./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/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 588716e5dd1c3d01882e1bf0a06b3529d9c3d880 ............................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:35:49,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:35:49,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:35:50,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:35:50,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:35:50,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:35:50,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:35:50,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:35:50,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:35:50,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:35:50,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:35:50,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:35:50,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:35:50,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:35:50,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:35:50,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:35:50,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:35:50,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:35:50,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:35:50,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:35:50,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:35:50,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:35:50,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:35:50,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:35:50,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:35:50,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:35:50,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:35:50,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:35:50,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:35:50,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:35:50,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:35:50,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:35:50,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:35:50,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:35:50,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:35:50,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:35:50,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:35:50,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:35:50,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:35:50,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:35:50,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:35:50,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 17:35:50,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:35:50,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:35:50,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:35:50,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:35:50,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:35:50,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:35:50,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:35:50,177 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:35:50,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:35:50,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:35:50,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:35:50,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:35:50,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:35:50,180 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 17:35:50,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:35:50,181 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:35:50,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:35:50,181 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:35:50,182 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:35:50,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:35:50,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:35:50,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:35:50,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:35:50,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:35:50,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:35:50,184 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:35:50,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:35:50,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:35:50,184 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_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 588716e5dd1c3d01882e1bf0a06b3529d9c3d880 [2020-12-01 17:35:50,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:35:50,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:35:50,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:35:50,585 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:35:50,586 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:35:50,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2020-12-01 17:35:50,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/data/b0a3d2b65/44e66762fa68435a936382efdab85303/FLAG97f2b55c9 [2020-12-01 17:35:51,323 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:35:51,324 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3.c [2020-12-01 17:35:51,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/data/b0a3d2b65/44e66762fa68435a936382efdab85303/FLAG97f2b55c9 [2020-12-01 17:35:51,690 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/data/b0a3d2b65/44e66762fa68435a936382efdab85303 [2020-12-01 17:35:51,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:35:51,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:35:51,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:35:51,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:35:51,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:35:51,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:35:51" (1/1) ... [2020-12-01 17:35:51,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7404ece1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:51, skipping insertion in model container [2020-12-01 17:35:51,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:35:51" (1/1) ... [2020-12-01 17:35:51,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:35:51,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:35:51,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:35:52,007 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:35:52,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:35:52,050 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:35:52,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52 WrapperNode [2020-12-01 17:35:52,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:35:52,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:35:52,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:35:52,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:35:52,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52" (1/1) ... [2020-12-01 17:35:52,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52" (1/1) ... [2020-12-01 17:35:52,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:35:52,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:35:52,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:35:52,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:35:52,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52" (1/1) ... [2020-12-01 17:35:52,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52" (1/1) ... [2020-12-01 17:35:52,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52" (1/1) ... [2020-12-01 17:35:52,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52" (1/1) ... [2020-12-01 17:35:52,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52" (1/1) ... [2020-12-01 17:35:52,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52" (1/1) ... [2020-12-01 17:35:52,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52" (1/1) ... [2020-12-01 17:35:52,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:35:52,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:35:52,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:35:52,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:35:52,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:35:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:35:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:35:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:35:52,577 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:35:52,577 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 17:35:52,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:35:52 BoogieIcfgContainer [2020-12-01 17:35:52,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:35:52,582 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:35:52,589 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:35:52,608 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:35:52,623 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:35:52" (1/1) ... [2020-12-01 17:35:52,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:35:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:35:52,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-12-01 17:35:52,695 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-01 17:35:52,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:35:52,710 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:35:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:35:53,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:35:53,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:35:53,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-12-01 17:35:53,116 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-01 17:35:53,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:35:53,116 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:35:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:35:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:35:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:35:53,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-12-01 17:35:53,582 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-12-01 17:35:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:35:53,582 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:35:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:35:53,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:35:53,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:35:53,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2020-12-01 17:35:53,890 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2020-12-01 17:35:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:35:53,891 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:35:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:35:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:35:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:35:54,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2020-12-01 17:35:54,245 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2020-12-01 17:35:54,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:35:54,245 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:35:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:35:54,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:35:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:35:54,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:35:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:35:54,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:35:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:35:54,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:35:54,369 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-12-01 17:35:54,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:35:54 ImpRootNode [2020-12-01 17:35:54,394 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:35:54,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:35:54,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:35:54,396 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:35:54,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:35:52" (3/4) ... [2020-12-01 17:35:54,399 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:35:54,476 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2dca9eb3-50e5-48fa-bceb-83c02b757b9a/bin/ukojak/witness.graphml [2020-12-01 17:35:54,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:35:54,483 INFO L168 Benchmark]: Toolchain (without parser) took 2782.49 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 48.5 MB in the beginning and 55.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:35:54,484 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory is still 37.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:35:54,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.62 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 48.1 MB in the beginning and 75.8 MB in the end (delta: -27.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:35:54,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.57 ms. Allocated memory is still 96.5 MB. Free memory was 75.8 MB in the beginning and 74.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:35:54,489 INFO L168 Benchmark]: Boogie Preprocessor took 32.22 ms. Allocated memory is still 96.5 MB. Free memory was 74.6 MB in the beginning and 73.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:35:54,496 INFO L168 Benchmark]: RCFGBuilder took 453.79 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 62.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 17:35:54,497 INFO L168 Benchmark]: CodeCheck took 1812.58 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 57.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-12-01 17:35:54,498 INFO L168 Benchmark]: Witness Printer took 81.03 ms. Allocated memory is still 96.5 MB. Free memory was 56.5 MB in the beginning and 55.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:35:54,502 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, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.9s 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: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int x, y, oldx, oldy; [L19] x = __VERIFIER_nondet_int() [L20] y = __VERIFIER_nondet_int() [L21] COND TRUE x > 0 && y > 0 [L22] oldx = x [L23] oldy = y [L24] COND FALSE !(__VERIFIER_nondet_int() != 0) [L28] EXPR oldy - 2 [L28] x = oldy - 2 [L29] oldx + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory is still 37.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.62 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 48.1 MB in the beginning and 75.8 MB in the end (delta: -27.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.57 ms. Allocated memory is still 96.5 MB. Free memory was 75.8 MB in the beginning and 74.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.22 ms. Allocated memory is still 96.5 MB. Free memory was 74.6 MB in the beginning and 73.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 453.79 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 62.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 1812.58 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 57.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Witness Printer took 81.03 ms. Allocated memory is still 96.5 MB. Free memory was 56.5 MB in the beginning and 55.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...