./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.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_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/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 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-03 10:59:51,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 10:59:51,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 10:59:51,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 10:59:51,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 10:59:51,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 10:59:51,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 10:59:51,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 10:59:51,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 10:59:51,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 10:59:51,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 10:59:51,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 10:59:51,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 10:59:51,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 10:59:51,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 10:59:51,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 10:59:51,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 10:59:51,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 10:59:51,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 10:59:51,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 10:59:51,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 10:59:51,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 10:59:51,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 10:59:51,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 10:59:51,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 10:59:51,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 10:59:51,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 10:59:51,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 10:59:51,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 10:59:51,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 10:59:51,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 10:59:51,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 10:59:51,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 10:59:51,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 10:59:51,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 10:59:51,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 10:59:51,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 10:59:51,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 10:59:51,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 10:59:51,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 10:59:51,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 10:59:51,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-03 10:59:51,711 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 10:59:51,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 10:59:51,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 10:59:51,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 10:59:51,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 10:59:51,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 10:59:51,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 10:59:51,714 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 10:59:51,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 10:59:51,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 10:59:51,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 10:59:51,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 10:59:51,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 10:59:51,716 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 10:59:51,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 10:59:51,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 10:59:51,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 10:59:51,717 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 10:59:51,717 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 10:59:51,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 10:59:51,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 10:59:51,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 10:59:51,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 10:59:51,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 10:59:51,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 10:59:51,719 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 10:59:51,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 10:59:51,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 10:59:51,719 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_bbad396f-12dd-4a57-888b-841e74c433c7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2020-12-03 10:59:51,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 10:59:52,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 10:59:52,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 10:59:52,029 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 10:59:52,030 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 10:59:52,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-12-03 10:59:52,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/data/8a1de5edf/0e7c8c798942406f872e9a1991cec991/FLAGe4c4e1d57 [2020-12-03 10:59:52,547 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 10:59:52,547 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-12-03 10:59:52,553 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/data/8a1de5edf/0e7c8c798942406f872e9a1991cec991/FLAGe4c4e1d57 [2020-12-03 10:59:52,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/data/8a1de5edf/0e7c8c798942406f872e9a1991cec991 [2020-12-03 10:59:52,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 10:59:52,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 10:59:52,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 10:59:52,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 10:59:52,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 10:59:52,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 10:59:52" (1/1) ... [2020-12-03 10:59:52,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499725eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:52, skipping insertion in model container [2020-12-03 10:59:52,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 10:59:52" (1/1) ... [2020-12-03 10:59:52,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 10:59:52,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 10:59:53,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 10:59:53,152 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 10:59:53,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 10:59:53,188 INFO L208 MainTranslator]: Completed translation [2020-12-03 10:59:53,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53 WrapperNode [2020-12-03 10:59:53,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 10:59:53,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 10:59:53,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 10:59:53,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 10:59:53,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53" (1/1) ... [2020-12-03 10:59:53,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53" (1/1) ... [2020-12-03 10:59:53,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 10:59:53,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 10:59:53,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 10:59:53,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 10:59:53,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53" (1/1) ... [2020-12-03 10:59:53,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53" (1/1) ... [2020-12-03 10:59:53,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53" (1/1) ... [2020-12-03 10:59:53,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53" (1/1) ... [2020-12-03 10:59:53,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53" (1/1) ... [2020-12-03 10:59:53,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53" (1/1) ... [2020-12-03 10:59:53,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53" (1/1) ... [2020-12-03 10:59:53,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 10:59:53,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 10:59:53,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 10:59:53,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 10:59:53,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 10:59:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/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 [2020-12-03 10:59:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 10:59:53,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 10:59:53,521 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 10:59:53,522 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-03 10:59:53,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 10:59:53 BoogieIcfgContainer [2020-12-03 10:59:53,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 10:59:53,525 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 10:59:53,525 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 10:59:53,533 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 10:59:53,533 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 10:59:53" (1/1) ... [2020-12-03 10:59:53,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 10:59:53,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-12-03 10:59:53,573 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-12-03 10:59:53,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 10:59:53,575 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 10:59:53,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:53,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2020-12-03 10:59:53,807 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2020-12-03 