./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 676e29c704408ba5cb62ef3917e5c4d703cda2e4 ........................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:43:11,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:43:11,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:43:11,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:43:11,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:43:11,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:43:11,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:43:12,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:43:12,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:43:12,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:43:12,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:43:12,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:43:12,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:43:12,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:43:12,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:43:12,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:43:12,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:43:12,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:43:12,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:43:12,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:43:12,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:43:12,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:43:12,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:43:12,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:43:12,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:43:12,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:43:12,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:43:12,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:43:12,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:43:12,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:43:12,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:43:12,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:43:12,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:43:12,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:43:12,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:43:12,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:43:12,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:43:12,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:43:12,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:43:12,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:43:12,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:43:12,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:43:12,072 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:43:12,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:43:12,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:43:12,083 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:43:12,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:43:12,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:43:12,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:43:12,084 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:43:12,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:43:12,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:43:12,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:43:12,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:43:12,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:43:12,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:43:12,086 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:43:12,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:43:12,086 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:43:12,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:43:12,087 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:43:12,088 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:43:12,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:43:12,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:43:12,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:43:12,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:43:12,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:43:12,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:43:12,089 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:43:12,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:43:12,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:43:12,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_24590bc8-39f4-4b38-bb96-51e6718063f5/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(__VERIFIER_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 -> 676e29c704408ba5cb62ef3917e5c4d703cda2e4 [2019-11-26 02:43:12,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:43:12,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:43:12,268 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:43:12,269 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:43:12,270 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:43:12,270 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2019-11-26 02:43:12,319 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/data/a3f021db7/93177f68ae4b42aa821fd7dd68fc40b4/FLAGcb7c5e085 [2019-11-26 02:43:12,756 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:43:12,757 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2019-11-26 02:43:12,762 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/data/a3f021db7/93177f68ae4b42aa821fd7dd68fc40b4/FLAGcb7c5e085 [2019-11-26 02:43:12,777 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/data/a3f021db7/93177f68ae4b42aa821fd7dd68fc40b4 [2019-11-26 02:43:12,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:43:12,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:43:12,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:43:12,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:43:12,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:43:12,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:43:12" (1/1) ... [2019-11-26 02:43:12,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71caa7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:12, skipping insertion in model container [2019-11-26 02:43:12,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:43:12" (1/1) ... [2019-11-26 02:43:12,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:43:12,820 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:43:12,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:43:13,035 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:43:13,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:43:13,069 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:43:13,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13 WrapperNode [2019-11-26 02:43:13,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:43:13,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:43:13,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:43:13,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:43:13,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13" (1/1) ... [2019-11-26 02:43:13,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13" (1/1) ... [2019-11-26 02:43:13,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:43:13,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:43:13,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:43:13,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:43:13,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13" (1/1) ... [2019-11-26 02:43:13,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13" (1/1) ... [2019-11-26 02:43:13,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13" (1/1) ... [2019-11-26 02:43:13,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13" (1/1) ... [2019-11-26 02:43:13,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13" (1/1) ... [2019-11-26 02:43:13,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13" (1/1) ... [2019-11-26 02:43:13,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13" (1/1) ... [2019-11-26 02:43:13,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:43:13,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:43:13,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:43:13,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:43:13,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:43:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/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 [2019-11-26 02:43:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:43:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-11-26 02:43:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-11-26 02:43:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:43:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:43:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:43:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:43:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:43:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2019-11-26 02:43:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2019-11-26 02:43:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:43:13,553 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:43:13,553 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:43:13,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:13 BoogieIcfgContainer [2019-11-26 02:43:13,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:43:13,555 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:43:13,555 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:43:13,569 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:43:13,569 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:13" (1/1) ... [2019-11-26 02:43:13,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:43:13,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:13,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2019-11-26 02:43:13,621 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-26 02:43:13,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:43:13,626 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:13,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:13,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:13,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 20 transitions. [2019-11-26 02:43:13,922 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-11-26 02:43:13,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:43:13,923 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:14,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:14,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 30 transitions. [2019-11-26 02:43:14,587 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2019-11-26 02:43:14,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:43:14,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:15,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:15,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 40 transitions. [2019-11-26 02:43:15,674 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2019-11-26 02:43:15,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-26 02:43:15,676 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:16,003 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:16,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:16,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 33 states and 51 transitions. [2019-11-26 02:43:16,865 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2019-11-26 02:43:16,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-26 02:43:16,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:17,190 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:18,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 38 states and 63 transitions. [2019-11-26 02:43:18,118 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2019-11-26 02:43:18,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:43:18,119 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:18,520 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 43 states and 76 transitions. [2019-11-26 02:43:19,632 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 76 transitions. [2019-11-26 02:43:19,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-26 02:43:19,633 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:20,044 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:21,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:21,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 48 states and 90 transitions. [2019-11-26 02:43:21,449 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 90 transitions. [2019-11-26 02:43:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-26 02:43:21,450 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:23,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:23,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 53 states and 105 transitions. [2019-11-26 02:43:23,445 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 105 transitions. [2019-11-26 02:43:23,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-26 02:43:23,449 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:25,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 58 states and 121 transitions. [2019-11-26 02:43:25,502 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 121 transitions. [2019-11-26 02:43:25,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-26 02:43:25,505 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:26,124 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:27,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:27,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 63 states and 128 transitions. [2019-11-26 02:43:27,865 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 128 transitions. [2019-11-26 02:43:27,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-26 02:43:27,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:43:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:43:31,106 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 206 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:43:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:43:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 61 states and 79 transitions. [2019-11-26 02:43:38,478 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2019-11-26 02:43:38,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:43:38,479 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2019-11-26 02:43:38,487 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-26 02:43:38,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:43:38 ImpRootNode [2019-11-26 02:43:38,708 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:43:38,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:43:38,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:43:38,708 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:43:38,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:43:13" (3/4) ... [2019-11-26 02:43:38,712 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:43:38,718 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2019-11-26 02:43:38,718 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2019-11-26 02:43:38,722 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-26 02:43:38,722 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 02:43:38,722 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:43:38,723 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:43:38,761 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_24590bc8-39f4-4b38-bb96-51e6718063f5/bin/ukojak/witness.graphml [2019-11-26 02:43:38,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:43:38,764 INFO L168 Benchmark]: Toolchain (without parser) took 25980.92 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 370.7 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -244.6 MB). Peak memory consumption was 126.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:38,764 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:43:38,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:38,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:43:38,767 INFO L168 Benchmark]: Boogie Preprocessor took 14.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:43:38,768 INFO L168 Benchmark]: RCFGBuilder took 433.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:38,768 INFO L168 Benchmark]: CodeCheck took 25152.86 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 234.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -89.3 MB). Peak memory consumption was 145.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:38,769 INFO L168 Benchmark]: Witness Printer took 53.85 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:43:38,771 INFO L335 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, 16 locations, 1 error locations. Result: SAFE, OverallTime: 24.8s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 17408 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 84430 SolverSat, 33422 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4014 GetRequests, 3498 SyntacticMatches, 216 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42302 ImplicationChecksByTransitivity, 22.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 341 NumberOfCodeBlocks, 341 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 84920 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 206/935 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: 16]: 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 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 433.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * CodeCheck took 25152.86 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 234.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -89.3 MB). Peak memory consumption was 145.0 MB. Max. memory is 11.5 GB. * Witness Printer took 53.85 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...