./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/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 0.2.0-69874e2 [2020-12-01 16:52:40,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:52:40,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:52:40,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:52:40,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:52:40,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:52:40,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:52:40,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:52:40,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:52:40,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:52:40,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:52:40,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:52:40,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:52:40,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:52:40,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:52:40,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:52:40,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:52:40,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:52:40,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:52:40,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:52:40,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:52:40,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:52:40,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:52:40,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:52:40,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:52:40,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:52:40,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:52:40,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:52:40,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:52:40,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:52:40,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:52:40,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:52:40,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:52:40,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:52:40,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:52:40,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:52:40,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:52:40,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:52:40,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:52:40,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:52:40,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:52:40,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 16:52:40,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:52:40,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:52:40,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:52:40,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:52:40,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:52:40,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:52:40,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:52:40,861 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:52:40,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:52:40,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:52:40,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:52:40,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:52:40,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:52:40,863 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:52:40,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:52:40,864 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:52:40,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:52:40,864 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:52:40,864 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:52:40,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:52:40,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:52:40,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:52:40,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:52:40,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:52:40,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:52:40,866 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:52:40,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:52:40,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:52:40,867 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_7829fade-2afc-4f3f-9e6f-6198ca0df41a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9de9875f09e594325a645528f016ce12ac5c646 [2020-12-01 16:52:41,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:52:41,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:52:41,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:52:41,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:52:41,204 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:52:41,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2020-12-01 16:52:41,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/data/8a9ca7018/b1a11cba242443bda8c1e74935249c4f/FLAG79df262de [2020-12-01 16:52:41,719 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:52:41,720 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2020-12-01 16:52:41,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/data/8a9ca7018/b1a11cba242443bda8c1e74935249c4f/FLAG79df262de [2020-12-01 16:52:42,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/data/8a9ca7018/b1a11cba242443bda8c1e74935249c4f [2020-12-01 16:52:42,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:52:42,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:52:42,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:52:42,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:52:42,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:52:42,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77be40e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42, skipping insertion in model container [2020-12-01 16:52:42,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:52:42,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:52:42,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:52:42,331 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:52:42,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:52:42,382 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:52:42,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42 WrapperNode [2020-12-01 16:52:42,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:52:42,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:52:42,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:52:42,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:52:42,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:52:42,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:52:42,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:52:42,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:52:42,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:52:42,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:52:42,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:52:42,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:52:42,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:52:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/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 16:52:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:52:42,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:52:42,721 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:52:42,721 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 16:52:42,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:52:42 BoogieIcfgContainer [2020-12-01 16:52:42,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:52:42,724 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:52:42,724 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:52:42,735 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:52:42,735 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:52:42" (1/1) ... [2020-12-01 16:52:42,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:52:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:42,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-12-01 16:52:42,778 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-01 16:52:42,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:52:42,780 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:42,992 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 16:52:43,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:43,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-12-01 16:52:43,074 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-01 16:52:43,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:52:43,075 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:43,105 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 16:52:43,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:43,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2020-12-01 16:52:43,222 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2020-12-01 16:52:43,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:52:43,225 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:43,282 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 16:52:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:43,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2020-12-01 16:52:43,442 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2020-12-01 16:52:43,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:52:43,443 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:43,519 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 16:52:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:43,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2020-12-01 16:52:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2020-12-01 16:52:43,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:52:43,683 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:43,755 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 16:52:44,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:44,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 31 states and 50 transitions. [2020-12-01 16:52:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2020-12-01 16:52:44,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:52:44,166 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:44,232 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 16:52:44,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:44,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 35 states and 59 transitions. [2020-12-01 16:52:44,777 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2020-12-01 16:52:44,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:52:44,778 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:52:45,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:45,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 61 transitions. [2020-12-01 16:52:45,066 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 61 transitions. [2020-12-01 16:52:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:52:45,067 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:52:45,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:45,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 37 states and 60 transitions. [2020-12-01 16:52:45,290 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2020-12-01 16:52:45,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:52:45,291 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:45,311 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 16:52:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:45,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 40 states and 66 transitions. [2020-12-01 16:52:45,862 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-12-01 16:52:45,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:52:45,863 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:45,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:52:46,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:46,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 41 states and 67 transitions. [2020-12-01 16:52:46,463 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 67 transitions. [2020-12-01 16:52:46,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:52:46,464 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:46,515 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:52:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:46,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2020-12-01 16:52:46,733 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-12-01 16:52:46,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:52:46,734 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2020-12-01 16:52:46,740 INFO L765 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2020-12-01 16:52:46,804 INFO L569 CodeCheckObserver]: Invariant with dag size 8 [2020-12-01 16:52:46,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:52:46 ImpRootNode [2020-12-01 16:52:46,812 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:52:46,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:52:46,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:52:46,813 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:52:46,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:52:42" (3/4) ... [2020-12-01 16:52:46,817 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:52:46,825 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 16:52:46,826 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 16:52:46,826 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:52:46,873 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7829fade-2afc-4f3f-9e6f-6198ca0df41a/bin/ukojak/witness.graphml [2020-12-01 16:52:46,874 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:52:46,876 INFO L168 Benchmark]: Toolchain (without parser) took 4729.17 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 64.3 MB in the beginning and 58.7 MB in the end (delta: 5.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:46,877 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 100.7 MB. Free memory is still 80.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:52:46,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.55 ms. Allocated memory is still 100.7 MB. Free memory was 64.1 MB in the beginning and 77.9 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:46,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.72 ms. Allocated memory is still 100.7 MB. Free memory was 77.9 MB in the beginning and 76.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:52:46,882 INFO L168 Benchmark]: Boogie Preprocessor took 36.94 ms. Allocated memory is still 100.7 MB. Free memory was 76.3 MB in the beginning and 75.6 MB in the end (delta: 713.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:52:46,883 INFO L168 Benchmark]: RCFGBuilder took 254.24 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 64.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:46,885 INFO L168 Benchmark]: CodeCheck took 4088.07 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 63.8 MB in the beginning and 61.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:46,885 INFO L168 Benchmark]: Witness Printer took 61.08 ms. Allocated memory is still 123.7 MB. Free memory was 61.8 MB in the beginning and 58.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:52:46,887 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: 3.9s, 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, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 803 GetRequests, 676 SyntacticMatches, 19 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5604 ImplicationChecksByTransitivity, 2.9s 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 0.39 ms. Allocated memory is still 100.7 MB. Free memory is still 80.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.55 ms. Allocated memory is still 100.7 MB. Free memory was 64.1 MB in the beginning and 77.9 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.72 ms. Allocated memory is still 100.7 MB. Free memory was 77.9 MB in the beginning and 76.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.94 ms. Allocated memory is still 100.7 MB. Free memory was 76.3 MB in the beginning and 75.6 MB in the end (delta: 713.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 254.24 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 64.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 4088.07 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 63.8 MB in the beginning and 61.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. * Witness Printer took 61.08 ms. Allocated memory is still 123.7 MB. Free memory was 61.8 MB in the beginning and 58.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...