./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Ackermann-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Ackermann-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/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 5917ee93972738bd406398210804e4342159e8a8 .......................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-26 02:51:06,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:51:06,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:51:06,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:51:06,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:51:06,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:51:06,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:51:06,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:51:06,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:51:06,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:51:06,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:51:06,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:51:06,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:51:06,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:51:06,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:51:06,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:51:06,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:51:06,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:51:06,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:51:06,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:51:06,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:51:06,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:51:06,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:51:06,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:51:06,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:51:06,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:51:06,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:51:06,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:51:06,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:51:06,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:51:06,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:51:06,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:51:06,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:51:06,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:51:06,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:51:06,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:51:06,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:51:06,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:51:06,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:51:06,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:51:06,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:51:06,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-26 02:51:06,381 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:51:06,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:51:06,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:51:06,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:51:06,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:51:06,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:51:06,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:51:06,383 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:51:06,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:51:06,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:51:06,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:51:06,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:51:06,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:51:06,384 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:51:06,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:51:06,385 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:51:06,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:51:06,385 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:51:06,385 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:51:06,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:51:06,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:51:06,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:51:06,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:51:06,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:51:06,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:51:06,387 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:51:06,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:51:06,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:51:06,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/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 -> 5917ee93972738bd406398210804e4342159e8a8 [2019-11-26 02:51:06,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:51:06,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:51:06,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:51:06,531 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:51:06,531 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:51:06,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Ackermann-1.c [2019-11-26 02:51:06,597 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/data/a8491a0d7/a829ab3e6d5b443e9f4f83feea38572b/FLAG7db795ca0 [2019-11-26 02:51:06,973 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:51:06,974 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/sv-benchmarks/c/termination-crafted/Ackermann-1.c [2019-11-26 02:51:06,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/data/a8491a0d7/a829ab3e6d5b443e9f4f83feea38572b/FLAG7db795ca0 [2019-11-26 02:51:07,395 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/data/a8491a0d7/a829ab3e6d5b443e9f4f83feea38572b [2019-11-26 02:51:07,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:51:07,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:51:07,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:51:07,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:51:07,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:51:07,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a2a056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07, skipping insertion in model container [2019-11-26 02:51:07,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:51:07,426 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:51:07,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:51:07,576 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:51:07,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:51:07,680 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:51:07,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07 WrapperNode [2019-11-26 02:51:07,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:51:07,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:51:07,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:51:07,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:51:07,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:51:07,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:51:07,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:51:07,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:51:07,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07" (1/1) ... [2019-11-26 02:51:07,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:51:07,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:51:07,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:51:07,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:51:07,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:51:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/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 [2019-11-26 02:51:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure Ack [2019-11-26 02:51:07,790 INFO L138 BoogieDeclarations]: Found implementation of procedure Ack [2019-11-26 02:51:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:51:07,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:51:08,008 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:51:08,009 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:51:08,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:08 BoogieIcfgContainer [2019-11-26 02:51:08,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:51:08,010 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:51:08,010 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:51:08,029 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:51:08,030 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:08" (1/1) ... [2019-11-26 02:51:08,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:08,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:51:08,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2019-11-26 02:51:08,070 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2019-11-26 02:51:08,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:51:08,073 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:51:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:51:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:51:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:51:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:51:08,208 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2019-11-26 02:51:08,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:51:08 ImpRootNode [2019-11-26 02:51:08,230 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:51:08,230 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:51:08,230 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:51:08,230 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:51:08,231 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:08" (3/4) ... [2019-11-26 02:51:08,232 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:51:08,262 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a0ce2aa9-ea2f-4ec1-b73c-cb014df32f1f/bin/ukojak/witness.graphml [2019-11-26 02:51:08,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:51:08,263 INFO L168 Benchmark]: Toolchain (without parser) took 864.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:08,264 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:08,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -207.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:08,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:08,266 INFO L168 Benchmark]: Boogie Preprocessor took 31.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:08,266 INFO L168 Benchmark]: RCFGBuilder took 265.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:08,267 INFO L168 Benchmark]: CodeCheck took 219.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:08,267 INFO L168 Benchmark]: Witness Printer took 31.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:08,271 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 33 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 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, 6 NumberOfCodeBlocks, 6 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: 10]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x = __VERIFIER_nondet_int(); [L17] int y = __VERIFIER_nondet_int(); [L18] COND FALSE !(x < 0 || y < 0) [L21] CALL Ack(x, y) VAL [\old(m)=0, \old(n)=2147483647] [L10] COND TRUE m == 0 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] [L10] n+1 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 944.8 MB in the beginning and 1.2 GB in the end (delta: -207.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 265.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 219.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 31.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...