./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.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_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/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 f9de9875f09e594325a645528f016ce12ac5c646 .............................................................................................................................................................................................................................................................................................. 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 04:39:45,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:39:45,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:39:45,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:39:45,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:39:45,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:39:45,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:39:45,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:39:45,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:39:45,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:39:45,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:39:45,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:39:45,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:39:45,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:39:45,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:39:45,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:39:45,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:39:45,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:39:45,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:39:45,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:39:45,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:39:45,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:39:45,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:39:45,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:39:45,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:39:45,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:39:45,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:39:45,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:39:45,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:39:45,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:39:45,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:39:45,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:39:45,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:39:45,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:39:45,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:39:45,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:39:45,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:39:45,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:39:45,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:39:45,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:39:45,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:39:45,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:39:45,570 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:39:45,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:39:45,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:39:45,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:39:45,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:39:45,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:39:45,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:39:45,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:39:45,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:39:45,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:39:45,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:39:45,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:39:45,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:39:45,576 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:39:45,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:39:45,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:39:45,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:39:45,577 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:39:45,577 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:39:45,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:39:45,578 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:39:45,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:39:45,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:39:45,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:39:45,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:39:45,579 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:39:45,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:39:45,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:39:45,579 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_e9f4c098-e39f-4853-92f8-c109566c3b5f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9de9875f09e594325a645528f016ce12ac5c646 [2020-11-28 04:39:45,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:39:45,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:39:45,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:39:45,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:39:45,894 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:39:45,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2020-11-28 04:39:45,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/data/efabd54f2/44031dd8526b4274b917a5a4b7c26bd1/FLAGeb7683359 [2020-11-28 04:39:46,411 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:39:46,411 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2020-11-28 04:39:46,422 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/data/efabd54f2/44031dd8526b4274b917a5a4b7c26bd1/FLAGeb7683359 [2020-11-28 04:39:46,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/data/efabd54f2/44031dd8526b4274b917a5a4b7c26bd1 [2020-11-28 04:39:46,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:39:46,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:39:46,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:46,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:39:46,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:39:46,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:46" (1/1) ... [2020-11-28 04:39:46,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d484178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:46, skipping insertion in model container [2020-11-28 04:39:46,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:46" (1/1) ... [2020-11-28 04:39:46,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:39:46,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:39:46,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:46,997 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:39:47,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:47,049 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:39:47,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47 WrapperNode [2020-11-28 04:39:47,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:47,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:47,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:39:47,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:39:47,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47" (1/1) ... [2020-11-28 04:39:47,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47" (1/1) ... [2020-11-28 04:39:47,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:47,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:39:47,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:39:47,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:39:47,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47" (1/1) ... [2020-11-28 04:39:47,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47" (1/1) ... [2020-11-28 04:39:47,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47" (1/1) ... [2020-11-28 04:39:47,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47" (1/1) ... [2020-11-28 04:39:47,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47" (1/1) ... [2020-11-28 04:39:47,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47" (1/1) ... [2020-11-28 04:39:47,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47" (1/1) ... [2020-11-28 04:39:47,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:39:47,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:39:47,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:39:47,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:39:47,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/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 04:39:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:39:47,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:39:47,586 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:39:47,586 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:39:47,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:47 BoogieIcfgContainer [2020-11-28 04:39:47,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:39:47,589 