./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/joey.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_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/joey.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/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 6360f720317c1229a4bb277806239106bfb4e5c0 ............................................................................................................................................................................................................................................................................. 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 [2020-11-28 03:13:30,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:13:30,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:13:30,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:13:30,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:13:30,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:13:30,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:13:30,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:13:30,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:13:30,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:13:30,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:13:30,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:13:30,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:13:30,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:13:30,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:13:30,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:13:30,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:13:30,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:13:30,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:13:30,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:13:30,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:13:30,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:13:30,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:13:30,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:13:30,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:13:30,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:13:30,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:13:30,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:13:30,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:13:30,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:13:30,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:13:30,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:13:30,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:13:30,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:13:30,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:13:30,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:13:30,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:13:30,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:13:30,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:13:30,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:13:30,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:13:30,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 03:13:30,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:13:30,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:13:30,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:13:30,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:13:30,555 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:13:30,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:13:30,556 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:13:30,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:13:30,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:13:30,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:13:30,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:13:30,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:13:30,558 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:13:30,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:13:30,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:13:30,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:13:30,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:13:30,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:13:30,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:13:30,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:13:30,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:13:30,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:13:30,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:13:30,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:13:30,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:13:30,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:13:30,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:13:30,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:13:30,562 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_d6e3597b-ec99-4fcf-802e-1ba78a206a72/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6360f720317c1229a4bb277806239106bfb4e5c0 [2020-11-28 03:13:30,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:13:30,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:13:30,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:13:30,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:13:30,919 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:13:30,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/joey.c [2020-11-28 03:13:30,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/data/cea05c203/2841f7d95f0d4844ba77392ba117f52e/FLAGd78a7fa4f [2020-11-28 03:13:31,464 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:13:31,464 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/sv-benchmarks/c/termination-crafted-lit/joey.c [2020-11-28 03:13:31,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/data/cea05c203/2841f7d95f0d4844ba77392ba117f52e/FLAGd78a7fa4f [2020-11-28 03:13:31,841 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/data/cea05c203/2841f7d95f0d4844ba77392ba117f52e [2020-11-28 03:13:31,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:13:31,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:13:31,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:13:31,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:13:31,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:13:31,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:31" (1/1) ... [2020-11-28 03:13:31,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66eee495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:31, skipping insertion in model container [2020-11-28 03:13:31,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:31" (1/1) ... [2020-11-28 03:13:31,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:13:31,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:13:32,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:13:32,081 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:13:32,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:13:32,112 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:13:32,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32 WrapperNode [2020-11-28 03:13:32,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:13:32,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:13:32,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:13:32,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:13:32,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (1/1) ... [2020-11-28 03:13:32,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (1/1) ... [2020-11-28 03:13:32,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:13:32,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:13:32,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:13:32,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:13:32,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (1/1) ... [2020-11-28 03:13:32,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (1/1) ... [2020-11-28 03:13:32,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (1/1) ... [2020-11-28 03:13:32,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (1/1) ... [2020-11-28 03:13:32,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (1/1) ... [2020-11-28 03:13:32,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (1/1) ... [2020-11-28 03:13:32,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (1/1) ... [2020-11-28 03:13:32,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:13:32,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:13:32,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:13:32,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:13:32,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/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 [2020-11-28 03:13:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2020-11-28 03:13:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2020-11-28 03:13:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:13:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:13:32,506 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:13:32,506 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-28 03:13:32,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:32 BoogieIcfgContainer [2020-11-28 