-13 02:40:02,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:02" (3/3) ... [2021-11-13 02:40:02,182 INFO L111 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig1.c [2021-11-13 02:40:02,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:40:02,189 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-13 02:40:02,248 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:40:02,257 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 02:40:02,258 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-13 02:40:02,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 02:40:02,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:02,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 02:40:02,283 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 02:40:02,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:02,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1947627, now seen corresponding path program 1 times [2021-11-13 02:40:02,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:40:02,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793670643] [2021-11-13 02:40:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:02,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:40:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:40:02,510 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:40:02,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793670643] [2021-11-13 02:40:02,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793670643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:02,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:40:02,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 02:40:02,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991008227] [2021-11-13 02:40:02,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:02,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:40:02,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:40:02,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:40:02,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:40:02,558 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:02,590 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2021-11-13 02:40:02,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:40:02,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-13 02:40:02,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:02,604 INFO L225 Difference]: With dead ends: 12 [2021-11-13 02:40:02,604 INFO L226 Difference]: Without dead ends: 10 [2021-11-13 02:40:02,608 INFO L932 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 [2021-11-13 02:40:02,613 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.81ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.69ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:02,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.81ms Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 15.69ms Time] [2021-11-13 02:40:02,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-13 02:40:02,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-13 02:40:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-13 02:40:02,653 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2021-11-13 02:40:02,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:02,654 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-13 02:40:02,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-13 02:40:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 02:40:02,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:02,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 02:40:02,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 02:40:02,657 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 02:40:02,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:02,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1947435, now seen corresponding path program 1 times [2021-11-13 02:40:02,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:40:02,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148535365] [2021-11-13 02:40:02,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:02,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:40:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:02,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:40:02,688 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:40:02,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148535365] [2021-11-13 02:40:02,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148535365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:02,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:40:02,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 02:40:02,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221233203] [2021-11-13 02:40:02,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:02,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:40:02,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:40:02,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:40:02,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:40:02,693 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:02,710 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-11-13 02:40:02,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:40:02,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-13 02:40:02,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:02,711 INFO L225 Difference]: With dead ends: 10 [2021-11-13 02:40:02,712 INFO L226 Difference]: Without dead ends: 9 [2021-11-13 02:40:02,712 INFO L932 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 [2021-11-13 02:40:02,715 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.53ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.40ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:02,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 7 Unknown, 0 Unchecked, 0.53ms Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 13.40ms Time] [2021-11-13 02:40:02,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-13 02:40:02,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-13 02:40:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-11-13 02:40:02,720 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2021-11-13 02:40:02,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:02,721 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-13 02:40:02,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,721 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-13 02:40:02,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 02:40:02,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:02,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 02:40:02,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 02:40:02,723 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 02:40:02,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:02,724 INFO L85 PathProgramCache]: Analyzing trace with hash 60376491, now seen corresponding path program 1 times [2021-11-13 02:40:02,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:40:02,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489377923] [2021-11-13 02:40:02,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:02,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:40:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:02,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:40:02,805 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:40:02,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489377923] [2021-11-13 02:40:02,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489377923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:02,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:40:02,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 02:40:02,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321041463] [2021-11-13 02:40:02,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:02,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:40:02,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:40:02,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:40:02,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:40:02,810 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:02,836 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-11-13 02:40:02,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:40:02,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 02:40:02,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:02,838 INFO L225 Difference]: With dead ends: 10 [2021-11-13 02:40:02,838 INFO L226 Difference]: Without dead ends: 9 [2021-11-13 02:40:02,838 INFO L932 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 [2021-11-13 02:40:02,841 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.89ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:02,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 6 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 21.89ms Time] [2021-11-13 02:40:02,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-13 02:40:02,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-11-13 