./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b5_o10.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_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b5_o10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/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 aea35f6fe28f2a249b678370b7d0543ee4b994af ............................................................................................................................................................................................................................................................... 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 16:25:05,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:25:05,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:25:05,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:25:05,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:25:05,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:25:05,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:25:05,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:25:05,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:25:05,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:25:05,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:25:05,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:25:05,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:25:05,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:25:05,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:25:05,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:25:05,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:25:05,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:25:05,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:25:05,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:25:05,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:25:05,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:25:05,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:25:05,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:25:05,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:25:05,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:25:05,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:25:05,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:25:05,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:25:05,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:25:05,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:25:05,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:25:05,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:25:05,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:25:05,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:25:05,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:25:05,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:25:05,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:25:05,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:25:05,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:25:05,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:25:05,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:25:05,968 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:25:05,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:25:05,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:25:05,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:25:05,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:25:05,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:25:05,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:25:05,976 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:25:05,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:25:05,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:25:05,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:25:05,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:25:05,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:25:05,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:25:05,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:25:05,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:25:05,980 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:25:05,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:25:05,981 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:25:05,981 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:25:05,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:25:05,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:25:05,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:25:05,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:25:05,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:25:05,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:25:05,983 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:25:05,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:25:05,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:25:05,984 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_35d19516-a658-4caa-8fd3-db70255eb4bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aea35f6fe28f2a249b678370b7d0543ee4b994af [2020-12-01 16:25:06,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:25:06,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:25:06,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:25:06,379 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:25:06,380 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:25:06,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id2_b5_o10.c [2020-12-01 16:25:06,501 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/data/0310ce348/8a8c1734c39d4450ba65146c312f14e1/FLAGd02807a5f [2020-12-01 16:25:07,075 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:25:07,075 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/sv-benchmarks/c/recursive-simple/id2_b5_o10.c [2020-12-01 16:25:07,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/data/0310ce348/8a8c1734c39d4450ba65146c312f14e1/FLAGd02807a5f [2020-12-01 16:25:07,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/data/0310ce348/8a8c1734c39d4450ba65146c312f14e1 [2020-12-01 16:25:07,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:25:07,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:25:07,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:25:07,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:25:07,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:25:07,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449803ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07, skipping insertion in model container [2020-12-01 16:25:07,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:25:07,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:25:07,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:25:07,462 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:25:07,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:25:07,513 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:25:07,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07 WrapperNode [2020-12-01 16:25:07,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:25:07,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:25:07,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:25:07,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:25:07,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:25:07,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:25:07,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:25:07,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:25:07,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:07,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:25:07,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:25:07,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:25:07,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:25:07,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:25:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/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 16:25:07,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:25:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:25:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2020-12-01 16:25:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2020-12-01 16:25:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:25:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:25:07,661 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-12-01 16:25:07,661 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-12-01 16:25:07,992 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:25:07,993 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 16:25:07,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:07 BoogieIcfgContainer [2020-12-01 16:25:07,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:25:07,997 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:25:07,998 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:25:08,030 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:25:08,031 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:07" (1/1) ... [2020-12-01 16:25:08,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:25:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:08,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2020-12-01 16:25:08,102 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-12-01 16:25:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:25:08,108 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:08,434 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 16:25:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2020-12-01 16:25:08,522 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-12-01 16:25:08,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:25:08,523 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:08,903 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 16:25:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2020-12-01 16:25:09,317 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2020-12-01 16:25:09,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:25:09,319 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:09,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:25:10,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 39 states and 46 transitions. [2020-12-01 16:25:10,596 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2020-12-01 16:25:10,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:25:10,600 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 16:25:12,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:12,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 47 states and 58 transitions. [2020-12-01 16:25:12,760 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2020-12-01 16:25:12,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 16:25:12,762 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-01 16:25:15,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 53 states and 65 transitions. [2020-12-01 16:25:15,412 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2020-12-01 16:25:15,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 16:25:15,423 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 16:25:17,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:17,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 59 states and 72 transitions. [2020-12-01 16:25:17,860 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2020-12-01 16:25:17,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-01 16:25:17,862 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:25:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:25:19,156 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-12-01 16:25:22,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:25:22,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 50 states and 58 transitions. [2020-12-01 16:25:22,438 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2020-12-01 16:25:22,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:25:22,439 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-12-01 16:25:22,446 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:25:22,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:25:22 ImpRootNode [2020-12-01 16:25:22,628 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:25:22,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:25:22,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:25:22,630 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:25:22,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:25:07" (3/4) ... [2020-12-01 16:25:22,634 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:25:22,639 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2020-12-01 16:25:22,640 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-12-01 16:25:22,646 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-01 16:25:22,647 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 16:25:22,647 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:25:22,647 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:25:22,702 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_35d19516-a658-4caa-8fd3-db70255eb4bd/bin/ukojak/witness.graphml [2020-12-01 16:25:22,702 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:25:22,705 INFO L168 Benchmark]: Toolchain (without parser) took 15586.12 ms. Allocated memory was 102.8 MB in the beginning and 249.6 MB in the end (delta: 146.8 MB). Free memory was 71.6 MB in the beginning and 110.2 MB in the end (delta: -38.6 MB). Peak memory consumption was 109.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:22,706 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 79.7 MB. Free memory was 50.6 MB in the beginning and 50.6 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:25:22,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.50 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 80.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:22,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.35 ms. Allocated memory is still 102.8 MB. Free memory was 80.9 MB in the beginning and 79.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:22,709 INFO L168 Benchmark]: Boogie Preprocessor took 23.64 ms. Allocated memory is still 102.8 MB. Free memory was 79.5 MB in the beginning and 78.9 MB in the end (delta: 661.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:25:22,716 INFO L168 Benchmark]: RCFGBuilder took 416.10 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 63.4 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:22,717 INFO L168 Benchmark]: CodeCheck took 14631.15 ms. Allocated memory was 102.8 MB in the beginning and 249.6 MB in the end (delta: 146.8 MB). Free memory was 62.8 MB in the beginning and 112.3 MB in the end (delta: -49.5 MB). Peak memory consumption was 97.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:22,718 INFO L168 Benchmark]: Witness Printer took 73.64 ms. Allocated memory is still 249.6 MB. Free memory was 112.3 MB in the beginning and 110.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:25:22,723 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 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.3s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1600 SDtfs, 632 SDslu, 1008 SDs, 0 SdLazy, 3938 SolverSat, 1998 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1400 GetRequests, 1195 SyntacticMatches, 43 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11131 ImplicationChecksByTransitivity, 12.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 28400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 80/160 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: 4]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 79.7 MB. Free memory was 50.6 MB in the beginning and 50.6 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 395.50 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 80.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.35 ms. Allocated memory is still 102.8 MB. Free memory was 80.9 MB in the beginning and 79.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.64 ms. Allocated memory is still 102.8 MB. Free memory was 79.5 MB in the beginning and 78.9 MB in the end (delta: 661.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 416.10 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 63.4 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 14631.15 ms. Allocated memory was 102.8 MB in the beginning and 249.6 MB in the end (delta: 146.8 MB). Free memory was 62.8 MB in the beginning and 112.3 MB in the end (delta: -49.5 MB). Peak memory consumption was 97.9 MB. Max. memory is 16.1 GB. * Witness Printer took 73.64 ms. Allocated memory is still 249.6 MB. Free memory was 112.3 MB in the beginning and 110.2 MB in the end (delta: 2.1 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...