./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/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 914e210bb2ee753bbbdbfa23a6e9397216225fad ............................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-20 05:52:02,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:52:02,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:52:02,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:52:02,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:52:02,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:52:02,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:52:02,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:52:02,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:52:02,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:52:02,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:52:02,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:52:02,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:52:02,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:52:02,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:52:02,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:52:02,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:52:02,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:52:02,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:52:02,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:52:02,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:52:02,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:52:02,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:52:02,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:52:02,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:52:02,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:52:02,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:52:02,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:52:02,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:52:02,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:52:02,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:52:02,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:52:02,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:52:02,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:52:02,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:52:02,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:52:02,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:52:02,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:52:02,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:52:02,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:52:02,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:52:02,734 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-20 05:52:02,749 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:52:02,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:52:02,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 05:52:02,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 05:52:02,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:52:02,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:52:02,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:52:02,752 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:52:02,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:52:02,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:52:02,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:52:02,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:52:02,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:52:02,754 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 05:52:02,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:52:02,754 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:52:02,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:52:02,755 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 05:52:02,755 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 05:52:02,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:52:02,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:52:02,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 05:52:02,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:52:02,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:52:02,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:52:02,757 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 05:52:02,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:52:02,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:52:02,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/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 -> 914e210bb2ee753bbbdbfa23a6e9397216225fad [2019-11-20 05:52:02,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:52:02,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:52:02,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:52:02,950 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:52:02,951 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:52:02,953 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c [2019-11-20 05:52:03,028 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/data/41837d75e/8ccd5691d75b4ee0bf2242f0e4d2bc9a/FLAGb2a547668 [2019-11-20 05:52:03,532 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:52:03,533 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c [2019-11-20 05:52:03,539 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/data/41837d75e/8ccd5691d75b4ee0bf2242f0e4d2bc9a/FLAGb2a547668 [2019-11-20 05:52:03,865 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/data/41837d75e/8ccd5691d75b4ee0bf2242f0e4d2bc9a [2019-11-20 05:52:03,869 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:52:03,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:52:03,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:52:03,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:52:03,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:52:03,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:52:03" (1/1) ... [2019-11-20 05:52:03,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29faf0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:03, skipping insertion in model container [2019-11-20 05:52:03,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:52:03" (1/1) ... [2019-11-20 05:52:03,887 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:52:03,909 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:52:04,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:52:04,138 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:52:04,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:52:04,259 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:52:04,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04 WrapperNode [2019-11-20 05:52:04,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:52:04,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:52:04,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:52:04,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:52:04,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2019-11-20 05:52:04,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2019-11-20 05:52:04,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:52:04,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:52:04,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:52:04,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:52:04,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2019-11-20 05:52:04,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2019-11-20 05:52:04,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2019-11-20 05:52:04,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2019-11-20 05:52:04,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2019-11-20 05:52:04,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2019-11-20 05:52:04,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2019-11-20 05:52:04,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:52:04,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:52:04,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:52:04,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:52:04,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 05:52:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:52:04,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:52:04,770 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:52:04,771 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 05:52:04,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:52:04 BoogieIcfgContainer [2019-11-20 05:52:04,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:52:04,773 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 05:52:04,773 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 05:52:04,785 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 05:52:04,785 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:52:04" (1/1) ... [2019-11-20 05:52:04,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:04,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:52:04,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2019-11-20 05:52:04,846 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-11-20 05:52:04,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 05:52:04,848 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:52:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:05,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:52:05,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:52:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2019-11-20 05:52:05,075 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-11-20 05:52:05,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 05:52:05,075 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:52:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:05,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:52:05,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:52:05,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2019-11-20 05:52:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-11-20 05:52:05,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 05:52:05,152 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:52:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:05,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:52:05,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:52:05,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2019-11-20 05:52:05,288 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2019-11-20 05:52:05,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 05:52:05,288 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:52:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:05,368 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2019-11-20 05:52:05,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:52:05 ImpRootNode [2019-11-20 05:52:05,399 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 05:52:05,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:52:05,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:52:05,401 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:52:05,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:52:04" (3/4) ... [2019-11-20 05:52:05,406 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 05:52:05,455 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_53cf68c2-7eff-4443-9e41-d95d8548aa3f/bin/ukojak/witness.graphml [2019-11-20 05:52:05,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:52:05,458 INFO L168 Benchmark]: Toolchain (without parser) took 1586.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -116.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:52:05,458 INFO L168 Benchmark]: CDTParser took 1.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:52:05,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:52:05,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.14 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. [2019-11-20 05:52:05,460 INFO L168 Benchmark]: Boogie Preprocessor took 22.37 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. [2019-11-20 05:52:05,461 INFO L168 Benchmark]: RCFGBuilder took 444.76 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:52:05,461 INFO L168 Benchmark]: CodeCheck took 626.76 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:52:05,462 INFO L168 Benchmark]: Witness Printer took 55.04 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. [2019-11-20 05:52:05,465 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 1 procedures, 16 locations, 6 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 26 SDslu, 24 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L20] COND TRUE x > 0 && y > 0 && z > 0 [L21] COND TRUE y > x [L22] y = z [L23] x = __VERIFIER_nondet_int() [L24] x - 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 388.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.14 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 22.37 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 444.76 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * CodeCheck took 626.76 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * Witness Printer took 55.04 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...