./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/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 5155088d89d02424835a418b2f1dfc7cb44efefa .................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-01 22:50:08,632 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:50:08,633 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:50:08,639 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:50:08,639 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:50:08,640 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:50:08,640 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:50:08,641 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:50:08,642 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:50:08,642 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:50:08,642 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:50:08,643 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:50:08,643 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:50:08,644 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:50:08,644 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:50:08,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:50:08,645 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:50:08,646 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:50:08,647 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:50:08,647 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:50:08,648 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:50:08,648 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:50:08,649 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:50:08,650 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:50:08,650 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:50:08,650 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:50:08,651 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:50:08,651 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:50:08,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:50:08,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:50:08,652 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:50:08,652 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:50:08,653 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:50:08,653 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:50:08,653 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:50:08,653 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:50:08,654 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-01 22:50:08,661 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:50:08,661 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:50:08,661 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:50:08,662 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-01 22:50:08,662 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 22:50:08,662 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 22:50:08,662 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:50:08,662 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 22:50:08,663 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 22:50:08,663 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:50:08,663 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 22:50:08,663 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:50:08,663 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 22:50:08,663 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-01 22:50:08,663 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 22:50:08,663 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 22:50:08,664 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 22:50:08,664 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 22:50:08,664 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 22:50:08,664 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:50:08,664 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:50:08,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 22:50:08,664 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:50:08,664 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:50:08,665 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 22:50:08,665 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 22:50:08,665 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:50:08,665 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 22:50:08,665 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/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 -> 5155088d89d02424835a418b2f1dfc7cb44efefa [2018-12-01 22:50:08,683 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:50:08,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:50:08,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:50:08,695 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:50:08,695 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:50:08,696 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2_false-no-overflow.c [2018-12-01 22:50:08,729 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/data/cb05edc0b/b00256ac06d24c5ea7988172610c4f5a/FLAG0281e5d85 [2018-12-01 22:50:09,116 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:50:09,116 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2_false-no-overflow.c [2018-12-01 22:50:09,120 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/data/cb05edc0b/b00256ac06d24c5ea7988172610c4f5a/FLAG0281e5d85 [2018-12-01 22:50:09,130 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/data/cb05edc0b/b00256ac06d24c5ea7988172610c4f5a [2018-12-01 22:50:09,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:50:09,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:50:09,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:50:09,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:50:09,136 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:50:09,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d01f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09, skipping insertion in model container [2018-12-01 22:50:09,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:50:09,152 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:50:09,247 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:50:09,249 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:50:09,259 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:50:09,267 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:50:09,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09 WrapperNode [2018-12-01 22:50:09,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:50:09,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:50:09,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:50:09,268 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:50:09,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:50:09,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:50:09,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:50:09,285 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:50:09,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:50:09,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:50:09,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:50:09,296 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:50:09,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:50:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/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 [2018-12-01 22:50:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:50:09,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:50:09,447 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:50:09,447 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-01 22:50:09,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:50:09 BoogieIcfgContainer [2018-12-01 22:50:09,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:50:09,448 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 22:50:09,448 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 22:50:09,454 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 22:50:09,454 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:50:09" (1/1) ... [2018-12-01 22:50:09,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:50:09,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:50:09,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2018-12-01 22:50:09,482 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-12-01 22:50:09,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-01 22:50:09,483 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:50:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:50:09,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:50:09,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:50:09,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2018-12-01 22:50:09,599 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2018-12-01 22:50:09,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-01 22:50:09,600 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:50:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:50:09,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:50:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:50:09,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2018-12-01 22:50:09,758 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2018-12-01 22:50:09,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 22:50:09,758 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:50:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:50:09,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:50:09,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:50:09,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2018-12-01 22:50:09,877 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2018-12-01 22:50:09,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 22:50:09,877 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:50:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:50:09,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:50:10,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 22:50:10,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2018-12-01 22:50:10,005 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2018-12-01 22:50:10,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 22:50:10,005 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 22:50:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:50:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:50:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:50:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:50:10,035 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2018-12-01 22:50:10,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 10:50:10 ImpRootNode [2018-12-01 22:50:10,049 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 22:50:10,050 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:50:10,050 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:50:10,050 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:50:10,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:50:09" (3/4) ... [2018-12-01 22:50:10,052 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 22:50:10,075 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2f66f3a2-d4a5-47e3-ab50-be36caf543de/bin-2019/ukojak/witness.graphml [2018-12-01 22:50:10,075 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:50:10,076 INFO L168 Benchmark]: Toolchain (without parser) took 943.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 953.3 MB in the beginning and 981.5 MB in the end (delta: -28.2 MB). Peak memory consumption was 79.3 MB. Max. memory is 11.5 GB. [2018-12-01 22:50:10,076 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:50:10,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.15 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:50:10,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.17 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:50:10,077 INFO L168 Benchmark]: Boogie Preprocessor took 10.16 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:50:10,078 INFO L168 Benchmark]: RCFGBuilder took 152.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -153.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-01 22:50:10,078 INFO L168 Benchmark]: CodeCheck took 601.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 984.2 MB in the end (delta: 109.6 MB). Peak memory consumption was 109.6 MB. Max. memory is 11.5 GB. [2018-12-01 22:50:10,078 INFO L168 Benchmark]: Witness Printer took 25.58 ms. Allocated memory is still 1.1 GB. Free memory was 984.2 MB in the beginning and 981.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:50:10,080 INFO L336 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, 19 locations, 6 error locations. UNSAFE Result, 0.5s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 48 SDtfs, 62 SDslu, 116 SDs, 0 SdLazy, 272 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 [L22] old_x + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.15 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.17 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.16 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 152.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -153.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * CodeCheck took 601.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 984.2 MB in the end (delta: 109.6 MB). Peak memory consumption was 109.6 MB. Max. memory is 11.5 GB. * Witness Printer took 25.58 ms. Allocated memory is still 1.1 GB. Free memory was 984.2 MB in the beginning and 981.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...