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:39:47,589 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:39:47,601 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:39:47,601 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:47" (1/1) ... [2020-11-28 04:39:47,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:39:47,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:47,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-11-28 04:39:47,661 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-28 04:39:47,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:39:47,663 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:47,831 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 04:39:47,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-11-28 04:39:47,908 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-11-28 04:39:47,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:39:47,909 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:47,938 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 04:39:48,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:48,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2020-11-28 04:39:48,093 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2020-11-28 04:39:48,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:39:48,096 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:48,153 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 04:39:48,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:48,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2020-11-28 04:39:48,510 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2020-11-28 04:39:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:39:48,511 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:48,558 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 04:39:48,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:48,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2020-11-28 04:39:48,782 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2020-11-28 04:39:48,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:39:48,783 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:48,836 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 04:39:49,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:49,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 31 states and 50 transitions. [2020-11-28 04:39:49,446 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2020-11-28 04:39:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:39:49,447 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:49,542 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 04:39:50,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:50,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 35 states and 59 transitions. [2020-11-28 04:39:50,151 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2020-11-28 04:39:50,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:50,152 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:39:50,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 61 transitions. [2020-11-28 04:39:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 61 transitions. [2020-11-28 04:39:50,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:50,452 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:50,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:50,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 37 states and 60 transitions. [2020-11-28 04:39:50,646 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2020-11-28 04:39:50,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:39:50,646 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:51,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 40 states and 66 transitions. [2020-11-28 04:39:51,179 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-11-28 04:39:51,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:39:51,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:51,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:51,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 41 states and 67 transitions. [2020-11-28 04:39:51,632 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 67 transitions. [2020-11-28 04:39:51,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:39:51,632 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:51,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:51,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2020-11-28 04:39:51,876 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-11-28 04:39:51,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:39:51,876 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2020-11-28 04:39:51,882 INFO L765 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2020-11-28 04:39:51,953 INFO L569 CodeCheckObserver]: Invariant with dag size 8 [2020-11-28 04:39:51,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:39:51 ImpRootNode [2020-11-28 04:39:51,963 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:39:51,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:39:51,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:39:51,964 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:39:51,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:47" (3/4) ... [2020-11-28 04:39:51,967 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:39:51,976 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:39:51,976 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:39:51,977 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:39:52,022 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e9f4c098-e39f-4853-92f8-c109566c3b5f/bin/ukojak/witness.graphml [2020-11-28 04:39:52,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:39:52,024 INFO L168 Benchmark]: Toolchain (without parser) took 5225.05 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 96.9 MB in the beginning and 113.4 MB in the end (delta: -16.4 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:52,025 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 75.5 MB. Free memory was 32.4 MB in the beginning and 32.3 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:52,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.66 ms. Allocated memory is still 130.0 MB. Free memory was 96.7 MB in the beginning and 107.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:52,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.84 ms. Allocated memory is still 130.0 MB. Free memory was 107.1 MB in the beginning and 105.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:52,027 INFO L168 Benchmark]: Boogie Preprocessor took 31.09 ms. Allocated memory is still 130.0 MB. Free memory was 105.6 MB in the beginning and 105.0 MB in the end (delta: 590.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:52,027 INFO L168 Benchmark]: RCFGBuilder took 466.38 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 93.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:52,028 INFO L168 Benchmark]: CodeCheck took 4373.46 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 93.1 MB in the beginning and 115.4 MB in the end (delta: -22.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:52,029 INFO L168 Benchmark]: Witness Printer took 59.34 ms. Allocated memory is still 157.3 MB. Free memory was 115.4 MB in the beginning and 113.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:52,032 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 16 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6144 SDtfs, 13534 SDslu, 23072 SDs, 0 SdLazy, 35832 SolverSat, 7218 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 803 GetRequests, 676 SyntacticMatches, 19 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5604 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 15/15 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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: 26]: 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && d <= 2147483647) && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 75.5 MB. Free memory was 32.4 MB in the beginning and 32.3 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.66 ms. Allocated memory is still 130.0 MB. Free memory was 96.7 MB in the beginning and 107.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.84 ms. Allocated memory is still 130.0 MB. Free memory was 107.1 MB in the beginning and 105.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.09 ms. Allocated memory is still 130.0 MB. Free memory was 105.6 MB in the beginning and 105.0 MB in the end (delta: 590.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 466.38 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 93.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 4373.46 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 93.1 MB in the beginning and 115.4 MB in the end (delta: -22.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 59.34 ms. Allocated memory is still 157.3 MB. Free memory was 115.4 MB in the beginning and 113.4 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...