./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/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 0.1.24-678e011 [2019-11-20 10:08:53,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:08:53,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:08:53,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:08:53,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:08:53,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:08:53,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:08:53,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:08:53,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:08:53,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:08:53,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:08:53,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:08:53,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:08:53,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:08:53,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:08:53,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:08:53,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:08:53,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:08:53,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:08:53,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:08:53,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:08:53,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:08:53,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:08:53,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:08:53,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:08:53,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:08:53,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:08:53,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:08:53,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:08:53,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:08:53,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:08:53,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:08:53,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:08:53,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:08:53,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:08:53,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:08:53,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:08:53,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:08:53,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:08:53,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:08:53,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:08:53,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 10:08:53,161 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:08:53,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:08:53,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 10:08:53,162 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 10:08:53,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:08:53,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:08:53,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:08:53,163 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:08:53,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:08:53,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:08:53,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:08:53,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:08:53,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:08:53,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:08:53,164 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:08:53,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:08:53,165 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:08:53,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:08:53,165 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 10:08:53,165 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 10:08:53,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:08:53,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:08:53,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 10:08:53,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:08:53,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:08:53,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:08:53,166 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 10:08:53,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:08:53,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:08:53,167 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_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/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 [2019-11-20 10:08:53,323 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:08:53,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:08:53,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:08:53,338 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:08:53,346 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:08:53,347 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2019-11-20 10:08:53,398 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/data/bbb35af35/9dd93f4933dc4d689f8e1cac745ae33b/FLAG00eda35bb [2019-11-20 10:08:53,775 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:08:53,775 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2019-11-20 10:08:53,781 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/data/bbb35af35/9dd93f4933dc4d689f8e1cac745ae33b/FLAG00eda35bb [2019-11-20 10:08:54,155 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/data/bbb35af35/9dd93f4933dc4d689f8e1cac745ae33b [2019-11-20 10:08:54,157 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:08:54,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:08:54,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:08:54,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:08:54,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:08:54,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65588bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54, skipping insertion in model container [2019-11-20 10:08:54,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,174 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:08:54,192 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:08:54,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:08:54,449 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:08:54,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:08:54,486 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:08:54,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54 WrapperNode [2019-11-20 10:08:54,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:08:54,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:08:54,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:08:54,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:08:54,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:08:54,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:08:54,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:08:54,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:08:54,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:08:54,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:08:54,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:08:54,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:08:54,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:08:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/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 [2019-11-20 10:08:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:08:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-11-20 10:08:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-11-20 10:08:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:08:54,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:08:54,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 10:08:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:08:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:08:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2019-11-20 10:08:54,606 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2019-11-20 10:08:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:08:54,889 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:08:54,889 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 10:08:54,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:08:54 BoogieIcfgContainer [2019-11-20 10:08:54,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:08:54,891 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 10:08:54,891 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 10:08:54,901 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 10:08:54,901 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:08:54" (1/1) ... [2019-11-20 10:08:54,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:08:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:08:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2019-11-20 10:08:54,944 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-20 10:08:54,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 10:08:54,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:08:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:08:55,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:08:55,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:08:55,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 20 transitions. [2019-11-20 10:08:55,211 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-11-20 10:08:55,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 10:08:55,213 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:08:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:08:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:08:55,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:08:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 30 transitions. [2019-11-20 10:08:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2019-11-20 10:08:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 10:08:55,856 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:08:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:08:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:08:56,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:08:56,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 40 transitions. [2019-11-20 10:08:56,903 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2019-11-20 10:08:56,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 10:08:56,904 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:08:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:08:57,155 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:08:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:08:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 33 states and 51 transitions. [2019-11-20 10:08:58,061 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2019-11-20 10:08:58,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 10:08:58,062 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:08:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:08:58,342 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:08:59,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:08:59,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 38 states and 63 transitions. [2019-11-20 10:08:59,260 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2019-11-20 10:08:59,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 10:08:59,261 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:08:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:08:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:09:00,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:09:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 43 states and 76 transitions. [2019-11-20 10:09:00,869 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 76 transitions. [2019-11-20 10:09:00,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-20 10:09:00,870 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:09:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:09:01,435 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:09:02,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:09:02,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 48 states and 90 transitions. [2019-11-20 10:09:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 90 transitions. [2019-11-20 10:09:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 10:09:02,640 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:09:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:09:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:09:04,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:09:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 53 states and 105 transitions. [2019-11-20 10:09:04,546 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 105 transitions. [2019-11-20 10:09:04,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 10:09:04,548 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:09:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:09:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:09:06,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:09:06,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 58 states and 121 transitions. [2019-11-20 10:09:06,601 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 121 transitions. [2019-11-20 10:09:06,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-20 10:09:06,603 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:09:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:09:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:09:09,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:09:09,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 63 states and 128 transitions. [2019-11-20 10:09:09,015 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 128 transitions. [2019-11-20 10:09:09,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-20 10:09:09,017 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 10:09:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:09:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 206 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:09:19,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 10:09:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 61 states and 79 transitions. [2019-11-20 10:09:19,511 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2019-11-20 10:09:19,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:09:19,513 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2019-11-20 10:09:19,522 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-20 10:09:19,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 10:09:19 ImpRootNode [2019-11-20 10:09:19,726 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 10:09:19,727 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:09:19,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:09:19,727 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:09:19,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:08:54" (3/4) ... [2019-11-20 10:09:19,730 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 10:09:19,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2019-11-20 10:09:19,735 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2019-11-20 10:09:19,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-20 10:09:19,739 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 10:09:19,739 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 10:09:19,739 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 10:09:19,781 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cf7b9f94-9297-4e08-9133-afe9f6fc73e7/bin/ukojak/witness.graphml [2019-11-20 10:09:19,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:09:19,783 INFO L168 Benchmark]: Toolchain (without parser) took 25624.20 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 496.0 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -83.6 MB). Peak memory consumption was 412.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:09:19,784 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 964.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:09:19,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:09:19,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.88 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:09:19,786 INFO L168 Benchmark]: Boogie Preprocessor took 18.51 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. [2019-11-20 10:09:19,786 INFO L168 Benchmark]: RCFGBuilder took 347.37 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:09:19,787 INFO L168 Benchmark]: CodeCheck took 24835.07 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 371.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.2 MB). Peak memory consumption was 416.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:09:19,788 INFO L168 Benchmark]: Witness Printer took 54.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:09:19,791 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: 24.5s, 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, 22.5s 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 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 964.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 328.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.88 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.51 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 347.37 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * CodeCheck took 24835.07 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 371.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.2 MB). Peak memory consumption was 416.4 MB. Max. memory is 11.5 GB. * Witness Printer took 54.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...