./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.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_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/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 f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 ...................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:16:00,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:16:00,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:16:00,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:16:00,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:16:00,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:16:00,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:16:00,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:16:00,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:16:00,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:16:00,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:16:00,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:16:00,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:16:00,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:16:00,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:16:00,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:16:00,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:16:00,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:16:00,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:16:00,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:16:00,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:16:00,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:16:00,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:16:00,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:16:00,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:16:00,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:16:00,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:16:00,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:16:00,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:16:00,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:16:00,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:16:00,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:16:00,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:16:00,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:16:00,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:16:00,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:16:00,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:16:00,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:16:00,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:16:00,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:16:00,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:16:00,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-29 20:16:00,788 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:16:00,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:16:00,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 20:16:00,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 20:16:00,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:16:00,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:16:00,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:16:00,798 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:16:00,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:16:00,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:16:00,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:16:00,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:16:00,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:16:00,801 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 20:16:00,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:16:00,801 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:16:00,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:16:00,802 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 20:16:00,802 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 20:16:00,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:16:00,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:16:00,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 20:16:00,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:16:00,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:16:00,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:16:00,804 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 20:16:00,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:16:00,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:16:00,805 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_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 [2020-11-29 20:16:01,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:16:01,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:16:01,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:16:01,178 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:16:01,185 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:16:01,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2020-11-29 20:16:01,279 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/data/ac4094e95/5d328f7abd3c49c8bf52c6d632749e18/FLAG592f5e9bd [2020-11-29 20:16:01,799 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:16:01,800 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2020-11-29 20:16:01,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/data/ac4094e95/5d328f7abd3c49c8bf52c6d632749e18/FLAG592f5e9bd [2020-11-29 20:16:02,222 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/data/ac4094e95/5d328f7abd3c49c8bf52c6d632749e18 [2020-11-29 20:16:02,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:16:02,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:16:02,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:16:02,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:16:02,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:16:02,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1b7aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02, skipping insertion in model container [2020-11-29 20:16:02,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:16:02,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:16:02,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:16:02,523 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:16:02,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:16:02,578 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:16:02,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02 WrapperNode [2020-11-29 20:16:02,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:16:02,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:16:02,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:16:02,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:16:02,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:16:02,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:16:02,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:16:02,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:16:02,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02" (1/1) ... [2020-11-29 20:16:02,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:16:02,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:16:02,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:16:02,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:16:02,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/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 20:16:02,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:16:02,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:16:03,026 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:16:03,027 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 20:16:03,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:03 BoogieIcfgContainer [2020-11-29 20:16:03,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:16:03,031 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 20:16:03,031 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 20:16:03,045 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 20:16:03,045 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:03" (1/1) ... [2020-11-29 20:16:03,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:16:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-29 20:16:03,113 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-29 20:16:03,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 20:16:03,116 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:16:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:03,275 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 20:16:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-29 20:16:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-29 20:16:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 20:16:03,382 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:16:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:03,413 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 20:16:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:03,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2020-11-29 20:16:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-11-29 20:16:03,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:16:03,565 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:16:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:03,627 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 20:16:03,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:03,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-29 20:16:03,877 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-29 20:16:03,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:16:03,878 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:16:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:03,947 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 20:16:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:04,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2020-11-29 20:16:04,179 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-11-29 20:16:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:16:04,179 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:16:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:16:04,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:04,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2020-11-29 20:16:04,376 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2020-11-29 20:16:04,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 20:16:04,376 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:16:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:04,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 20:16:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-11-29 20:16:04,620 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-11-29 20:16:04,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:16:04,620 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:16:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 20:16:05,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2020-11-29 20:16:05,446 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-29 20:16:05,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:16:05,447 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:16:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 20:16:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2020-11-29 20:16:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2020-11-29 20:16:05,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 20:16:05,897 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:16:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 20:16:06,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:06,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-11-29 20:16:06,154 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-11-29 20:16:06,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 20:16:06,155 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:16:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 20:16:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:16:06,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-11-29 20:16:06,432 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-29 20:16:06,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:16:06,432 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2020-11-29 20:16:06,441 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-29 20:16:06,564 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 20:16:06,567 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-11-29 20:16:06,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 08:16:06 ImpRootNode [2020-11-29 20:16:06,574 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 20:16:06,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:16:06,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:16:06,575 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:16:06,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:03" (3/4) ... [2020-11-29 20:16:06,579 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:16:06,591 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 20:16:06,591 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:16:06,591 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:16:06,636 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bee5bd2f-cd80-46bd-9de5-3f70bc4735c1/bin/ukojak/witness.graphml [2020-11-29 20:16:06,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:16:06,638 INFO L168 Benchmark]: Toolchain (without parser) took 4407.71 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 61.0 MB in the beginning and 41.0 MB in the end (delta: 20.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:06,639 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 92.3 MB. Free memory was 51.7 MB in the beginning and 51.7 MB in the end (delta: 34.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:16:06,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.33 ms. Allocated memory is still 92.3 MB. Free memory was 60.8 MB in the beginning and 70.3 MB in the end (delta: -9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:06,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.75 ms. Allocated memory is still 92.3 MB. Free memory was 70.3 MB in the beginning and 69.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:16:06,641 INFO L168 Benchmark]: Boogie Preprocessor took 23.14 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 68.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:16:06,642 INFO L168 Benchmark]: RCFGBuilder took 382.62 ms. Allocated memory is still 92.3 MB. Free memory was 68.0 MB in the beginning and 57.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:06,643 INFO L168 Benchmark]: CodeCheck took 3543.17 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 57.5 MB in the beginning and 43.0 MB in the end (delta: 14.5 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:06,644 INFO L168 Benchmark]: Witness Printer took 61.21 ms. Allocated memory is still 123.7 MB. Free memory was 43.0 MB in the beginning and 41.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:06,648 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, 12 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2048 SDtfs, 4162 SDslu, 0 SDs, 0 SdLazy, 21786 SolverSat, 4952 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 697 GetRequests, 593 SyntacticMatches, 34 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2032 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 1745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 35/42 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 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (1 <= y && x <= 1073741823) && 0 <= x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 92.3 MB. Free memory was 51.7 MB in the beginning and 51.7 MB in the end (delta: 34.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 348.33 ms. Allocated memory is still 92.3 MB. Free memory was 60.8 MB in the beginning and 70.3 MB in the end (delta: -9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.75 ms. Allocated memory is still 92.3 MB. Free memory was 70.3 MB in the beginning and 69.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.14 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 68.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 382.62 ms. Allocated memory is still 92.3 MB. Free memory was 68.0 MB in the beginning and 57.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 3543.17 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 57.5 MB in the beginning and 43.0 MB in the end (delta: 14.5 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. * Witness Printer took 61.21 ms. Allocated memory is still 123.7 MB. Free memory was 43.0 MB in the beginning and 41.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...