./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 27b7f4ca13f89942926d688f9661c8b9db8ca724ecc8df8ad72d9c1c501fca7e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:19:05,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:19:05,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:19:05,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:19:05,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:19:05,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:19:05,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:19:05,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:19:05,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:19:05,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:19:05,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:19:05,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:19:05,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:19:05,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:19:05,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:19:05,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:19:05,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:19:05,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:19:05,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:19:05,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:19:05,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:19:05,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:19:05,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:19:05,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:19:05,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:19:05,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:19:05,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:19:05,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:19:05,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:19:05,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:19:05,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:19:05,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:19:05,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:19:05,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:19:05,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:19:05,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:19:05,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:19:05,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:19:05,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:19:05,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:19:05,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:19:05,234 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-21 01:19:05,279 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:19:05,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:19:05,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:19:05,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:19:05,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:19:05,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:19:05,288 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:19:05,289 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:19:05,289 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:19:05,289 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:19:05,290 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:19:05,291 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:19:05,291 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:19:05,291 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:19:05,291 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:19:05,292 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:19:05,292 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:19:05,292 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:19:05,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:19:05,293 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:19:05,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:19:05,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:19:05,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:19:05,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:19:05,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:19:05,294 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 01:19:05,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:19:05,295 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:19:05,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:19:05,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:19:05,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:19:05,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:19:05,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:19:05,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:19:05,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:19:05,297 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:19:05,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:19:05,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:19:05,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:19:05,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:19:05,298 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27b7f4ca13f89942926d688f9661c8b9db8ca724ecc8df8ad72d9c1c501fca7e [2021-11-21 01:19:05,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:19:05,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:19:05,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:19:05,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:19:05,668 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:19:05,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i [2021-11-21 01:19:05,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/data/e4449a8d4/7df9c3fa2e024c46bd673f73dfabd427/FLAG3c84173d0 [2021-11-21 01:19:06,377 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:19:06,378 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/sv-benchmarks/c/signedintegeroverflow-regression/AdditionIntMin.i [2021-11-21 01:19:06,389 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/data/e4449a8d4/7df9c3fa2e024c46bd673f73dfabd427/FLAG3c84173d0 [2021-11-21 01:19:06,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/data/e4449a8d4/7df9c3fa2e024c46bd673f73dfabd427 [2021-11-21 01:19:06,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:19:06,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:19:06,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:19:06,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:19:06,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:19:06,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:19:06" (1/1) ... [2021-11-21 01:19:06,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea7a91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:06, skipping insertion in model container [2021-11-21 01:19:06,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:19:06" (1/1) ... [2021-11-21 01:19:06,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:19:06,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:19:07,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:19:07,119 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:19:07,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:19:07,231 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:19:07,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07 WrapperNode [2021-11-21 01:19:07,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:19:07,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:19:07,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:19:07,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:19:07,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (1/1) ... [2021-11-21 01:19:07,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (1/1) ... [2021-11-21 01:19:07,295 INFO L137 Inliner]: procedures = 109, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-21 01:19:07,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:19:07,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:19:07,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:19:07,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:19:07,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (1/1) ... [2021-11-21 01:19:07,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (1/1) ... [2021-11-21 01:19:07,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (1/1) ... [2021-11-21 01:19:07,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (1/1) ... [2021-11-21 01:19:07,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (1/1) ... [2021-11-21 01:19:07,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (1/1) ... [2021-11-21 01:19:07,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (1/1) ... [2021-11-21 01:19:07,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:19:07,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:19:07,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:19:07,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:19:07,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (1/1) ... [2021-11-21 01:19:07,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:19:07,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:07,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:19:07,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:19:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:19:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:19:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:19:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:19:07,590 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:19:07,592 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:19:07,673 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:19:07,690 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:19:07,690 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:19:07,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:19:07 BoogieIcfgContainer [2021-11-21 01:19:07,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:19:07,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:19:07,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:19:07,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:19:07,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:19:06" (1/3) ... [2021-11-21 01:19:07,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c06d623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:19:07, skipping insertion in model container [2021-11-21 01:19:07,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:07" (2/3) ... [2021-11-21 01:19:07,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c06d623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:19:07, skipping insertion in model container [2021-11-21 01:19:07,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:19:07" (3/3) ... [2021-11-21 01:19:07,715 INFO L111 eAbstractionObserver]: Analyzing ICFG AdditionIntMin.i [2021-11-21 01:19:07,722 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:19:07,722 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-21 01:19:07,789 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:19:07,798 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 [2021-11-21 01:19:07,798 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-21 01:19:07,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 5 states have (on average 1.8) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-21 01:19:07,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:07,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-21 01:19:07,843 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:19:07,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:07,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1429, now seen corresponding path program 1 times [2021-11-21 01:19:07,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:07,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340615533] [2021-11-21 01:19:07,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:07,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:08,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:08,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:08,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340615533] [2021-11-21 01:19:08,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340615533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:08,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:08,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 01:19:08,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423299702] [2021-11-21 01:19:08,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:08,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:19:08,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:08,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:19:08,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:19:08,116 INFO L87 Difference]: Start difference. First operand has 10 states, 5 states have (on average 1.8) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-21 01:19:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:08,143 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2021-11-21 01:19:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:19:08,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2021-11-21 01:19:08,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:08,156 INFO L225 Difference]: With dead ends: 10 [2021-11-21 01:19:08,156 INFO L226 Difference]: Without dead ends: 4 [2021-11-21 01:19:08,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:19:08,165 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:08,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:19:08,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2021-11-21 01:19:08,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2021-11-21 01:19:08,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-21 01:19:08,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3 transitions. [2021-11-21 01:19:08,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 3 transitions. Word has length 2 [2021-11-21 01:19:08,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:08,205 INFO L470 AbstractCegarLoop]: Abstraction has 4 states and 3 transitions. [2021-11-21 01:19:08,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-11-21 01:19:08,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2021-11-21 01:19:08,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 01:19:08,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:08,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 01:19:08,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:19:08,208 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:19:08,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:08,209 INFO L85 PathProgramCache]: Analyzing trace with hash 44335, now seen corresponding path program 1 times [2021-11-21 01:19:08,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:08,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471851835] [2021-11-21 01:19:08,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:08,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:19:08,226 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:19:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:19:08,268 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 01:19:08,269 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:19:08,272 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-11-21 01:19:08,280 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-11-21 01:19:08,281 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-11-21 01:19:08,282 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-11-21 01:19:08,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:19:08,290 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 01:19:08,297 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:19:08,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:19:08 BoogieIcfgContainer [2021-11-21 01:19:08,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:19:08,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:19:08,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:19:08,336 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:19:08,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:19:07" (3/4) ... [2021-11-21 01:19:08,339 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 01:19:08,374 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 01:19:08,375 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:19:08,376 INFO L158 Benchmark]: Toolchain (without parser) took 1644.43ms. Allocated memory is still 102.8MB. Free memory was 65.7MB in the beginning and 79.0MB in the end (delta: -13.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:19:08,376 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:19:08,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.80ms. Allocated memory is still 102.8MB. Free memory was 65.5MB in the beginning and 74.5MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:19:08,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.99ms. Allocated memory is still 102.8MB. Free memory was 74.5MB in the beginning and 72.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:19:08,379 INFO L158 Benchmark]: Boogie Preprocessor took 43.68ms. Allocated memory is still 102.8MB. Free memory was 72.9MB in the beginning and 71.9MB in the end (delta: 931.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:19:08,379 INFO L158 Benchmark]: RCFGBuilder took 352.04ms. Allocated memory is still 102.8MB. Free memory was 71.9MB in the beginning and 63.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:19:08,380 INFO L158 Benchmark]: TraceAbstraction took 639.98ms. Allocated memory is still 102.8MB. Free memory was 62.8MB in the beginning and 80.5MB in the end (delta: -17.7MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2021-11-21 01:19:08,381 INFO L158 Benchmark]: Witness Printer took 38.86ms. Allocated memory is still 102.8MB. Free memory was 80.4MB in the beginning and 79.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:19:08,385 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.80ms. Allocated memory is still 102.8MB. Free memory was 65.5MB in the beginning and 74.5MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.99ms. Allocated memory is still 102.8MB. Free memory was 74.5MB in the beginning and 72.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.68ms. Allocated memory is still 102.8MB. Free memory was 72.9MB in the beginning and 71.9MB in the end (delta: 931.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.04ms. Allocated memory is still 102.8MB. Free memory was 71.9MB in the beginning and 63.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 639.98ms. Allocated memory is still 102.8MB. Free memory was 62.8MB in the beginning and 80.5MB in the end (delta: -17.7MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * Witness Printer took 38.86ms. Allocated memory is still 102.8MB. Free memory was 80.4MB in the beginning and 79.0MB in the end (delta: 1.4MB). There was no memory consumed. 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: 333]: integer overflow possible integer overflow possible We found a FailurePath: [L332] int minInt = -2147483647 - 1; VAL [minInt=-2147483648] [L333] minInt + -1 VAL [minInt=-2147483648] - UnprovableResult [Line: 333]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 333]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 333]: 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, 10 locations, 4 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: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, 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=10occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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! [2021-11-21 01:19:08,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a4155b7-ca27-4fa6-9995-8265380e95e5/bin/utaipan-TEXQjIfE4P/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)