./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer --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 d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe ....................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-30 01:26:56,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:26:56,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:26:56,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:26:56,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:26:56,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:26:56,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:26:56,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:26:56,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:26:56,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:26:56,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:26:56,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:26:56,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:26:56,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:26:56,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:26:56,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:26:56,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:26:56,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:26:56,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:26:56,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:26:56,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:26:56,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:26:56,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:26:56,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:26:56,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:26:56,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:26:56,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:26:56,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:26:56,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:26:56,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:26:56,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:26:56,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:26:56,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:26:56,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:26:56,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:26:56,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:26:56,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:26:56,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:26:56,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:26:56,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:26:56,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:26:56,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-30 01:26:56,543 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:26:56,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:26:56,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:26:56,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:26:56,547 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:26:56,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:26:56,548 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:26:56,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:26:56,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:26:56,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:26:56,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:26:56,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:26:56,551 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:26:56,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:26:56,552 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:26:56,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:26:56,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:26:56,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:26:56,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:26:56,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:26:56,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:26:56,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:26:56,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:26:56,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:26:56,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:26:56,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:26:56,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:26:56,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:26:56,557 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-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe [2020-11-30 01:26:56,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:26:56,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:26:56,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:26:56,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:26:56,974 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:26:56,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c [2020-11-30 01:26:57,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/data/8740055f4/eb913152875846bb9c4d0a18b537ab12/FLAG7c114c34d [2020-11-30 01:26:57,670 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:26:57,673 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c [2020-11-30 01:26:57,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/data/8740055f4/eb913152875846bb9c4d0a18b537ab12/FLAG7c114c34d [2020-11-30 01:26:58,009 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/data/8740055f4/eb913152875846bb9c4d0a18b537ab12 [2020-11-30 01:26:58,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:26:58,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:26:58,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:26:58,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:26:58,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:26:58,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a89830f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58, skipping insertion in model container [2020-11-30 01:26:58,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:26:58,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:26:58,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:26:58,276 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:26:58,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:26:58,378 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:26:58,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58 WrapperNode [2020-11-30 01:26:58,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:26:58,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:26:58,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:26:58,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:26:58,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:26:58,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:26:58,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:26:58,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:26:58,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... [2020-11-30 01:26:58,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:26:58,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:26:58,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:26:58,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:26:58,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:26:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:26:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:26:59,159 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:26:59,159 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:26:59,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:26:59 BoogieIcfgContainer [2020-11-30 01:26:59,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:26:59,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:26:59,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:26:59,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:26:59,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:26:58" (1/3) ... [2020-11-30 01:26:59,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12988e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:26:59, skipping insertion in model container [2020-11-30 01:26:59,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:58" (2/3) ... [2020-11-30 01:26:59,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12988e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:26:59, skipping insertion in model container [2020-11-30 01:26:59,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:26:59" (3/3) ... [2020-11-30 01:26:59,194 INFO L111 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-ICALP2005-Fig1.c [2020-11-30 01:26:59,207 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:26:59,214 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-11-30 01:26:59,229 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-11-30 01:26:59,257 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:26:59,257 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:26:59,258 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:26:59,258 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:26:59,258 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:26:59,258 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:26:59,258 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:26:59,259 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:26:59,280 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-30 01:26:59,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 01:26:59,287 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:26:59,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-30 01:26:59,289 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:26:59,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:26:59,297 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2020-11-30 01:26:59,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:26:59,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784133789] [2020-11-30 01:26:59,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:26:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:26:59,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:26:59,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784133789] [2020-11-30 01:26:59,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:26:59,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:26:59,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156245728] [2020-11-30 01:26:59,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:26:59,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:26:59,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:26:59,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:26:59,532 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-11-30 01:26:59,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:26:59,764 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2020-11-30 01:26:59,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:26:59,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-30 01:26:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:26:59,781 INFO L225 Difference]: With dead ends: 51 [2020-11-30 01:26:59,782 INFO L226 Difference]: Without dead ends: 38 [2020-11-30 01:26:59,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:26:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-30 01:26:59,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 24. [2020-11-30 01:26:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-30 01:26:59,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-11-30 01:26:59,857 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 3 [2020-11-30 01:26:59,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:26:59,857 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-11-30 01:26:59,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:26:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-11-30 01:26:59,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:26:59,858 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:26:59,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 01:26:59,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:26:59,859 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:26:59,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:26:59,861 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2020-11-30 01:26:59,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:26:59,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269529976] [2020-11-30 01:26:59,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:26:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:26:59,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:26:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:26:59,895 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:26:59,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:26:59,915 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:26:59,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:26:59,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:26:59 BoogieIcfgContainer [2020-11-30 01:26:59,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:26:59,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:26:59,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:26:59,940 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:26:59,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:26:59" (3/4) ... [2020-11-30 01:26:59,944 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:27:00,000 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fbc1ff52-5a3f-473c-8612-d59bd1bd6048/bin/uautomizer/witness.graphml [2020-11-30 01:27:00,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:27:00,011 INFO L168 Benchmark]: Toolchain (without parser) took 1973.11 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 55.6 MB in the beginning and 42.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:00,012 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 86.0 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:27:00,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.54 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 55.3 MB in the beginning and 84.4 MB in the end (delta: -29.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:00,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.24 ms. Allocated memory is still 104.9 MB. Free memory was 84.4 MB in the beginning and 82.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:27:00,017 INFO L168 Benchmark]: Boogie Preprocessor took 48.82 ms. Allocated memory is still 104.9 MB. Free memory was 82.9 MB in the beginning and 82.1 MB in the end (delta: 839.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:27:00,018 INFO L168 Benchmark]: RCFGBuilder took 689.42 ms. Allocated memory is still 104.9 MB. Free memory was 82.1 MB in the beginning and 70.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:00,023 INFO L168 Benchmark]: TraceAbstraction took 764.16 ms. Allocated memory is still 104.9 MB. Free memory was 69.8 MB in the beginning and 43.7 MB in the end (delta: 26.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:27:00,024 INFO L168 Benchmark]: Witness Printer took 61.91 ms. Allocated memory is still 104.9 MB. Free memory was 43.7 MB in the beginning and 42.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:27:00,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 86.0 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.54 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 55.3 MB in the beginning and 84.4 MB in the end (delta: -29.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.24 ms. Allocated memory is still 104.9 MB. Free memory was 84.4 MB in the beginning and 82.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.82 ms. Allocated memory is still 104.9 MB. Free memory was 82.9 MB in the beginning and 82.1 MB in the end (delta: 839.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 689.42 ms. Allocated memory is still 104.9 MB. Free memory was 82.1 MB in the beginning and 70.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 764.16 ms. Allocated memory is still 104.9 MB. Free memory was 69.8 MB in the beginning and 43.7 MB in the end (delta: 26.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 61.91 ms. Allocated memory is still 104.9 MB. Free memory was 43.7 MB in the beginning and 42.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, y, N; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] N = __VERIFIER_nondet_int() [L21] COND TRUE N < 536870912 && x < 536870912 && y < 536870912 && x >= -1073741824 [L22] x + y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 22 SDslu, 5 SDs, 0 SdLazy, 39 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, 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, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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! Received shutdown request...