./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/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 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 0.2.0-a4ecdab [2020-11-29 23:58:15,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:58:15,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:58:15,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:58:15,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:58:15,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:58:15,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:58:15,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:58:15,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:58:15,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:58:15,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:58:15,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:58:15,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:58:15,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:58:15,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:58:15,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:58:15,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:58:15,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:58:15,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:58:15,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:58:15,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:58:15,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:58:15,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:58:15,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:58:15,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:58:15,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:58:15,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:58:15,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:58:15,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:58:15,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:58:15,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:58:15,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:58:15,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:58:15,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:58:15,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:58:15,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:58:15,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:58:15,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:58:15,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:58:15,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:58:15,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:58:15,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-29 23:58:15,868 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:58:15,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:58:15,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 23:58:15,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 23:58:15,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:58:15,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:58:15,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:58:15,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:58:15,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:58:15,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:58:15,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:58:15,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:58:15,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:58:15,878 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 23:58:15,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:58:15,879 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:58:15,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:58:15,880 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 23:58:15,880 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 23:58:15,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:58:15,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:58:15,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 23:58:15,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:58:15,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:58:15,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:58:15,882 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 23:58:15,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:58:15,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:58:15,883 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_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5155088d89d02424835a418b2f1dfc7cb44efefa [2020-11-29 23:58:16,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:58:16,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:58:16,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:58:16,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:58:16,355 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:58:16,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c [2020-11-29 23:58:16,438 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/data/2e641cbc8/68bb4a91e31e42c5b08909d1526816ae/FLAG525b6686a [2020-11-29 23:58:17,142 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:58:17,144 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c [2020-11-29 23:58:17,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/data/2e641cbc8/68bb4a91e31e42c5b08909d1526816ae/FLAG525b6686a [2020-11-29 23:58:17,511 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/data/2e641cbc8/68bb4a91e31e42c5b08909d1526816ae [2020-11-29 23:58:17,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:58:17,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:58:17,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:58:17,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:58:17,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:58:17,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3b1a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17, skipping insertion in model container [2020-11-29 23:58:17,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:58:17,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:58:17,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:58:17,778 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:58:17,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:58:17,857 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:58:17,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17 WrapperNode [2020-11-29 23:58:17,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:58:17,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:58:17,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:58:17,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:58:17,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:58:17,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:58:17,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:58:17,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:58:17,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17" (1/1) ... [2020-11-29 23:58:17,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:58:17,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:58:17,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:58:17,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:58:17,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:58:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/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 [2020-11-29 23:58:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:58:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:58:18,549 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:58:18,549 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 23:58:18,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:58:18 BoogieIcfgContainer [2020-11-29 23:58:18,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:58:18,553 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 23:58:18,554 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 23:58:18,569 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 23:58:18,569 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:58:18" (1/1) ... [2020-11-29 23:58:18,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:58:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:58:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-11-29 23:58:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-29 23:58:18,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 23:58:18,649 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:58:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:58:18,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:58:19,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:58:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-11-29 23:58:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-11-29 23:58:19,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 23:58:19,048 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:58:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:58:19,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:58:19,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:58:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-11-29 23:58:19,562 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-11-29 23:58:19,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 23:58:19,563 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:58:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:58:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:58:19,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:58:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2020-11-29 23:58:19,903 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2020-11-29 23:58:19,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 23:58:19,903 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:58:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:58:19,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:58:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:58:20,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2020-11-29 23:58:20,247 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2020-11-29 23:58:20,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 23:58:20,248 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:58:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:20,270 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:20,297 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:20,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:58:20,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:58:20,379 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-11-29 23:58:20,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 11:58:20 ImpRootNode [2020-11-29 23:58:20,417 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 23:58:20,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:58:20,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:58:20,418 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:58:20,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:58:18" (3/4) ... [2020-11-29 23:58:20,421 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 23:58:20,502 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_72ef6d44-2a4c-4081-8f98-e1385a7f0feb/bin/ukojak/witness.graphml [2020-11-29 23:58:20,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:58:20,505 INFO L168 Benchmark]: Toolchain (without parser) took 2977.64 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 63.2 MB in the beginning and 42.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 48.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:20,506 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 92.3 MB. Free memory is still 52.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:58:20,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.31 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 69.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:20,508 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.09 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 68.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:58:20,508 INFO L168 Benchmark]: Boogie Preprocessor took 31.71 ms. Allocated memory is still 92.3 MB. Free memory was 68.8 MB in the beginning and 67.8 MB in the end (delta: 978.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:58:20,509 INFO L168 Benchmark]: RCFGBuilder took 613.35 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 57.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:20,511 INFO L168 Benchmark]: CodeCheck took 1863.38 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 56.8 MB in the beginning and 44.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:20,511 INFO L168 Benchmark]: Witness Printer took 85.04 ms. Allocated memory is still 119.5 MB. Free memory was 44.3 MB in the beginning and 42.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:58:20,528 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, 16 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 62 SDslu, 116 SDs, 0 SdLazy, 272 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s 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 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 0.47 ms. Allocated memory is still 92.3 MB. Free memory is still 52.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.31 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 69.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.09 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 68.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.71 ms. Allocated memory is still 92.3 MB. Free memory was 68.8 MB in the beginning and 67.8 MB in the end (delta: 978.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 613.35 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 57.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 1863.38 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 56.8 MB in the beginning and 44.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. * Witness Printer took 85.04 ms. Allocated memory is still 119.5 MB. Free memory was 44.3 MB in the beginning and 42.2 MB in the end (delta: 2.0 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...