./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 75c77784640a1236b85c33567209079138fc6d25915cbea50e6b8364ebae6f68 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:21:43,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:21:43,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:21:43,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:21:43,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:21:43,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:21:43,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:21:43,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:21:43,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:21:43,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:21:43,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:21:43,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:21:43,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:21:43,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:21:43,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:21:43,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:21:43,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:21:43,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:21:43,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:21:43,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:21:43,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:21:43,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:21:43,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:21:43,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:21:43,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:21:43,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:21:43,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:21:43,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:21:43,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:21:43,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:21:43,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:21:43,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:21:43,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:21:43,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:21:43,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:21:43,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:21:43,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:21:43,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:21:43,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:21:43,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:21:43,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:21:43,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-19 05:21:43,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:21:43,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:21:43,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:21:43,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:21:43,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:21:43,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:21:43,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:21:43,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:21:43,407 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:21:43,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:21:43,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:21:43,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:21:43,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:21:43,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:21:43,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:21:43,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:21:43,413 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-19 05:21:43,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:21:43,413 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:21:43,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:21:43,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:21:43,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:21:43,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:21:43,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:21:43,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:21:43,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:21:43,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:21:43,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:21:43,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:21:43,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:21:43,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:21:43,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75c77784640a1236b85c33567209079138fc6d25915cbea50e6b8364ebae6f68 [2021-11-19 05:21:43,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:21:43,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:21:43,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:21:43,865 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:21:43,866 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:21:43,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c [2021-11-19 05:21:43,966 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/data/e57f18a92/86a616cd77b249f5957ac961152b2631/FLAGdd8e2436d [2021-11-19 05:21:44,710 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:21:44,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c [2021-11-19 05:21:44,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/data/e57f18a92/86a616cd77b249f5957ac961152b2631/FLAGdd8e2436d [2021-11-19 05:21:45,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/data/e57f18a92/86a616cd77b249f5957ac961152b2631 [2021-11-19 05:21:45,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:21:45,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:21:45,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:21:45,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:21:45,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:21:45,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aefdb96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45, skipping insertion in model container [2021-11-19 05:21:45,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:21:45,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:21:45,326 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:21:45,335 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:21:45,356 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:21:45,372 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:21:45,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45 WrapperNode [2021-11-19 05:21:45,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:21:45,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:21:45,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:21:45,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:21:45,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,416 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2021-11-19 05:21:45,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:21:45,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:21:45,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:21:45,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:21:45,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:21:45,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:21:45,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:21:45,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:21:45,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (1/1) ... [2021-11-19 05:21:45,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:21:45,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:21:45,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:21:45,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:21:45,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:21:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:21:45,660 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:21:45,662 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:21:45,831 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:21:45,842 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:21:45,843 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 05:21:45,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:45 BoogieIcfgContainer [2021-11-19 05:21:45,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:21:45,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:21:45,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:21:45,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:21:45,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:21:45" (1/3) ... [2021-11-19 05:21:45,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da41e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:45, skipping insertion in model container [2021-11-19 05:21:45,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:45" (2/3) ... [2021-11-19 05:21:45,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da41e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:45, skipping insertion in model container [2021-11-19 05:21:45,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:45" (3/3) ... [2021-11-19 05:21:45,860 INFO L111 eAbstractionObserver]: Analyzing ICFG NonTerminationSimple8.c [2021-11-19 05:21:45,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:21:45,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-19 05:21:45,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:21:45,942 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 [2021-11-19 05:21:45,942 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-19 05:21:45,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 26 states have internal predecessors, (32), 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) [2021-11-19 05:21:45,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 05:21:45,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:21:45,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 05:21:45,971 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-19 05:21:45,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:21:45,978 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2021-11-19 05:21:45,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:21:45,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085037775] [2021-11-19 05:21:45,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:21:45,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:21:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:21:46,084 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:21:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:21:46,115 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:21:46,119 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:21:46,121 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2021-11-19 05:21:46,124 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2021-11-19 05:21:46,125 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2021-11-19 05:21:46,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2021-11-19 05:21:46,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2021-11-19 05:21:46,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2021-11-19 05:21:46,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2021-11-19 05:21:46,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2021-11-19 05:21:46,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:21:46,137 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 05:21:46,143 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:21:46,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:21:46 BoogieIcfgContainer [2021-11-19 05:21:46,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:21:46,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:21:46,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:21:46,169 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:21:46,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:45" (3/4) ... [2021-11-19 05:21:46,172 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 05:21:46,212 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:21:46,212 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:21:46,214 INFO L158 Benchmark]: Toolchain (without parser) took 1148.71ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.8MB in the beginning and 70.6MB in the end (delta: -3.7MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2021-11-19 05:21:46,215 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 98.6MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:21:46,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.64ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.6MB in the beginning and 95.7MB in the end (delta: -29.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:21:46,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.86ms. Allocated memory is still 119.5MB. Free memory was 95.7MB in the beginning and 94.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:21:46,218 INFO L158 Benchmark]: Boogie Preprocessor took 27.27ms. Allocated memory is still 119.5MB. Free memory was 94.5MB in the beginning and 93.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:21:46,219 INFO L158 Benchmark]: RCFGBuilder took 400.20ms. Allocated memory is still 119.5MB. Free memory was 93.3MB in the beginning and 84.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:21:46,220 INFO L158 Benchmark]: TraceAbstraction took 318.32ms. Allocated memory is still 119.5MB. Free memory was 84.1MB in the beginning and 71.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:21:46,221 INFO L158 Benchmark]: Witness Printer took 44.24ms. Allocated memory is still 119.5MB. Free memory was 71.9MB in the beginning and 70.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:21:46,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 98.6MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.64ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 66.6MB in the beginning and 95.7MB in the end (delta: -29.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.86ms. Allocated memory is still 119.5MB. Free memory was 95.7MB in the beginning and 94.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.27ms. Allocated memory is still 119.5MB. Free memory was 94.5MB in the beginning and 93.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 400.20ms. Allocated memory is still 119.5MB. Free memory was 93.3MB in the beginning and 84.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 318.32ms. Allocated memory is still 119.5MB. Free memory was 84.1MB in the beginning and 71.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 44.24ms. Allocated memory is still 119.5MB. Free memory was 71.9MB in the beginning and 70.6MB in the end (delta: 1.3MB). 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 - CounterExampleResult [Line: 16]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x; [L13] x = __VERIFIER_nondet_int() [L14] COND TRUE x >= 0 [L15] COND TRUE __VERIFIER_nondet_int() != 0 [L16] x + 1 VAL [x=2147483647] - UnprovableResult [Line: 16]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 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, 5 NumberOfCodeBlocks, 5 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! [2021-11-19 05:21:46,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81c64c4-1ca0-4fb6-8cdd-4a2ff89d0532/bin/uautomizer-ZXIjhQolGL/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)