./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e4ba95c1f8f1c91d02e36bdef8a9bebafd320cc .......................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:41:38,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:41:38,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:41:38,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:41:38,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:41:38,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:41:38,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:41:38,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:41:38,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:41:38,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:41:38,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:41:38,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:41:38,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:41:38,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:41:38,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:41:38,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:41:38,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:41:38,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:41:38,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:41:38,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:41:38,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:41:38,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:41:38,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:41:38,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:41:38,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:41:38,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:41:38,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:41:38,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:41:38,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:41:38,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:41:38,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:41:38,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:41:38,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:41:38,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:41:38,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:41:38,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:41:38,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:41:38,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:41:38,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:41:38,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:41:38,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:41:38,705 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-11-28 04:41:38,746 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:41:38,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:41:38,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:41:38,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:41:38,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:41:38,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:41:38,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:41:38,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:41:38,751 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:41:38,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:41:38,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:41:38,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:41:38,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:41:38,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:41:38,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:41:38,753 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:41:38,753 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:41:38,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:41:38,754 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:41:38,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:41:38,754 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:41:38,755 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:41:38,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:41:38,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:41:38,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:41:38,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:41:38,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:41:38,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:41:38,756 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:41:38,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:41:38,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:41:38,759 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_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4ba95c1f8f1c91d02e36bdef8a9bebafd320cc [2020-11-28 04:41:39,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:41:39,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:41:39,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:41:39,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:41:39,120 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:41:39,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_1.c [2020-11-28 04:41:39,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/data/f0aeed4ca/affe6e54397849c185aaa9901489f958/FLAG3f117d1c5 [2020-11-28 04:41:39,689 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:41:39,689 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/sv-benchmarks/c/bitvector/gcd_1.c [2020-11-28 04:41:39,700 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/data/f0aeed4ca/affe6e54397849c185aaa9901489f958/FLAG3f117d1c5 [2020-11-28 04:41:40,038 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/data/f0aeed4ca/affe6e54397849c185aaa9901489f958 [2020-11-28 04:41:40,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:41:40,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:41:40,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:41:40,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:41:40,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:41:40,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c200a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40, skipping insertion in model container [2020-11-28 04:41:40,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:41:40,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:41:40,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:41:40,262 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:41:40,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:41:40,292 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:41:40,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40 WrapperNode [2020-11-28 04:41:40,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:41:40,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:41:40,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:41:40,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:41:40,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:41:40,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:41:40,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:41:40,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:41:40,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:41:40,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:41:40,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:41:40,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:41:40,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/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 [2020-11-28 04:41:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:41:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:41:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:41:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:41:40,937 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:41:40,937 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-28 04:41:40,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:40 BoogieIcfgContainer [2020-11-28 04:41:40,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:41:40,941 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:41:40,941 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:41:40,959 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:41:40,960 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:41:41,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:41,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-11-28 04:41:41,015 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-11-28 04:41:41,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:41:41,018 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:41,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 04:41:41,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:41:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:41,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-28 04:41:41,462 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-28 04:41:41,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:41:41,462 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:41,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 04:41:41,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:41:41,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:41,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-11-28 04:41:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-28 04:41:41,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:41:41,603 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:41,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 04:41:41,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:41:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:41,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:41,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-28 04:41:41,985 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-28 04:41:41,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:41:41,986 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:42,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 04:41:42,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:41:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:42,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:42,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-11-28 04:41:42,259 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-28 04:41:42,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:41:42,260 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2020-11-28 04:41:42,266 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:41:42,304 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:42,308 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:42,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:41:42 ImpRootNode [2020-11-28 04:41:42,310 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:41:42,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:41:42,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:41:42,311 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:41:42,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:40" (3/4) ... [2020-11-28 04:41:42,315 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:41:42,330 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-28 04:41:42,330 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 04:41:42,331 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:41:42,331 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:41:42,373 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4bc5c54e-4ca9-448d-9f82-6ea14293e4c4/bin/ukojak/witness.graphml [2020-11-28 04:41:42,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:41:42,375 INFO L168 Benchmark]: Toolchain (without parser) took 2332.36 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 48.8 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:42,376 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 77.6 MB. Free memory was 50.2 MB in the beginning and 50.1 MB in the end (delta: 28.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:42,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.63 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 73.2 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:42,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.81 ms. Allocated memory is still 94.4 MB. Free memory was 73.2 MB in the beginning and 71.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:42,378 INFO L168 Benchmark]: Boogie Preprocessor took 24.15 ms. Allocated memory is still 94.4 MB. Free memory was 71.5 MB in the beginning and 70.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:42,379 INFO L168 Benchmark]: RCFGBuilder took 583.33 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 53.0 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:42,379 INFO L168 Benchmark]: CodeCheck took 1369.09 ms. Allocated memory is still 94.4 MB. Free memory was 52.6 MB in the beginning and 51.7 MB in the end (delta: 916.5 kB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:42,380 INFO L168 Benchmark]: Witness Printer took 63.50 ms. Allocated memory is still 94.4 MB. Free memory was 51.7 MB in the beginning and 48.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:42,383 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, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 60 SDslu, 0 SDs, 0 SdLazy, 284 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 141 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 213 SizeOfPredicates, 6 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 14 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 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: 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: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 77.6 MB. Free memory was 50.2 MB in the beginning and 50.1 MB in the end (delta: 28.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 248.63 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 73.2 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.81 ms. Allocated memory is still 94.4 MB. Free memory was 73.2 MB in the beginning and 71.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.15 ms. Allocated memory is still 94.4 MB. Free memory was 71.5 MB in the beginning and 70.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 583.33 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 53.0 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 1369.09 ms. Allocated memory is still 94.4 MB. Free memory was 52.6 MB in the beginning and 51.7 MB in the end (delta: 916.5 kB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. * Witness Printer took 63.50 ms. Allocated memory is still 94.4 MB. Free memory was 51.7 MB in the beginning and 48.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...