02:40:02,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-13 02:40:02,856 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2021-11-13 02:40:02,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:02,856 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-13 02:40:02,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,857 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-13 02:40:02,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 02:40:02,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:02,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 02:40:02,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 02:40:02,859 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-13 02:40:02,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash 60370533, now seen corresponding path program 1 times [2021-11-13 02:40:02,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:40:02,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909996143] [2021-11-13 02:40:02,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:02,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:40:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:02,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:40:02,912 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:40:02,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909996143] [2021-11-13 02:40:02,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909996143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:40:02,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:40:02,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 02:40:02,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487373388] [2021-11-13 02:40:02,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:02,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:40:02,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:40:02,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:40:02,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:40:02,940 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:02,954 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2021-11-13 02:40:02,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:40:02,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 02:40:02,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:02,968 INFO L225 Difference]: With dead ends: 8 [2021-11-13 02:40:02,968 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 02:40:02,969 INFO L932 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 [2021-11-13 02:40:02,972 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.53ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.51ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:02,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 6 Unknown, 0 Unchecked, 0.53ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 10.51ms Time] [2021-11-13 02:40:02,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 02:40:02,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 02:40:02,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 02:40:02,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-11-13 02:40:02,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:02,978 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 02:40:02,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:40:02,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 02:40:02,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 02:40:02,982 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-11-13 02:40:02,983 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-11-13 02:40:02,983 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-11-13 02:40:02,984 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-11-13 02:40:02,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 02:40:02,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 02:40:03,021 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-11-13 02:40:03,021 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 02:40:03,022 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-11-13 02:40:03,022 INFO L858 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-11-13 02:40:03,022 INFO L858 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-11-13 02:40:03,022 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 24) no Hoare annotation was computed. [2021-11-13 02:40:03,023 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 18 25) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2021-11-13 02:40:03,023 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-11-13 02:40:03,024 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-11-13 02:40:03,024 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 02:40:03,024 INFO L858 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-11-13 02:40:03,024 INFO L858 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-11-13 02:40:03,029 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-13 02:40:03,031 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:40:03,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:40:03 BoogieIcfgContainer [2021-11-13 02:40:03,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 02:40:03,050 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 02:40:03,050 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 02:40:03,051 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 02:40:03,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:02" (3/4) ... [2021-11-13 02:40:03,055 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 02:40:03,066 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-13 02:40:03,067 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 02:40:03,067 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 02:40:03,108 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 02:40:03,108 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 02:40:03,109 INFO L158 Benchmark]: Toolchain (without parser) took 1723.10ms. Allocated memory is still 115.3MB. Free memory was 83.5MB in the beginning and 46.1MB in the end (delta: 37.4MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2021-11-13 02:40:03,109 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 115.3MB. Free memory was 69.2MB in the beginning and 69.1MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:40:03,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.29ms. Allocated memory is still 115.3MB. Free memory was 83.3MB in the beginning and 92.2MB in the end (delta: -8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 02:40:03,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.95ms. Allocated memory is still 115.3MB. Free memory was 92.2MB in the beginning and 90.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:40:03,111 INFO L158 Benchmark]: Boogie Preprocessor took 34.15ms. Allocated memory is still 115.3MB. Free memory was 90.9MB in the beginning and 89.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:40:03,112 INFO L158 Benchmark]: RCFGBuilder took 382.73ms. Allocated memory is still 115.3MB. Free memory was 89.8MB in the beginning and 80.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 02:40:03,112 INFO L158 Benchmark]: TraceAbstraction took 875.68ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 48.2MB in the end (delta: 31.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-13 02:40:03,113 INFO L158 Benchmark]: Witness Printer took 57.89ms. Allocated memory is still 115.3MB. Free memory was 48.2MB in the beginning and 46.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:40:03,116 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 115.3MB. Free memory was 69.2MB in the beginning and 69.1MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.29ms. Allocated memory is still 115.3MB. Free memory was 83.3MB in the beginning and 92.2MB in the end (delta: -8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.95ms. Allocated memory is still 115.3MB. Free memory was 92.2MB in the beginning and 90.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.15ms. Allocated memory is still 115.3MB. Free memory was 90.9MB in the beginning and 89.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.73ms. Allocated memory is still 115.3MB. Free memory was 89.8MB in the beginning and 80.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 875.68ms. Allocated memory is still 115.3MB. Free memory was 80.0MB in the beginning and 48.2MB in the end (delta: 31.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 57.89ms. Allocated memory is still 115.3MB. Free memory was 48.2MB in the beginning and 46.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 61.49ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 51.84ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 22 mSDtfsCounter, 23 mSolverCounterSat, 2.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 7 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-13 02:40:03,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07130f6d-0109-42cb-8301-3583a89b28fd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE