./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron3.c --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_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/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_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/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_4ba39d71-d26d-41fb-8ade-d3dd46e14490/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 d39b2e96d4b63014ac5d4370210a69d8c51b35783699f0b891ff047844c0198a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:37:14,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:37:14,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:37:14,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:37:14,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:37:14,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:37:14,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:37:14,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:37:14,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:37:14,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:37:14,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:37:14,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:37:14,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:37:14,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:37:14,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:37:14,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:37:14,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:37:14,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:37:14,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:37:14,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:37:14,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:37:14,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:37:14,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:37:14,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:37:14,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:37:14,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:37:14,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:37:14,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:37:14,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:37:14,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:37:14,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:37:14,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:37:14,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:37:14,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:37:14,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:37:14,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:37:14,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:37:14,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:37:14,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:37:14,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:37:14,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:37:14,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-20 23:37:14,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:37:14,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:37:14,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:37:14,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:37:14,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:37:14,339 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:37:14,339 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:37:14,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:37:14,340 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:37:14,340 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:37:14,342 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:37:14,342 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:37:14,342 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:37:14,343 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:37:14,343 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:37:14,343 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:37:14,344 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:37:14,344 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:37:14,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:37:14,345 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 23:37:14,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:37:14,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:37:14,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:37:14,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:37:14,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:37:14,347 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 23:37:14,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:37:14,350 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:37:14,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:37:14,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:37:14,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:37:14,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:37:14,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:37:14,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:37:14,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:37:14,352 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:37:14,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:37:14,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:37:14,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:37:14,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:37:14,354 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_4ba39d71-d26d-41fb-8ade-d3dd46e14490/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d39b2e96d4b63014ac5d4370210a69d8c51b35783699f0b891ff047844c0198a [2021-11-20 23:37:14,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:37:14,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:37:14,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:37:14,707 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:37:14,708 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:37:14,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron3.c [2021-11-20 23:37:14,862 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/data/62cc8bec5/12ec50d031eb44e8b39a0fd2623998ff/FLAGb593675fc [2021-11-20 23:37:15,401 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:37:15,401 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron3.c [2021-11-20 23:37:15,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/data/62cc8bec5/12ec50d031eb44e8b39a0fd2623998ff/FLAGb593675fc [2021-11-20 23:37:15,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/data/62cc8bec5/12ec50d031eb44e8b39a0fd2623998ff [2021-11-20 23:37:15,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:37:15,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:37:15,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:37:15,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:37:15,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:37:15,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:15,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a0f2658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15, skipping insertion in model container [2021-11-20 23:37:15,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:15,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:37:15,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:37:15,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:37:15,963 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:37:15,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:37:15,990 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:37:15,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15 WrapperNode [2021-11-20 23:37:15,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:37:15,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:37:15,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:37:15,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:37:16,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:16,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:16,028 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2021-11-20 23:37:16,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:37:16,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:37:16,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:37:16,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:37:16,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:16,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:16,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:16,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:16,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:16,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:16,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:16,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:37:16,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:37:16,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:37:16,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:37:16,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (1/1) ... [2021-11-20 23:37:16,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:37:16,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:37:16,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:37:16,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:37:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:37:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:37:16,251 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:37:16,253 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:37:16,433 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:37:16,465 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:37:16,466 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 23:37:16,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:16 BoogieIcfgContainer [2021-11-20 23:37:16,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:37:16,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:37:16,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:37:16,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:37:16,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:37:15" (1/3) ... [2021-11-20 23:37:16,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8a9b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:16, skipping insertion in model container [2021-11-20 23:37:16,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:15" (2/3) ... [2021-11-20 23:37:16,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8a9b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:16, skipping insertion in model container [2021-11-20 23:37:16,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:16" (3/3) ... [2021-11-20 23:37:16,480 INFO L111 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-aaron3.c [2021-11-20 23:37:16,486 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:37:16,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-20 23:37:16,547 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:37:16,557 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 [2021-11-20 23:37:16,557 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-20 23:37:16,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 states have internal predecessors, (22), 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) [2021-11-20 23:37:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 23:37:16,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:16,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 23:37:16,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 23:37:16,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:16,616 INFO L85 PathProgramCache]: Analyzing trace with hash 2271164, now seen corresponding path program 1 times [2021-11-20 23:37:16,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:16,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748789389] [2021-11-20 23:37:16,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:16,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:37:16,740 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 23:37:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:37:16,770 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-20 23:37:16,773 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 23:37:16,774 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2021-11-20 23:37:16,777 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2021-11-20 23:37:16,778 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2021-11-20 23:37:16,778 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2021-11-20 23:37:16,779 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2021-11-20 23:37:16,779 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2021-11-20 23:37:16,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:37:16,785 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 23:37:16,790 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:37:16,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:37:16 BoogieIcfgContainer [2021-11-20 23:37:16,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:37:16,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:37:16,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:37:16,815 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:37:16,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:16" (3/4) ... [2021-11-20 23:37:16,819 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 23:37:16,861 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-20 23:37:16,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:37:16,863 INFO L158 Benchmark]: Toolchain (without parser) took 1071.81ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 50.1MB in the beginning and 81.1MB in the end (delta: -31.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 23:37:16,864 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 86.0MB. Free memory was 49.2MB in the beginning and 49.2MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:37:16,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.07ms. Allocated memory is still 86.0MB. Free memory was 49.9MB in the beginning and 41.1MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 23:37:16,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.89ms. Allocated memory is still 86.0MB. Free memory was 41.1MB in the beginning and 39.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:37:16,867 INFO L158 Benchmark]: Boogie Preprocessor took 21.89ms. Allocated memory is still 86.0MB. Free memory was 39.7MB in the beginning and 38.7MB in the end (delta: 919.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:37:16,868 INFO L158 Benchmark]: RCFGBuilder took 416.80ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 38.7MB in the beginning and 95.6MB in the end (delta: -57.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 23:37:16,868 INFO L158 Benchmark]: TraceAbstraction took 342.72ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 82.7MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 23:37:16,869 INFO L158 Benchmark]: Witness Printer took 46.62ms. Allocated memory is still 125.8MB. Free memory was 82.7MB in the beginning and 81.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:37:16,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 86.0MB. Free memory was 49.2MB in the beginning and 49.2MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.07ms. Allocated memory is still 86.0MB. Free memory was 49.9MB in the beginning and 41.1MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.89ms. Allocated memory is still 86.0MB. Free memory was 41.1MB in the beginning and 39.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.89ms. Allocated memory is still 86.0MB. Free memory was 39.7MB in the beginning and 38.7MB in the end (delta: 919.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 416.80ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 38.7MB in the beginning and 95.6MB in the end (delta: -57.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 342.72ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 82.7MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 46.62ms. Allocated memory is still 125.8MB. Free memory was 82.7MB in the beginning and 81.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 16]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] int z = __VERIFIER_nondet_int(); [L15] int tx = __VERIFIER_nondet_int(); [L16] x >= y && x <= tx + z VAL [tx=1, x=0, x >= y && x <= tx + z=1, y=0, z=2147483647] [L16] tx + z VAL [tx=1, x=0, x >= y && x <= tx + z=1, y=0, z=2147483647] - UnprovableResult [Line: 16]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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! [2021-11-20 23:37:16,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ba39d71-d26d-41fb-8ade-d3dd46e14490/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)