./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU --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 42fd1e2a21bb4aa2f573a30580825a1464ab84c04e62c9bfecea355146dac68c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:37:26,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:37:26,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:37:26,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:37:26,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:37:26,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:37:26,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:37:26,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:37:26,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:37:26,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:37:26,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:37:26,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:37:26,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:37:26,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:37:26,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:37:26,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:37:26,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:37:26,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:37:26,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:37:26,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:37:26,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:37:26,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:37:26,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:37:26,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:37:26,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:37:26,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:37:26,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:37:26,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:37:26,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:37:26,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:37:26,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:37:26,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:37:26,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:37:26,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:37:26,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:37:26,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:37:26,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:37:26,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:37:26,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:37:26,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:37:26,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:37:26,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-02 22:37:26,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:37:26,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:37:26,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:37:26,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:37:26,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:37:26,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:37:26,396 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:37:26,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:37:26,396 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:37:26,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:37:26,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:37:26,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:37:26,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:37:26,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:37:26,399 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-02 22:37:26,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:37:26,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:37:26,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:37:26,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:37:26,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:37:26,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:37:26,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:37:26,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:37:26,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:37:26,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:37:26,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:37:26,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:37:26,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:37:26,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:37:26,402 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_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42fd1e2a21bb4aa2f573a30580825a1464ab84c04e62c9bfecea355146dac68c [2021-11-02 22:37:26,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:37:26,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:37:26,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:37:26,719 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:37:26,720 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:37:26,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2021-11-02 22:37:26,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/data/b2cf5dc5a/a3e83dd7539a43d98840381235d453ae/FLAG92afee4a4 [2021-11-02 22:37:27,319 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:37:27,320 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2021-11-02 22:37:27,329 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/data/b2cf5dc5a/a3e83dd7539a43d98840381235d453ae/FLAG92afee4a4 [2021-11-02 22:37:27,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/data/b2cf5dc5a/a3e83dd7539a43d98840381235d453ae [2021-11-02 22:37:27,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:37:27,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:37:27,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:37:27,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:37:27,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:37:27,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:27,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0412e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27, skipping insertion in model container [2021-11-02 22:37:27,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:27,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:37:27,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:37:27,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:37:27,953 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:37:27,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:37:27,982 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:37:27,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27 WrapperNode [2021-11-02 22:37:27,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:37:27,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:37:27,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:37:27,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:37:27,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:28,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:28,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:37:28,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:37:28,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:37:28,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:37:28,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:28,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:28,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:28,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:28,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:28,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:28,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:28,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:37:28,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:37:28,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:37:28,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:37:28,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (1/1) ... [2021-11-02 22:37:28,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:37:28,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:37:28,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:37:28,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:37:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:37:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:37:28,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:37:28,366 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-02 22:37:28,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:37:28 BoogieIcfgContainer [2021-11-02 22:37:28,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:37:28,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:37:28,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:37:28,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:37:28,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:37:27" (1/3) ... [2021-11-02 22:37:28,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782a18e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:37:28, skipping insertion in model container [2021-11-02 22:37:28,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:27" (2/3) ... [2021-11-02 22:37:28,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782a18e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:37:28, skipping insertion in model container [2021-11-02 22:37:28,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:37:28" (3/3) ... [2021-11-02 22:37:28,379 