./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Velroyen.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Velroyen.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/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 ec006770ad5cd0a3c7db0bdcdc2e13af7e5cceb3 ....................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:45:10,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:45:10,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:45:10,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:45:10,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:45:10,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:45:10,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:45:10,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:45:10,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:45:10,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:45:10,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:45:10,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:45:10,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:45:10,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:45:10,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:45:10,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:45:10,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:45:10,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:45:10,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:45:10,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:45:10,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:45:10,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:45:10,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:45:10,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:45:10,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:45:10,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:45:10,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:45:10,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:45:10,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:45:10,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:45:10,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:45:10,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:45:10,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:45:10,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:45:10,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:45:10,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:45:10,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:45:10,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:45:10,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:45:10,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:45:10,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:45:10,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:45:10,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:45:10,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:45:10,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:45:10,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:45:10,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:45:10,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:45:10,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:45:10,814 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:45:10,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:45:10,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:45:10,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:45:10,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:45:10,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:45:10,815 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:45:10,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:45:10,816 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:45:10,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:45:10,816 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:45:10,816 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:45:10,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:45:10,817 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:45:10,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:45:10,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:45:10,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:45:10,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:45:10,818 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:45:10,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:45:10,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:45:10,818 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_d77d7925-ea85-4c79-ad79-f05efcbf55d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec006770ad5cd0a3c7db0bdcdc2e13af7e5cceb3 [2020-11-28 04:45:11,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:45:11,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:45:11,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:45:11,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:45:11,157 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:45:11,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/Velroyen.c [2020-11-28 04:45:11,278 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/data/8660bacd7/0e8189259686421aa55d67e2e9e6640a/FLAG89e1e4e73 [2020-11-28 04:45:11,730 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:45:11,730 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/sv-benchmarks/c/termination-crafted-lit/Velroyen.c [2020-11-28 04:45:11,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/data/8660bacd7/0e8189259686421aa55d67e2e9e6640a/FLAG89e1e4e73 [2020-11-28 04:45:12,142 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/data/8660bacd7/0e8189259686421aa55d67e2e9e6640a [2020-11-28 04:45:12,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:45:12,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:45:12,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:45:12,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:45:12,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:45:12,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ada1583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12, skipping insertion in model container [2020-11-28 04:45:12,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:45:12,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:45:12,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:45:12,353 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:45:12,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:45:12,389 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:45:12,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12 WrapperNode [2020-11-28 04:45:12,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:45:12,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:45:12,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:45:12,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:45:12,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:45:12,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:45:12,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:45:12,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:45:12,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:45:12,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:45:12,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:45:12,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:45:12,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:45:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:45:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:45:12,780 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:45:12,781 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:45:12,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:12 BoogieIcfgContainer [2020-11-28 04:45:12,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:45:12,784 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:45:12,784 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:45:12,805 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:45:12,806 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:12" (1/1) ... [2020-11-28 04:45:12,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:45:12,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:45:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-11-28 04:45:12,910 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-11-28 04:45:12,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:45:12,913 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:45:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:45:13,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:45:13,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:45:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2020-11-28 04:45:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2020-11-28 04:45:13,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:45:13,207 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:45:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:45:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:45:13,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:45:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 8 states and 11 transitions. [2020-11-28 04:45:13,353 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2020-11-28 04:45:13,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:45:13,354 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2020-11-28 04:45:13,360 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2020-11-28 04:45:13,393 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:45:13,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:45:13 ImpRootNode [2020-11-28 04:45:13,398 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:45:13,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:45:13,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:45:13,399 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:45:13,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:12" (3/4) ... [2020-11-28 04:45:13,404 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:45:13,419 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:45:13,419 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:45:13,420 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:45:13,460 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d77d7925-ea85-4c79-ad79-f05efcbf55d3/bin/ukojak/witness.graphml [2020-11-28 04:45:13,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:45:13,462 INFO L168 Benchmark]: Toolchain (without parser) took 1313.62 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 51.2 MB in the beginning and 41.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:13,462 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 52.3 MB in the beginning and 52.3 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:45:13,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.02 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 79.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:13,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.94 ms. Allocated memory is still 100.7 MB. Free memory was 79.5 MB in the beginning and 78.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:45:13,464 INFO L168 Benchmark]: Boogie Preprocessor took 33.84 ms. Allocated memory is still 100.7 MB. Free memory was 78.3 MB in the beginning and 77.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:13,465 INFO L168 Benchmark]: RCFGBuilder took 318.26 ms. Allocated memory is still 100.7 MB. Free memory was 77.3 MB in the beginning and 67.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:13,466 INFO L168 Benchmark]: CodeCheck took 613.78 ms. Allocated memory is still 100.7 MB. Free memory was 66.8 MB in the beginning and 43.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:13,466 INFO L168 Benchmark]: Witness Printer took 61.19 ms. Allocated memory is still 100.7 MB. Free memory was 43.2 MB in the beginning and 41.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:45:13,470 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, 10 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 18 SDslu, 0 SDs, 0 SdLazy, 62 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 22]: 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 2 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 52.3 MB in the beginning and 52.3 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 232.02 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 79.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.94 ms. Allocated memory is still 100.7 MB. Free memory was 79.5 MB in the beginning and 78.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.84 ms. Allocated memory is still 100.7 MB. Free memory was 78.3 MB in the beginning and 77.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 318.26 ms. Allocated memory is still 100.7 MB. Free memory was 77.3 MB in the beginning and 67.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 613.78 ms. Allocated memory is still 100.7 MB. Free memory was 66.8 MB in the beginning and 43.2 MB in the end (delta: 23.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 61.19 ms. Allocated memory is still 100.7 MB. Free memory was 43.2 MB in the beginning and 41.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...