./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/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 e8383605609727536c7199df6048e5c9703aa6e6 ........................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:12:05,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:12:05,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:12:05,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:12:05,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:12:05,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:12:05,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:12:05,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:12:05,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:12:05,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:12:05,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:12:05,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:12:05,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:12:05,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:12:05,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:12:05,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:12:05,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:12:05,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:12:05,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:12:05,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:12:05,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:12:05,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:12:05,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:12:05,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:12:05,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:12:05,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:12:05,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:12:05,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:12:05,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:12:05,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:12:05,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:12:05,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:12:05,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:12:05,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:12:05,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:12:05,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:12:05,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:12:05,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:12:05,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:12:05,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:12:05,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:12:05,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 23:12:05,352 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:12:05,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:12:05,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 23:12:05,353 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 23:12:05,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:12:05,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:12:05,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:12:05,355 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:12:05,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:12:05,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:12:05,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:12:05,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:12:05,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:12:05,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:12:05,357 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:12:05,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:12:05,357 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:12:05,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:12:05,358 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 23:12:05,358 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 23:12:05,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:12:05,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:12:05,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 23:12:05,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:12:05,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:12:05,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:12:05,359 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 23:12:05,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:12:05,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:12:05,360 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_134de867-ea21-4e17-8e95-4b1ca500fef7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8383605609727536c7199df6048e5c9703aa6e6 [2020-11-29 23:12:05,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:12:05,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:12:05,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:12:05,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:12:05,679 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:12:05,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2020-11-29 23:12:05,769 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/data/cdee54ac8/fc1447e8d08b4ca89594ab5e4dd43e78/FLAG78d8b041b [2020-11-29 23:12:06,279 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:12:06,280 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2020-11-29 23:12:06,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/data/cdee54ac8/fc1447e8d08b4ca89594ab5e4dd43e78/FLAG78d8b041b [2020-11-29 23:12:06,674 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/data/cdee54ac8/fc1447e8d08b4ca89594ab5e4dd43e78 [2020-11-29 23:12:06,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:12:06,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:12:06,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:12:06,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:12:06,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:12:06,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@116b462f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06, skipping insertion in model container [2020-11-29 23:12:06,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:12:06,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:12:06,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:12:06,890 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:12:06,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:12:06,931 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:12:06,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06 WrapperNode [2020-11-29 23:12:06,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:12:06,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:12:06,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:12:06,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:12:06,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:12:06,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:12:06,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:12:06,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:12:06,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06" (1/1) ... [2020-11-29 23:12:06,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:12:06,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:12:06,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:12:06,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:12:06,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 23:12:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:12:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:12:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2020-11-29 23:12:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2020-11-29 23:12:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:12:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:12:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-11-29 23:12:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-11-29 23:12:07,491 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:12:07,492 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 23:12:07,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:12:07 BoogieIcfgContainer [2020-11-29 23:12:07,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:12:07,495 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 23:12:07,495 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 23:12:07,502 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 23:12:07,503 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:12:07" (1/1) ... [2020-11-29 23:12:07,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:12:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:12:07,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2020-11-29 23:12:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-11-29 23:12:07,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 23:12:07,553 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:12:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:12:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:12:07,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:12:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2020-11-29 23:12:07,830 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-11-29 23:12:07,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 23:12:07,831 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:12:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:12:08,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:12:08,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:12:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2020-11-29 23:12:08,486 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2020-11-29 23:12:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 23:12:08,488 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:12:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:12:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 23:12:09,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:12:09,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 39 states and 46 transitions. [2020-11-29 23:12:09,731 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2020-11-29 23:12:09,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 23:12:09,732 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:12:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:12:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 23:12:11,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:12:11,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 47 states and 57 transitions. [2020-11-29 23:12:11,348 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2020-11-29 23:12:11,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 23:12:11,350 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:12:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:12:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 23:12:12,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:12:12,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 48 states and 58 transitions. [2020-11-29 23:12:12,239 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2020-11-29 23:12:12,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-29 23:12:12,240 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:12:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:12:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-29 23:12:14,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:12:14,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 39 states and 44 transitions. [2020-11-29 23:12:14,457 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-11-29 23:12:14,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:12:14,458 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2020-11-29 23:12:14,464 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 23:12:14,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 11:12:14 ImpRootNode [2020-11-29 23:12:14,699 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 23:12:14,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:12:14,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:12:14,700 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:12:14,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:12:07" (3/4) ... [2020-11-29 23:12:14,703 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:12:14,708 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2020-11-29 23:12:14,708 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-11-29 23:12:14,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-29 23:12:14,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 23:12:14,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:12:14,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:12:14,762 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_134de867-ea21-4e17-8e95-4b1ca500fef7/bin/ukojak/witness.graphml [2020-11-29 23:12:14,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:12:14,764 INFO L168 Benchmark]: Toolchain (without parser) took 8085.70 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 82.3 MB in the beginning and 96.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,765 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 46.3 MB in the beginning and 46.3 MB in the end (delta: 62.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:12:14,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.65 ms. Allocated memory is still 111.1 MB. Free memory was 82.0 MB in the beginning and 85.6 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.69 ms. Allocated memory is still 111.1 MB. Free memory was 85.6 MB in the beginning and 84.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,767 INFO L168 Benchmark]: Boogie Preprocessor took 17.51 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 83.5 MB in the end (delta: 886.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:12:14,768 INFO L168 Benchmark]: RCFGBuilder took 507.63 ms. Allocated memory is still 111.1 MB. Free memory was 83.2 MB in the beginning and 68.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,769 INFO L168 Benchmark]: CodeCheck took 7204.36 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 67.8 MB in the beginning and 98.5 MB in the end (delta: -30.6 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,770 INFO L168 Benchmark]: Witness Printer took 62.71 ms. Allocated memory is still 146.8 MB. Free memory was 98.5 MB in the beginning and 96.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,774 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: 6.9s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 800 SDtfs, 292 SDslu, 456 SDs, 0 SdLazy, 1852 SolverSat, 948 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 994 GetRequests, 862 SyntacticMatches, 30 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3759 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 14992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 35/66 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 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 46.3 MB in the beginning and 46.3 MB in the end (delta: 62.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.65 ms. Allocated memory is still 111.1 MB. Free memory was 82.0 MB in the beginning and 85.6 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.69 ms. Allocated memory is still 111.1 MB. Free memory was 85.6 MB in the beginning and 84.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.51 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 83.5 MB in the end (delta: 886.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 507.63 ms. Allocated memory is still 111.1 MB. Free memory was 83.2 MB in the beginning and 68.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 7204.36 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 67.8 MB in the beginning and 98.5 MB in the end (delta: -30.6 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Witness Printer took 62.71 ms. Allocated memory is still 146.8 MB. Free memory was 98.5 MB in the beginning and 96.4 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...