03:13:32,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:13:32,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:13:32,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:13:32,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:13:32,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:13:31" (1/3) ... [2020-11-28 03:13:32,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33016544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:32, skipping insertion in model container [2020-11-28 03:13:32,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:32" (2/3) ... [2020-11-28 03:13:32,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33016544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:13:32, skipping insertion in model container [2020-11-28 03:13:32,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:32" (3/3) ... [2020-11-28 03:13:32,517 INFO L111 eAbstractionObserver]: Analyzing ICFG joey.c [2020-11-28 03:13:32,528 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:13:32,532 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-28 03:13:32,544 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-28 03:13:32,569 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:13:32,570 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:13:32,570 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:13:32,570 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:13:32,570 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:13:32,570 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:13:32,571 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:13:32,571 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:13:32,587 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-28 03:13:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:13:32,592 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:32,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:13:32,594 INFO L429 AbstractCegarLoop]: === Iteration 1 === [recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:13:32,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:32,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1873828178, now seen corresponding path program 1 times [2020-11-28 03:13:32,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:32,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332139986] [2020-11-28 03:13:32,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:33,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:13:33,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332139986] [2020-11-28 03:13:33,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:13:33,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:13:33,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604834430] [2020-11-28 03:13:33,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:13:33,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:13:33,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:13:33,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:13:33,062 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 7 states. [2020-11-28 03:13:33,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:13:33,380 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2020-11-28 03:13:33,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:13:33,382 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2020-11-28 03:13:33,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:13:33,399 INFO L225 Difference]: With dead ends: 66 [2020-11-28 03:13:33,399 INFO L226 Difference]: Without dead ends: 52 [2020-11-28 03:13:33,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:13:33,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-28 03:13:33,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2020-11-28 03:13:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-28 03:13:33,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2020-11-28 03:13:33,449 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 6 [2020-11-28 03:13:33,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:13:33,449 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2020-11-28 03:13:33,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:13:33,449 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2020-11-28 03:13:33,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:13:33,450 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:13:33,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:13:33,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:13:33,451 INFO L429 AbstractCegarLoop]: === Iteration 2 === [recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:13:33,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:33,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1873828402, now seen corresponding path program 1 times [2020-11-28 03:13:33,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:33,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209748186] [2020-11-28 03:13:33,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:33,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:33,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:33,486 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:33,486 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:13:33,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:13:33,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:13:33 BoogieIcfgContainer [2020-11-28 03:13:33,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:13:33,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:13:33,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:13:33,517 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:13:33,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:32" (3/4) ... [2020-11-28 03:13:33,520 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:13:33,567 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d6e3597b-ec99-4fcf-802e-1ba78a206a72/bin/uautomizer/witness.graphml [2020-11-28 03:13:33,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:13:33,575 INFO L168 Benchmark]: Toolchain (without parser) took 1723.07 ms. Allocated memory is still 107.0 MB. Free memory was 79.2 MB in the beginning and 69.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:33,575 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 81.8 MB. Free memory is still 39.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:33,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.21 ms. Allocated memory is still 107.0 MB. Free memory was 78.8 MB in the beginning and 85.4 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:33,577 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.39 ms. Allocated memory is still 107.0 MB. Free memory was 85.4 MB in the beginning and 84.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:33,578 INFO L168 Benchmark]: Boogie Preprocessor took 42.49 ms. Allocated memory is still 107.0 MB. Free memory was 84.2 MB in the beginning and 83.3 MB in the end (delta: 986.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:33,579 INFO L168 Benchmark]: RCFGBuilder took 311.01 ms. Allocated memory is still 107.0 MB. Free memory was 83.3 MB in the beginning and 72.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:33,582 INFO L168 Benchmark]: TraceAbstraction took 1006.81 ms. Allocated memory is still 107.0 MB. Free memory was 71.8 MB in the beginning and 71.4 MB in the end (delta: 366.2 kB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:33,583 INFO L168 Benchmark]: Witness Printer took 50.97 ms. Allocated memory is still 107.0 MB. Free memory was 71.4 MB in the beginning and 69.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:33,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 81.8 MB. Free memory is still 39.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.21 ms. Allocated memory is still 107.0 MB. Free memory was 78.8 MB in the beginning and 85.4 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.39 ms. Allocated memory is still 107.0 MB. Free memory was 85.4 MB in the beginning and 84.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.49 ms. Allocated memory is still 107.0 MB. Free memory was 84.2 MB in the beginning and 83.3 MB in the end (delta: 986.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 311.01 ms. Allocated memory is still 107.0 MB. Free memory was 83.3 MB in the beginning and 72.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1006.81 ms. Allocated memory is still 107.0 MB. Free memory was 71.8 MB in the beginning and 71.4 MB in the end (delta: 366.2 kB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. * Witness Printer took 50.97 ms. Allocated memory is still 107.0 MB. Free memory was 71.4 MB in the beginning and 69.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y; [L22] CALL rec(x) VAL [\old(x)=2147483647] [L10] COND FALSE !(x <= 0) VAL [\old(x)=2147483647, x=2147483647] [L12] COND FALSE !(x%2 == 0) VAL [\old(x)=2147483647, x=2147483647] [L15] ++x VAL [\old(x)=2147483647, x=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 45 SDslu, 71 SDs, 0 SdLazy, 68 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=1, 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 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...