10:59:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 10:59:53,807 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:53,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 10:59:53,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:53,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2020-12-03 10:59:53,913 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2020-12-03 10:59:53,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 10:59:53,913 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:53,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 10:59:54,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:54,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2020-12-03 10:59:54,191 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2020-12-03 10:59:54,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 10:59:54,194 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:54,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 10:59:54,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:54,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2020-12-03 10:59:54,427 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2020-12-03 10:59:54,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 10:59:54,428 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:54,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 10:59:54,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:54,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2020-12-03 10:59:54,811 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-12-03 10:59:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-03 10:59:54,811 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-03 10:59:55,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:55,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 31 states and 42 transitions. [2020-12-03 10:59:55,275 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-12-03 10:59:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-03 10:59:55,276 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 10:59:55,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:55,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 34 states and 49 transitions. [2020-12-03 10:59:55,588 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2020-12-03 10:59:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-03 10:59:55,589 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:55,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 10:59:55,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:55,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 35 states and 50 transitions. [2020-12-03 10:59:55,707 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2020-12-03 10:59:55,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 10:59:55,708 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:55,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-03 10:59:55,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:55,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 36 states and 52 transitions. [2020-12-03 10:59:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2020-12-03 10:59:55,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 10:59:55,971 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-03 10:59:56,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:56,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2020-12-03 10:59:56,200 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2020-12-03 10:59:56,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 10:59:56,201 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-03 10:59:56,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:56,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 40 states and 57 transitions. [2020-12-03 10:59:56,478 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 57 transitions. [2020-12-03 10:59:56,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 10:59:56,479 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-03 10:59:56,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:56,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 41 states and 59 transitions. [2020-12-03 10:59:56,776 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2020-12-03 10:59:56,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-03 10:59:56,777 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:56,794 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-03 10:59:56,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:56,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2020-12-03 10:59:56,937 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-12-03 10:59:56,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 10:59:56,941 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 10:59:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 10:59:56,962 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-03 10:59:57,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 10:59:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-12-03 10:59:57,111 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-12-03 10:59:57,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 10:59:57,112 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 15 iterations. [2020-12-03 10:59:57,118 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-03 10:59:57,257 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-03 10:59:57,264 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-03 10:59:57,265 INFO L569 CodeCheckObserver]: Invariant with dag size 13 [2020-12-03 10:59:57,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 10:59:57 ImpRootNode [2020-12-03 10:59:57,266 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 10:59:57,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 10:59:57,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 10:59:57,267 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 10:59:57,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 10:59:53" (3/4) ... [2020-12-03 10:59:57,270 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 10:59:57,279 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-03 10:59:57,279 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-03 10:59:57,280 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 10:59:57,321 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bbad396f-12dd-4a57-888b-841e74c433c7/bin/ukojak/witness.graphml [2020-12-03 10:59:57,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 10:59:57,323 INFO L168 Benchmark]: Toolchain (without parser) took 4360.19 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 58.0 MB in the beginning and 32.9 MB in the end (delta: 25.1 MB). Peak memory consumption was 47.0 MB. Max. memory is 16.1 GB. [2020-12-03 10:59:57,323 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 10:59:57,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.92 ms. Allocated memory is still 86.0 MB. Free memory was 57.8 MB in the beginning and 64.0 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 10:59:57,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.16 ms. Allocated memory is still 86.0 MB. Free memory was 64.0 MB in the beginning and 62.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 10:59:57,325 INFO L168 Benchmark]: Boogie Preprocessor took 34.04 ms. Allocated memory is still 86.0 MB. Free memory was 62.6 MB in the beginning and 61.7 MB in the end (delta: 848.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 10:59:57,326 INFO L168 Benchmark]: RCFGBuilder took 255.85 ms. Allocated memory is still 86.0 MB. Free memory was 61.7 MB in the beginning and 51.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 10:59:57,326 INFO L168 Benchmark]: CodeCheck took 3741.66 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 50.8 MB in the beginning and 35.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2020-12-03 10:59:57,327 INFO L168 Benchmark]: Witness Printer took 54.15 ms. Allocated memory is still 107.0 MB. Free memory was 35.1 MB in the beginning and 32.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 10:59:57,330 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: 3.5s, OverallIterations: 15, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24576 SDtfs, 76130 SDslu, 0 SDs, 0 SdLazy, 385178 SolverSat, 94024 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1134 GetRequests, 972 SyntacticMatches, 68 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3740 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 3311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 44/48 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: 23]: 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: 23]: 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: x <= 1073741823 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((x <= y && x <= 1073741823) && 0 <= x) || ((1 <= y && x <= 1073741823) && y < x) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 227.92 ms. Allocated memory is still 86.0 MB. Free memory was 57.8 MB in the beginning and 64.0 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.16 ms. Allocated memory is still 86.0 MB. Free memory was 64.0 MB in the beginning and 62.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.04 ms. Allocated memory is still 86.0 MB. Free memory was 62.6 MB in the beginning and 61.7 MB in the end (delta: 848.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 255.85 ms. Allocated memory is still 86.0 MB. Free memory was 61.7 MB in the beginning and 51.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 3741.66 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 50.8 MB in the beginning and 35.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. * Witness Printer took 54.15 ms. Allocated memory is still 107.0 MB. Free memory was 35.1 MB in the beginning and 32.9 MB in the end (delta: 2.2 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...