./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/aaron2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/aaron2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be --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 fe28ff8b812a458264d312f9e6d1743cb2ad63c6237a18b4ce70848a3971df6d ............................................................................................................................................................................................................................................................... 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 0.2.1-dev-e943c26 [2021-10-21 19:36:10,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:36:10,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:36:10,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:36:10,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:36:10,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:36:10,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:36:10,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:36:10,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:36:10,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:36:10,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:36:10,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:36:10,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:36:10,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:36:10,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:36:10,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:36:10,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:36:10,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:36:10,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:36:10,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:36:10,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:36:10,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:36:10,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:36:10,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:36:10,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:36:10,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:36:10,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:36:10,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:36:10,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:36:10,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:36:10,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:36:10,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:36:10,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:36:10,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:36:10,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:36:10,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:36:10,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:36:10,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:36:10,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:36:10,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:36:10,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:36:10,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-21 19:36:10,655 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:36:10,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:36:10,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:36:10,657 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:36:10,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:36:10,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:36:10,665 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:36:10,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:36:10,666 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:36:10,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:36:10,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:36:10,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:36:10,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:36:10,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:36:10,668 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-21 19:36:10,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:36:10,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:36:10,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:36:10,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:36:10,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:36:10,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:36:10,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:36:10,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:36:10,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:36:10,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:36:10,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:36:10,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:36:10,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:36:10,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:36:10,674 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_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe28ff8b812a458264d312f9e6d1743cb2ad63c6237a18b4ce70848a3971df6d [2021-10-21 19:36:10,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:36:10,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:36:10,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:36:10,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:36:11,000 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:36:11,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted/aaron2-2.c [2021-10-21 19:36:11,079 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/data/71cd1ac4f/ea52b0a0a55641bca7dfd79658917eb5/FLAG662fd920c [2021-10-21 19:36:11,526 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:36:11,527 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/sv-benchmarks/c/termination-crafted/aaron2-2.c [2021-10-21 19:36:11,533 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/data/71cd1ac4f/ea52b0a0a55641bca7dfd79658917eb5/FLAG662fd920c [2021-10-21 19:36:11,928 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/data/71cd1ac4f/ea52b0a0a55641bca7dfd79658917eb5 [2021-10-21 19:36:11,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:36:11,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:36:11,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:36:11,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:36:11,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:36:11,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:36:11" (1/1) ... [2021-10-21 19:36:11,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a993738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:11, skipping insertion in model container [2021-10-21 19:36:11,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:36:11" (1/1) ... [2021-10-21 19:36:11,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:36:11,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:36:12,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:36:12,135 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:36:12,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:36:12,166 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:36:12,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12 WrapperNode [2021-10-21 19:36:12,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:36:12,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:36:12,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:36:12,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:36:12,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (1/1) ... [2021-10-21 19:36:12,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (1/1) ... [2021-10-21 19:36:12,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:36:12,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:36:12,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:36:12,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:36:12,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (1/1) ... [2021-10-21 19:36:12,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (1/1) ... [2021-10-21 19:36:12,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (1/1) ... [2021-10-21 19:36:12,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (1/1) ... [2021-10-21 19:36:12,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (1/1) ... [2021-10-21 19:36:12,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (1/1) ... [2021-10-21 19:36:12,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (1/1) ... [2021-10-21 19:36:12,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:36:12,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:36:12,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:36:12,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:36:12,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (1/1) ... [2021-10-21 19:36:12,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:36:12,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:12,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:12,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:36:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:36:12,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:36:12,525 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:36:12,526 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:36:12,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:12 BoogieIcfgContainer [2021-10-21 19:36:12,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:36:12,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:36:12,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:36:12,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:36:12,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:36:11" (1/3) ... [2021-10-21 19:36:12,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bd8d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:36:12, skipping insertion in model container [2021-10-21 19:36:12,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:12" (2/3) ... [2021-10-21 19:36:12,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bd8d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:36:12, skipping insertion in model container [2021-10-21 19:36:12,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:12" (3/3) ... [2021-10-21 19:36:12,539 INFO L111 eAbstractionObserver]: Analyzing ICFG aaron2-2.c [2021-10-21 19:36:12,545 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:36:12,546 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-21 19:36:12,601 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:36:12,609 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 [2021-10-21 19:36:12,609 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-21 19:36:12,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 22 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) [2021-10-21 19:36:12,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 19:36:12,632 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:36:12,632 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 19:36:12,633 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-21 19:36:12,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:12,639 INFO L82 PathProgramCache]: Analyzing trace with hash 963659, now seen corresponding path program 1 times [2021-10-21 19:36:12,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:12,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441798489] [2021-10-21 19:36:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:12,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:12,727 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:12,758 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:12,761 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:36:12,762 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:36:12,764 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:36:12,764 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:36:12,765 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:36:12,765 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:36:12,765 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:36:12,766 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:36:12,766 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:36:12,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:36:12,774 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:36:12,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:36:12 BoogieIcfgContainer [2021-10-21 19:36:12,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:36:12,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:36:12,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:36:12,789 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:36:12,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:12" (3/4) ... [2021-10-21 19:36:12,791 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 19:36:12,826 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:36:12,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:36:12,828 INFO L168 Benchmark]: Toolchain (without parser) took 893.98 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.5 MB in the beginning and 67.4 MB in the end (delta: -5.9 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:12,829 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 69.2 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:36:12,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.60 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.5 MB in the beginning and 93.7 MB in the end (delta: -32.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:12,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.04 ms. Allocated memory is still 117.4 MB. Free memory was 93.7 MB in the beginning and 92.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:36:12,831 INFO L168 Benchmark]: Boogie Preprocessor took 17.97 ms. Allocated memory is still 117.4 MB. Free memory was 92.5 MB in the beginning and 91.8 MB in the end (delta: 711.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:12,832 INFO L168 Benchmark]: RCFGBuilder took 312.79 ms. Allocated memory is still 117.4 MB. Free memory was 91.8 MB in the beginning and 82.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:12,832 INFO L168 Benchmark]: TraceAbstraction took 258.40 ms. Allocated memory is still 117.4 MB. Free memory was 82.0 MB in the beginning and 68.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:12,833 INFO L168 Benchmark]: Witness Printer took 37.84 ms. Allocated memory is still 117.4 MB. Free memory was 68.7 MB in the beginning and 67.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:36:12,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 69.2 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 231.60 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.5 MB in the beginning and 93.7 MB in the end (delta: -32.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.04 ms. Allocated memory is still 117.4 MB. Free memory was 93.7 MB in the beginning and 92.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.97 ms. Allocated memory is still 117.4 MB. Free memory was 92.5 MB in the beginning and 91.8 MB in the end (delta: 711.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 312.79 ms. Allocated memory is still 117.4 MB. Free memory was 91.8 MB in the beginning and 82.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 258.40 ms. Allocated memory is still 117.4 MB. Free memory was 82.0 MB in the beginning and 68.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 37.84 ms. Allocated memory is still 117.4 MB. Free memory was 68.7 MB in the beginning and 67.4 MB in the end (delta: 1.4 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x, y, tx; [L17] tx = __VERIFIER_nondet_int() [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L20] COND TRUE x >= y && tx >= 0 [L21] COND FALSE !(__VERIFIER_nondet_int() != 0) [L24] y + 1 - 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. - 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. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: 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, 23 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 173.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 10.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.6ms SsaConstructionTime, 22.0ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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! [2021-10-21 19:36:12,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ccaf9-1b40-4228-a0e8-f474fa728ff6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...