./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/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 2b2cc94eb5b8374a9980482fd0dfec59d6d2cf62 ........................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:45:19,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:45:19,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:45:19,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:45:19,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:45:19,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:45:19,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:45:19,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:45:19,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:45:19,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:45:19,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:45:19,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:45:19,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:45:19,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:45:19,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:45:19,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:45:19,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:45:19,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:45:19,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:45:19,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:45:19,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:45:19,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:45:19,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:45:19,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:45:19,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:45:19,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:45:19,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:45:19,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:45:19,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:45:19,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:45:19,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:45:19,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:45:19,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:45:19,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:45:19,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:45:19,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:45:19,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:45:19,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:45:19,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:45:19,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:45:19,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:45:19,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 16:45:19,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:45:19,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:45:19,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:45:19,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:45:19,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:45:19,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:45:19,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:45:19,668 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:45:19,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:45:19,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:45:19,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:45:19,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:45:19,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:45:19,669 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:45:19,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:45:19,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:45:19,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:45:19,670 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:45:19,670 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:45:19,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:45:19,671 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:45:19,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:45:19,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:45:19,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:45:19,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:45:19,672 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:45:19,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:45:19,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:45:19,673 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_2edefc22-9c20-456e-bded-43a4c14c1546/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b2cc94eb5b8374a9980482fd0dfec59d6d2cf62 [2020-12-01 16:45:19,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:45:19,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:45:19,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:45:19,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:45:19,981 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:45:19,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c [2020-12-01 16:45:20,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/data/c4d2a0c66/d40143f3489e4e97b49ca5983758d8f8/FLAGb65d31618 [2020-12-01 16:45:20,563 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:45:20,563 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c [2020-12-01 16:45:20,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/data/c4d2a0c66/d40143f3489e4e97b49ca5983758d8f8/FLAGb65d31618 [2020-12-01 16:45:20,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/data/c4d2a0c66/d40143f3489e4e97b49ca5983758d8f8 [2020-12-01 16:45:20,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:45:20,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:45:20,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:45:20,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:45:20,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:45:20,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:45:20" (1/1) ... [2020-12-01 16:45:20,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc540fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:20, skipping insertion in model container [2020-12-01 16:45:20,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:45:20" (1/1) ... [2020-12-01 16:45:20,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:45:20,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:45:21,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:45:21,231 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:45:21,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:45:21,282 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:45:21,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21 WrapperNode [2020-12-01 16:45:21,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:45:21,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:45:21,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:45:21,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:45:21,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21" (1/1) ... [2020-12-01 16:45:21,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21" (1/1) ... [2020-12-01 16:45:21,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:45:21,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:45:21,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:45:21,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:45:21,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21" (1/1) ... [2020-12-01 16:45:21,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21" (1/1) ... [2020-12-01 16:45:21,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21" (1/1) ... [2020-12-01 16:45:21,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21" (1/1) ... [2020-12-01 16:45:21,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21" (1/1) ... [2020-12-01 16:45:21,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21" (1/1) ... [2020-12-01 16:45:21,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21" (1/1) ... [2020-12-01 16:45:21,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:45:21,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:45:21,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:45:21,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:45:21,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:45:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:45:21,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:45:21,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:45:21,838 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:45:21,838 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 16:45:21,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:45:21 BoogieIcfgContainer [2020-12-01 16:45:21,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:45:21,842 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:45:21,843 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:45:21,872 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:45:21,872 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:45:21" (1/1) ... [2020-12-01 16:45:21,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:45:21,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-01 16:45:21,978 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-01 16:45:21,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:45:21,980 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:22,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:45:22,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-01 16:45:22,210 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-01 16:45:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:45:22,211 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:22,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:45:22,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:22,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-12-01 16:45:22,334 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-12-01 16:45:22,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:45:22,337 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:22,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:45:22,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:22,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2020-12-01 16:45:22,392 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-12-01 16:45:22,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:45:22,392 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:22,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:45:22,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2020-12-01 16:45:22,450 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-12-01 16:45:22,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:45:22,451 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:22,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:45:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:22,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2020-12-01 16:45:22,571 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-12-01 16:45:22,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:45:22,571 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:22,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:45:22,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:22,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2020-12-01 16:45:22,723 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-12-01 16:45:22,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:45:22,724 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 16:45:23,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:23,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2020-12-01 16:45:23,341 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-12-01 16:45:23,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:45:23,342 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:45:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:45:23,449 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 16:45:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:45:24,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-01 16:45:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-01 16:45:24,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:45:24,243 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-12-01 16:45:24,250 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-01 16:45:24,347 INFO L569 CodeCheckObserver]: Invariant with dag size 5 [2020-12-01 16:45:24,364 INFO L569 CodeCheckObserver]: Invariant with dag size 11 [2020-12-01 16:45:24,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:45:24 ImpRootNode [2020-12-01 16:45:24,366 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:45:24,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:45:24,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:45:24,367 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:45:24,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:45:21" (3/4) ... [2020-12-01 16:45:24,373 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:45:24,398 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 16:45:24,399 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 16:45:24,399 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:45:24,474 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2edefc22-9c20-456e-bded-43a4c14c1546/bin/ukojak/witness.graphml [2020-12-01 16:45:24,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:45:24,480 INFO L168 Benchmark]: Toolchain (without parser) took 3547.57 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 71.7 MB in the beginning and 99.2 MB in the end (delta: -27.5 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:24,481 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 40.1 MB in the beginning and 40.0 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:45:24,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.06 ms. Allocated memory is still 100.7 MB. Free memory was 71.7 MB in the beginning and 79.8 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:24,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.15 ms. Allocated memory is still 100.7 MB. Free memory was 79.8 MB in the beginning and 78.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:45:24,483 INFO L168 Benchmark]: Boogie Preprocessor took 30.81 ms. Allocated memory is still 100.7 MB. Free memory was 78.6 MB in the beginning and 78.0 MB in the end (delta: 620.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:45:24,483 INFO L168 Benchmark]: RCFGBuilder took 476.47 ms. Allocated memory is still 100.7 MB. Free memory was 77.7 MB in the beginning and 66.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:24,484 INFO L168 Benchmark]: CodeCheck took 2523.84 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 66.6 MB in the beginning and 44.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:24,484 INFO L168 Benchmark]: Witness Printer took 110.75 ms. Allocated memory is still 121.6 MB. Free memory was 44.3 MB in the beginning and 99.2 MB in the end (delta: -54.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:45:24,493 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: 2.3s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 768 SDtfs, 746 SDslu, 0 SDs, 0 SdLazy, 3518 SolverSat, 1032 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 446 GetRequests, 385 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 15/16 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: 24]: 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: 24]: 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 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 <= x1 + 2147483648 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (0 <= x1 + 2147483648 && x1 <= 10) && x2 <= 1000 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 40.1 MB in the beginning and 40.0 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 349.06 ms. Allocated memory is still 100.7 MB. Free memory was 71.7 MB in the beginning and 79.8 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.15 ms. Allocated memory is still 100.7 MB. Free memory was 79.8 MB in the beginning and 78.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.81 ms. Allocated memory is still 100.7 MB. Free memory was 78.6 MB in the beginning and 78.0 MB in the end (delta: 620.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 476.47 ms. Allocated memory is still 100.7 MB. Free memory was 77.7 MB in the beginning and 66.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 2523.84 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 66.6 MB in the beginning and 44.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. * Witness Printer took 110.75 ms. Allocated memory is still 121.6 MB. Free memory was 44.3 MB in the beginning and 99.2 MB in the end (delta: -54.9 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...