./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f299f7e43971e739d4799ece224b61839f7f06e4 ............................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 17:39:38,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:39:38,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:39:38,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:39:38,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:39:38,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:39:38,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:39:38,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:39:38,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:39:38,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:39:38,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:39:38,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:39:38,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:39:38,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:39:38,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:39:38,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:39:38,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:39:38,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:39:38,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:39:38,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:39:38,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:39:38,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:39:38,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:39:38,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:39:38,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:39:38,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:39:38,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:39:38,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:39:38,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:39:38,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:39:38,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:39:38,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:39:38,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:39:38,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:39:38,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:39:38,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:39:38,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:39:38,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:39:38,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:39:38,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:39:38,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:39:38,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 17:39:38,492 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:39:38,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:39:38,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:39:38,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:39:38,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:39:38,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:39:38,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:39:38,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:39:38,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:39:38,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:39:38,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:39:38,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:39:38,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:39:38,500 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 17:39:38,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:39:38,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:39:38,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:39:38,501 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:39:38,502 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:39:38,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:39:38,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:39:38,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:39:38,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:39:38,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:39:38,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:39:38,504 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:39:38,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:39:38,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:39:38,505 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_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f299f7e43971e739d4799ece224b61839f7f06e4 [2020-12-01 17:39:38,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:39:39,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:39:39,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:39:39,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:39:39,009 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:39:39,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c [2020-12-01 17:39:39,111 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/data/6fbd5383b/eff71f85a5b7402484e94d6c860dd64c/FLAGddfc36d81 [2020-12-01 17:39:39,840 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:39:39,841 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c [2020-12-01 17:39:39,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/data/6fbd5383b/eff71f85a5b7402484e94d6c860dd64c/FLAGddfc36d81 [2020-12-01 17:39:40,190 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/data/6fbd5383b/eff71f85a5b7402484e94d6c860dd64c [2020-12-01 17:39:40,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:39:40,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:39:40,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:39:40,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:39:40,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:39:40,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785574d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40, skipping insertion in model container [2020-12-01 17:39:40,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:39:40,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:39:40,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:39:40,512 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:39:40,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:39:40,559 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:39:40,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40 WrapperNode [2020-12-01 17:39:40,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:39:40,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:39:40,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:39:40,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:39:40,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:39:40,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:39:40,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:39:40,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:39:40,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40" (1/1) ... [2020-12-01 17:39:40,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:39:40,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:39:40,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:39:40,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:39:40,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:39:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2020-12-01 17:39:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:39:40,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:39:41,121 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:39:41,121 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 17:39:41,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:39:41 BoogieIcfgContainer [2020-12-01 17:39:41,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:39:41,129 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:39:41,129 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:39:41,144 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:39:41,144 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:39:41" (1/1) ... [2020-12-01 17:39:41,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:39:41,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:39:41,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-12-01 17:39:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-12-01 17:39:41,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 17:39:41,227 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:39:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:39:41,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:39:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:39:41,377 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:39:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:39:41,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:39:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:39:41,469 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:39:41,479 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-12-01 17:39:41,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:39:41 ImpRootNode [2020-12-01 17:39:41,500 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:39:41,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:39:41,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:39:41,502 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:39:41,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:39:41" (3/4) ... [2020-12-01 17:39:41,505 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:39:41,567 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_30973edd-d35b-4f3d-8683-6323e3ecd301/bin/ukojak/witness.graphml [2020-12-01 17:39:41,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:39:41,586 INFO L168 Benchmark]: Toolchain (without parser) took 1384.17 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 44.1 MB in the beginning and 56.2 MB in the end (delta: -12.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:41,588 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 75.5 MB. Free memory was 56.2 MB in the beginning and 56.2 MB in the end (delta: 24.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:39:41,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.78 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 44.0 MB in the beginning and 79.2 MB in the end (delta: -35.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:41,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.36 ms. Allocated memory is still 100.7 MB. Free memory was 79.2 MB in the beginning and 78.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:39:41,593 INFO L168 Benchmark]: Boogie Preprocessor took 34.71 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 77.1 MB in the end (delta: 884.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:41,595 INFO L168 Benchmark]: RCFGBuilder took 480.22 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 66.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:41,596 INFO L168 Benchmark]: CodeCheck took 372.05 ms. Allocated memory is still 100.7 MB. Free memory was 66.6 MB in the beginning and 57.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:41,598 INFO L168 Benchmark]: Witness Printer took 81.26 ms. Allocated memory is still 100.7 MB. Free memory was 57.6 MB in the beginning and 56.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:41,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, oldx; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < 5 [L27] oldx = x [L28] oldx - y * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 75.5 MB. Free memory was 56.2 MB in the beginning and 56.2 MB in the end (delta: 24.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 359.78 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 44.0 MB in the beginning and 79.2 MB in the end (delta: -35.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.36 ms. Allocated memory is still 100.7 MB. Free memory was 79.2 MB in the beginning and 78.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.71 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 77.1 MB in the end (delta: 884.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 480.22 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 66.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 372.05 ms. Allocated memory is still 100.7 MB. Free memory was 66.6 MB in the beginning and 57.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 81.26 ms. Allocated memory is still 100.7 MB. Free memory was 57.6 MB in the beginning and 56.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...