./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a51de0cc692889b99da17b0d1ffe250fa4a5bddd ....................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:31:48,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:31:48,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:31:48,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:31:48,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:31:48,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:31:48,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:31:48,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:31:48,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:31:48,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:31:48,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:31:48,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:31:48,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:31:48,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:31:48,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:31:48,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:31:48,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:31:48,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:31:48,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:31:48,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:31:48,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:31:49,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:31:49,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:31:49,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:31:49,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:31:49,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:31:49,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:31:49,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:31:49,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:31:49,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:31:49,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:31:49,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:31:49,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:31:49,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:31:49,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:31:49,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:31:49,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:31:49,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:31:49,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:31:49,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:31:49,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:31:49,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-03 12:31:49,083 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:31:49,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:31:49,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:31:49,085 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:31:49,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:31:49,085 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:31:49,086 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:31:49,086 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:31:49,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:31:49,086 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:31:49,087 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:31:49,088 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:31:49,088 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:31:49,088 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:31:49,088 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:31:49,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:31:49,090 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:31:49,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:31:49,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:31:49,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:31:49,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:31:49,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:31:49,091 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 12:31:49,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:31:49,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:31:49,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:31:49,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:31:49,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:31:49,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:31:49,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:31:49,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:31:49,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:31:49,094 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:31:49,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:31:49,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:31:49,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:31:49,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:31:49,095 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a51de0cc692889b99da17b0d1ffe250fa4a5bddd [2020-12-03 12:31:49,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:31:49,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:31:49,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:31:49,408 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:31:49,408 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:31:49,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/../../sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i [2020-12-03 12:31:49,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/data/0d8b28114/4d62db26a86d4610b67565f78a8a7a23/FLAG98a109b5e [2020-12-03 12:31:49,989 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:31:49,989 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i [2020-12-03 12:31:49,999 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/data/0d8b28114/4d62db26a86d4610b67565f78a8a7a23/FLAG98a109b5e [2020-12-03 12:31:50,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/data/0d8b28114/4d62db26a86d4610b67565f78a8a7a23 [2020-12-03 12:31:50,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:31:50,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:31:50,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:31:50,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:31:50,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:31:50,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f0b678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50, skipping insertion in model container [2020-12-03 12:31:50,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:31:50,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:31:50,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:31:50,671 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:31:50,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:31:50,758 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:31:50,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50 WrapperNode [2020-12-03 12:31:50,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:31:50,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:31:50,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:31:50,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:31:50,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:31:50,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:31:50,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:31:50,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:31:50,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (1/1) ... [2020-12-03 12:31:50,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:31:50,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:31:50,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:31:50,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:31:50,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:31:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:31:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:31:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:31:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:31:51,199 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:31:51,200 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-03 12:31:51,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:51 BoogieIcfgContainer [2020-12-03 12:31:51,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:31:51,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:31:51,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:31:51,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:31:51,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:31:50" (1/3) ... [2020-12-03 12:31:51,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b60d2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:31:51, skipping insertion in model container [2020-12-03 12:31:51,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:50" (2/3) ... [2020-12-03 12:31:51,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b60d2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:31:51, skipping insertion in model container [2020-12-03 12:31:51,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:51" (3/3) ... [2020-12-03 12:31:51,213 INFO L111 eAbstractionObserver]: Analyzing ICFG NoConversion.i [2020-12-03 12:31:51,230 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:31:51,234 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 12:31:51,245 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 12:31:51,277 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:31:51,277 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:31:51,278 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:31:51,278 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:31:51,278 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:31:51,278 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:31:51,279 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:31:51,279 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:31:51,292 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-12-03 12:31:51,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-03 12:31:51,298 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:31:51,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-12-03 12:31:51,300 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-03 12:31:51,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:31:51,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1212, now seen corresponding path program 1 times [2020-12-03 12:31:51,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:31:51,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541173371] [2020-12-03 12:31:51,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:31:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:31:51,394 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:31:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:31:51,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:31:51,436 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-03 12:31:51,437 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 12:31:51,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:31:51,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:31:51 BoogieIcfgContainer [2020-12-03 12:31:51,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:31:51,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:31:51,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:31:51,455 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:31:51,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:51" (3/4) ... [2020-12-03 12:31:51,459 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 12:31:51,494 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d88e8d56-6278-4f63-a1eb-7f30923e2f3f/bin/utaipan/witness.graphml [2020-12-03 12:31:51,495 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:31:51,497 INFO L168 Benchmark]: Toolchain (without parser) took 1149.96 ms. Allocated memory is still 98.6 MB. Free memory was 66.4 MB in the beginning and 39.9 MB in the end (delta: 26.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:31:51,498 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 75.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:31:51,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.65 ms. Allocated memory is still 98.6 MB. Free memory was 66.1 MB in the beginning and 67.7 MB in the end (delta: -1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:31:51,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.80 ms. Allocated memory is still 98.6 MB. Free memory was 67.7 MB in the beginning and 66.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:31:51,500 INFO L168 Benchmark]: Boogie Preprocessor took 20.32 ms. Allocated memory is still 98.6 MB. Free memory was 66.1 MB in the beginning and 65.1 MB in the end (delta: 963.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:31:51,501 INFO L168 Benchmark]: RCFGBuilder took 381.66 ms. Allocated memory is still 98.6 MB. Free memory was 65.1 MB in the beginning and 53.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-03 12:31:51,501 INFO L168 Benchmark]: TraceAbstraction took 249.52 ms. Allocated memory is still 98.6 MB. Free memory was 52.5 MB in the beginning and 41.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-03 12:31:51,502 INFO L168 Benchmark]: Witness Printer took 40.38 ms. Allocated memory is still 98.6 MB. Free memory was 41.4 MB in the beginning and 39.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:31:51,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 75.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 402.65 ms. Allocated memory is still 98.6 MB. Free memory was 66.1 MB in the beginning and 67.7 MB in the end (delta: -1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.80 ms. Allocated memory is still 98.6 MB. Free memory was 67.7 MB in the beginning and 66.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.32 ms. Allocated memory is still 98.6 MB. Free memory was 66.1 MB in the beginning and 65.1 MB in the end (delta: 963.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 381.66 ms. Allocated memory is still 98.6 MB. Free memory was 65.1 MB in the beginning and 53.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 249.52 ms. Allocated memory is still 98.6 MB. Free memory was 52.5 MB in the beginning and 41.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 40.38 ms. Allocated memory is still 98.6 MB. Free memory was 41.4 MB in the beginning and 39.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 332]: integer overflow possible integer overflow possible We found a FailurePath: [L332] 2147483647 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 incorrect! Received shutdown request...