./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test28-2.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_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test28-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/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 1e116c6e12c8b7e2ae6090f5bc613fcdc6f61f79 ..................................................................................................................................................................................................................... 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 16:28:08,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:28:08,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:28:08,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:28:08,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:28:08,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:28:08,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:28:08,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:28:08,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:28:08,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:28:08,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:28:08,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:28:08,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:28:08,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:28:08,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:28:08,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:28:08,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:28:08,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:28:08,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:28:08,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:28:08,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:28:08,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:28:08,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:28:08,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:28:08,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:28:08,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:28:08,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:28:08,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:28:08,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:28:08,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:28:08,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:28:08,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:28:08,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:28:08,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:28:08,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:28:08,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:28:08,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:28:08,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:28:08,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:28:09,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:28:09,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:28:09,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:28:09,033 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:28:09,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:28:09,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:28:09,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:28:09,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:28:09,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:28:09,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:28:09,038 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:28:09,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:28:09,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:28:09,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:28:09,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:28:09,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:28:09,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:28:09,040 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:28:09,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:28:09,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:28:09,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:28:09,042 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:28:09,042 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:28:09,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:28:09,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:28:09,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:28:09,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:28:09,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:28:09,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:28:09,045 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:28:09,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:28:09,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:28:09,046 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_177003ce-8c86-4602-918f-28596f019bc8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e116c6e12c8b7e2ae6090f5bc613fcdc6f61f79 [2020-12-01 16:28:09,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:28:09,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:28:09,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:28:09,607 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:28:09,608 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:28:09,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test28-2.c [2020-12-01 16:28:09,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/data/46a37cdc8/e31c8e44830843b7804607eda01fcd9d/FLAGaba0a8604 [2020-12-01 16:28:10,549 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:28:10,550 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/sv-benchmarks/c/ldv-regression/test28-2.c [2020-12-01 16:28:10,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/data/46a37cdc8/e31c8e44830843b7804607eda01fcd9d/FLAGaba0a8604 [2020-12-01 16:28:10,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/data/46a37cdc8/e31c8e44830843b7804607eda01fcd9d [2020-12-01 16:28:10,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:28:10,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:28:10,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:28:10,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:28:10,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:28:10,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:28:10" (1/1) ... [2020-12-01 16:28:10,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2fbca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:10, skipping insertion in model container [2020-12-01 16:28:10,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:28:10" (1/1) ... [2020-12-01 16:28:10,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:28:10,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:28:11,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:28:11,224 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:28:11,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:28:11,281 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:28:11,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11 WrapperNode [2020-12-01 16:28:11,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:28:11,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:28:11,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:28:11,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:28:11,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11" (1/1) ... [2020-12-01 16:28:11,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11" (1/1) ... [2020-12-01 16:28:11,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:28:11,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:28:11,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:28:11,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:28:11,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11" (1/1) ... [2020-12-01 16:28:11,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11" (1/1) ... [2020-12-01 16:28:11,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11" (1/1) ... [2020-12-01 16:28:11,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11" (1/1) ... [2020-12-01 16:28:11,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11" (1/1) ... [2020-12-01 16:28:11,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11" (1/1) ... [2020-12-01 16:28:11,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11" (1/1) ... [2020-12-01 16:28:11,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:28:11,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:28:11,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:28:11,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:28:11,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:28:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/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 16:28:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:28:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:28:11,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:28:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:28:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:28:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:28:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:28:12,323 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:28:12,324 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 16:28:12,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:28:12 BoogieIcfgContainer [2020-12-01 16:28:12,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:28:12,329 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:28:12,330 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:28:12,350 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:28:12,350 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:28:12" (1/1) ... [2020-12-01 16:28:12,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:28:12,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:12,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-12-01 16:28:12,418 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-12-01 16:28:12,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:28:12,422 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:12,690 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 16:28:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:12,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2020-12-01 16:28:12,734 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2020-12-01 16:28:12,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:28:12,735 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2020-12-01 16:28:12,745 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:28:12,788 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:28:12,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:28:12 ImpRootNode [2020-12-01 16:28:12,795 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:28:12,800 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:28:12,801 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:28:12,801 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:28:12,802 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:28:12" (3/4) ... [2020-12-01 16:28:12,812 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:28:12,830 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-01 16:28:12,831 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 16:28:12,832 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:28:12,832 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:28:12,932 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_177003ce-8c86-4602-918f-28596f019bc8/bin/ukojak/witness.graphml [2020-12-01 16:28:12,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:28:12,940 INFO L168 Benchmark]: Toolchain (without parser) took 2046.88 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 71.1 MB in the end (delta: -8.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:28:12,946 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 72.3 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:28:12,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.89 ms. Allocated memory is still 96.5 MB. Free memory was 62.5 MB in the beginning and 73.8 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:12,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.41 ms. Allocated memory is still 96.5 MB. Free memory was 73.8 MB in the beginning and 72.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:28:12,951 INFO L168 Benchmark]: Boogie Preprocessor took 55.03 ms. Allocated memory is still 96.5 MB. Free memory was 72.6 MB in the beginning and 71.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:12,953 INFO L168 Benchmark]: RCFGBuilder took 924.21 ms. Allocated memory is still 96.5 MB. Free memory was 71.2 MB in the beginning and 47.4 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:12,954 INFO L168 Benchmark]: CodeCheck took 466.01 ms. Allocated memory is still 96.5 MB. Free memory was 47.4 MB in the beginning and 73.6 MB in the end (delta: -26.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:12,955 INFO L168 Benchmark]: Witness Printer took 137.28 ms. Allocated memory is still 96.5 MB. Free memory was 73.6 MB in the beginning and 71.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:12,968 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: 0.3s, 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, 6 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: 12]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 96.5 MB. Free memory was 72.3 MB in the beginning and 72.3 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 387.89 ms. Allocated memory is still 96.5 MB. Free memory was 62.5 MB in the beginning and 73.8 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.41 ms. Allocated memory is still 96.5 MB. Free memory was 73.8 MB in the beginning and 72.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.03 ms. Allocated memory is still 96.5 MB. Free memory was 72.6 MB in the beginning and 71.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 924.21 ms. Allocated memory is still 96.5 MB. Free memory was 71.2 MB in the beginning and 47.4 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 466.01 ms. Allocated memory is still 96.5 MB. Free memory was 47.4 MB in the beginning and 73.6 MB in the end (delta: -26.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * Witness Printer took 137.28 ms. Allocated memory is still 96.5 MB. Free memory was 73.6 MB in the beginning and 71.1 MB in the end (delta: 2.6 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...