./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/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 32bit --witnessprinter.graph.data.programhash 1c7eaf6fd654eb823cca8af53b20b25aebb12776 ....................................................................................................................................................................................................................... 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-cad4683 [2019-10-22 10:14:58,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:14:58,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:14:58,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:14:58,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:14:58,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:14:58,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:14:58,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:14:58,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:14:58,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:14:58,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:14:58,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:14:58,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:14:58,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:14:58,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:14:58,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:14:58,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:14:58,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:14:58,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:14:58,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:14:58,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:14:58,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:14:58,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:14:58,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:14:58,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:14:58,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:14:58,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:14:58,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:14:58,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:14:58,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:14:58,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:14:58,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:14:58,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:14:58,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:14:58,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:14:58,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:14:58,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:14:58,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:14:58,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:14:58,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:14:58,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:14:58,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2019-10-22 10:14:58,859 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:14:58,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:14:58,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:14:58,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:14:58,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:14:58,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:14:58,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:14:58,862 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:14:58,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:14:58,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:14:58,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:14:58,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:14:58,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:14:58,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:14:58,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:14:58,863 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:14:58,863 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:14:58,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:14:58,863 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:14:58,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:14:58,864 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:14:58,864 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:14:58,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:14:58,864 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:14:58,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:14:58,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:14:58,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:14:58,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:14:58,865 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:14:58,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:14:58,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:14:58,866 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/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c7eaf6fd654eb823cca8af53b20b25aebb12776 [2019-10-22 10:14:58,888 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:14:58,897 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:14:58,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:14:58,901 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:14:58,901 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:14:58,902 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c [2019-10-22 10:14:58,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/data/0579f471e/5968fed7d1594b5c827aa051d5a5d0d0/FLAG92ffc4692 [2019-10-22 10:14:59,311 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:14:59,312 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c [2019-10-22 10:14:59,317 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/data/0579f471e/5968fed7d1594b5c827aa051d5a5d0d0/FLAG92ffc4692 [2019-10-22 10:14:59,717 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/data/0579f471e/5968fed7d1594b5c827aa051d5a5d0d0 [2019-10-22 10:14:59,719 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:14:59,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:14:59,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:14:59,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:14:59,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:14:59,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:14:59,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fed1cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59, skipping insertion in model container [2019-10-22 10:14:59,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:14:59,734 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:14:59,748 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:14:59,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:14:59,871 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:14:59,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:14:59,959 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:14:59,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59 WrapperNode [2019-10-22 10:14:59,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:14:59,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:14:59,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:14:59,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:14:59,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:14:59,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:14:59,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:14:59,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:14:59,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:14:59,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:15:00,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:15:00,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:15:00,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:15:00,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:15:00,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:15:00,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:15:00,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59" (1/1) ... [2019-10-22 10:15:00,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:15:00,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:15:00,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:15:00,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:15:00,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/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 [2019-10-22 10:15:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2019-10-22 10:15:00,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2019-10-22 10:15:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2019-10-22 10:15:00,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2019-10-22 10:15:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:15:00,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:15:00,383 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:15:00,383 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 10:15:00,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:00 BoogieIcfgContainer [2019-10-22 10:15:00,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:15:00,385 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:15:00,385 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:15:00,398 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:15:00,399 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:00" (1/1) ... [2019-10-22 10:15:00,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:15:00,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2019-10-22 10:15:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-10-22 10:15:00,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:15:00,457 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:00,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:00,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 35 transitions. [2019-10-22 10:15:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2019-10-22 10:15:00,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:15:00,725 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:00,779 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-10-22 10:15:00,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:15:00 ImpRootNode [2019-10-22 10:15:00,801 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:15:00,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:15:00,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:15:00,802 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:15:00,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:00" (3/4) ... [2019-10-22 10:15:00,805 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:15:00,835 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cc85e7aa-c64b-43ac-9974-4ecfa79f3ece/bin/ukojak/witness.graphml [2019-10-22 10:15:00,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:15:00,838 INFO L168 Benchmark]: Toolchain (without parser) took 1116.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -144.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:00,838 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:00,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:00,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:00,839 INFO L168 Benchmark]: Boogie Preprocessor took 25.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:00,840 INFO L168 Benchmark]: RCFGBuilder took 365.88 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:00,841 INFO L168 Benchmark]: CodeCheck took 416.51 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:00,841 INFO L168 Benchmark]: Witness Printer took 33.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:00,843 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 3 procedures, 26 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 22 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 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, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 32]: integer overflow possible integer overflow possible We found a FailurePath: [L38] int n = __VERIFIER_nondet_int(); [L39] CALL isEven(n) VAL [\old(n)=-2147483648] [L27] COND FALSE !(n == 0) VAL [\old(n)=-2147483648, n=-2147483648] [L29] COND FALSE !(n == 1) VAL [\old(n)=-2147483648, n=-2147483648] [L32] n - 1 VAL [\old(n)=-2147483648, n=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 237.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 365.88 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * CodeCheck took 416.51 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 33.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...