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-counterex1a.c [2021-11-02 22:37:28,384 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:37:28,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-02 22:37:28,455 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:37:28,464 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 [2021-11-02 22:37:28,464 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-02 22:37:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 20 states have internal predecessors, (25), 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) [2021-11-02 22:37:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-02 22:37:28,488 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:28,488 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-02 22:37:28,489 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:37:28,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:28,495 INFO L85 PathProgramCache]: Analyzing trace with hash 963723, now seen corresponding path program 1 times [2021-11-02 22:37:28,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:28,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963081666] [2021-11-02 22:37:28,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:28,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:37:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:37:28,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:37:28,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963081666] [2021-11-02 22:37:28,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963081666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:37:28,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:37:28,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-02 22:37:28,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216366252] [2021-11-02 22:37:28,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:37:28,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:37:28,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:37:28,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:37:28,705 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 20 states have internal predecessors, (25), 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) [2021-11-02 22:37:28,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:37:28,808 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2021-11-02 22:37:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:37:28,810 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 [2021-11-02 22:37:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:37:28,818 INFO L225 Difference]: With dead ends: 41 [2021-11-02 22:37:28,818 INFO L226 Difference]: Without dead ends: 28 [2021-11-02 22:37:28,821 INFO L786 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 [2021-11-02 22:37:28,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-02 22:37:28,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2021-11-02 22:37:28,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 23 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) [2021-11-02 22:37:28,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2021-11-02 22:37:28,882 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 32 transitions. Word has length 4 [2021-11-02 22:37:28,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:37:28,883 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 32 transitions. [2021-11-02 22:37:28,884 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) [2021-11-02 22:37:28,884 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2021-11-02 22:37:28,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-02 22:37:28,885 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:37:28,886 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-02 22:37:28,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:37:28,887 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:37:28,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:37:28,890 INFO L85 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2021-11-02 22:37:28,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:37:28,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117410577] [2021-11-02 22:37:28,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:37:28,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:37:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:28,925 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:37:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:37:28,964 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:37:28,964 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-02 22:37:28,966 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-02 22:37:28,968 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-02 22:37:28,969 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-02 22:37:28,969 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-02 22:37:28,969 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-02 22:37:28,969 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-02 22:37:28,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:37:28,973 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-02 22:37:28,976 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 22:37:28,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 10:37:28 BoogieIcfgContainer [2021-11-02 22:37:28,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 22:37:28,989 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:37:28,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:37:28,990 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:37:28,990 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:37:28" (3/4) ... [2021-11-02 22:37:28,992 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-02 22:37:29,038 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:37:29,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:37:29,041 INFO L168 Benchmark]: Toolchain (without parser) took 1329.39 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 51.9 MB in the beginning and 72.4 MB in the end (delta: -20.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:37:29,041 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory is still 67.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:37:29,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.41 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 51.7 MB in the beginning and 107.6 MB in the end (delta: -56.0 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-11-02 22:37:29,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.97 ms. Allocated memory is still 130.0 MB. Free memory was 107.6 MB in the beginning and 106.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:37:29,069 INFO L168 Benchmark]: Boogie Preprocessor took 37.43 ms. Allocated memory is still 130.0 MB. Free memory was 106.1 MB in the beginning and 105.3 MB in the end (delta: 812.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:37:29,069 INFO L168 Benchmark]: RCFGBuilder took 307.19 ms. Allocated memory is still 130.0 MB. Free memory was 105.3 MB in the beginning and 96.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:37:29,070 INFO L168 Benchmark]: TraceAbstraction took 618.71 ms. Allocated memory is still 130.0 MB. Free memory was 95.7 MB in the beginning and 73.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:37:29,071 INFO L168 Benchmark]: Witness Printer took 49.52 ms. Allocated memory is still 130.0 MB. Free memory was 73.9 MB in the beginning and 72.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:37:29,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory is still 67.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.41 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 51.7 MB in the beginning and 107.6 MB in the end (delta: -56.0 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.97 ms. Allocated memory is still 130.0 MB. Free memory was 107.6 MB in the beginning and 106.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.43 ms. Allocated memory is still 130.0 MB. Free memory was 106.1 MB in the beginning and 105.3 MB in the end (delta: 812.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 307.19 ms. Allocated memory is still 130.0 MB. Free memory was 105.3 MB in the beginning and 96.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 618.71 ms. Allocated memory is still 130.0 MB. Free memory was 95.7 MB in the beginning and 73.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 49.52 ms. Allocated memory is still 130.0 MB. Free memory was 73.9 MB in the beginning and 72.4 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: - 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: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, n, b; [L15] n = __VERIFIER_nondet_int() [L16] b = __VERIFIER_nondet_int() [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L19] COND TRUE x >= 0 && 0 <= y && y <= n [L20] COND TRUE b == 0 [L21] y + 1 - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: 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, 21 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 16 SDslu, 13 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=1, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2021-11-02 22:37:29,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86fe59f0-4cb2-4db5-95fe-4ad88c27b069/bin/uautomizer-tBqnrhUYjU/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)