./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test13.c -s /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d930d0c776a0ac320af8907c2de478e8a45f500e .................................................................................................................................................................................................................. 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 17:34:27,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:34:27,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:34:27,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:34:27,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:34:27,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:34:27,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:34:27,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:34:27,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:34:27,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:34:27,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:34:27,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:34:27,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:34:27,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:34:27,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:34:27,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:34:27,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:34:27,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:34:27,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:34:27,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:34:27,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:34:27,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:34:27,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:34:27,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:34:27,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:34:27,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:34:27,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:34:27,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:34:27,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:34:27,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:34:27,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:34:27,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:34:27,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:34:27,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:34:27,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:34:27,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:34:27,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:34:27,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:34:27,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:34:27,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:34:27,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:34:27,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:34:27,981 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:34:27,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:34:27,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:34:27,984 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:34:27,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:34:27,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:34:27,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:34:27,986 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:34:27,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:34:27,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:34:27,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:34:27,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:34:27,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:34:27,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:34:27,990 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:34:27,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:34:27,990 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:34:27,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:34:27,991 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:34:27,991 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:34:27,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:34:27,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:34:27,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:34:27,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:34:27,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:34:27,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:34:27,993 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:34:27,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:34:27,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:34:27,994 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_86b2e6ce-8ed7-43ba-af16-036017f6d527/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d930d0c776a0ac320af8907c2de478e8a45f500e [2020-12-01 17:34:28,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:34:28,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:34:28,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:34:28,500 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:34:28,504 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:34:28,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test13.c [2020-12-01 17:34:28,627 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/data/a48ff806c/3740de2edafe4bcd8c1181db5727c336/FLAG09077712e [2020-12-01 17:34:29,436 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:34:29,438 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/sv-benchmarks/c/ldv-regression/test13.c [2020-12-01 17:34:29,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/data/a48ff806c/3740de2edafe4bcd8c1181db5727c336/FLAG09077712e [2020-12-01 17:34:29,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/data/a48ff806c/3740de2edafe4bcd8c1181db5727c336 [2020-12-01 17:34:29,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:34:29,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:34:29,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:34:29,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:34:29,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:34:29,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:34:29" (1/1) ... [2020-12-01 17:34:29,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41dce892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:29, skipping insertion in model container [2020-12-01 17:34:29,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:34:29" (1/1) ... [2020-12-01 17:34:29,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:34:29,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:34:30,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:34:30,116 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:34:30,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:34:30,171 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:34:30,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30 WrapperNode [2020-12-01 17:34:30,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:34:30,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:34:30,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:34:30,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:34:30,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30" (1/1) ... [2020-12-01 17:34:30,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30" (1/1) ... [2020-12-01 17:34:30,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:34:30,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:34:30,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:34:30,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:34:30,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30" (1/1) ... [2020-12-01 17:34:30,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30" (1/1) ... [2020-12-01 17:34:30,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30" (1/1) ... [2020-12-01 17:34:30,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30" (1/1) ... [2020-12-01 17:34:30,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30" (1/1) ... [2020-12-01 17:34:30,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30" (1/1) ... [2020-12-01 17:34:30,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30" (1/1) ... [2020-12-01 17:34:30,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:34:30,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:34:30,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:34:30,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:34:30,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:34:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/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 17:34:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:34:30,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:34:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:34:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:34:30,962 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:34:30,963 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 17:34:30,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:34:30 BoogieIcfgContainer [2020-12-01 17:34:30,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:34:30,969 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:34:30,969 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:34:30,987 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:34:30,988 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:34:30" (1/1) ... [2020-12-01 17:34:31,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:34:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:31,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-12-01 17:34:31,124 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-12-01 17:34:31,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 17:34:31,140 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:31,486 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 17:34:31,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2020-12-01 17:34:31,560 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2020-12-01 17:34:31,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:34:31,561 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2020-12-01 17:34:31,570 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 17:34:31,589 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:34:31,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:34:31 ImpRootNode [2020-12-01 17:34:31,595 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:34:31,599 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:34:31,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:34:31,600 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:34:31,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:34:30" (3/4) ... [2020-12-01 17:34:31,615 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:34:31,635 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-01 17:34:31,636 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 17:34:31,636 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 17:34:31,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:34:31,714 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_86b2e6ce-8ed7-43ba-af16-036017f6d527/bin/ukojak/witness.graphml [2020-12-01 17:34:31,714 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:34:31,722 INFO L168 Benchmark]: Toolchain (without parser) took 1925.25 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 57.1 MB in the beginning and 57.1 MB in the end (delta: 22.5 kB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-12-01 17:34:31,724 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 86.0 MB. Free memory is still 43.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:34:31,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.56 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 56.9 MB in the beginning and 90.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:34:31,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.80 ms. Allocated memory is still 111.1 MB. Free memory was 90.4 MB in the beginning and 88.6 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:34:31,736 INFO L168 Benchmark]: Boogie Preprocessor took 54.18 ms. Allocated memory is still 111.1 MB. Free memory was 88.6 MB in the beginning and 87.7 MB in the end (delta: 920.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:34:31,738 INFO L168 Benchmark]: RCFGBuilder took 667.12 ms. Allocated memory is still 111.1 MB. Free memory was 87.7 MB in the beginning and 73.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 17:34:31,739 INFO L168 Benchmark]: CodeCheck took 626.50 ms. Allocated memory is still 111.1 MB. Free memory was 73.6 MB in the beginning and 59.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:34:31,741 INFO L168 Benchmark]: Witness Printer took 115.55 ms. Allocated memory is still 111.1 MB. Free memory was 59.2 MB in the beginning and 57.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:34:31,754 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, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 ms. Allocated memory is still 86.0 MB. Free memory is still 43.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.56 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 56.9 MB in the beginning and 90.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.80 ms. Allocated memory is still 111.1 MB. Free memory was 90.4 MB in the beginning and 88.6 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.18 ms. Allocated memory is still 111.1 MB. Free memory was 88.6 MB in the beginning and 87.7 MB in the end (delta: 920.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 667.12 ms. Allocated memory is still 111.1 MB. Free memory was 87.7 MB in the beginning and 73.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 626.50 ms. Allocated memory is still 111.1 MB. Free memory was 73.6 MB in the beginning and 59.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 115.55 ms. Allocated memory is still 111.1 MB. Free memory was 59.2 MB in the beginning and 57.1 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...