./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/recHanoi02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/recHanoi02-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/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 f48e7b9931723f1165b5bb8f3d86571b9aa1aa14 ......................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:15:14,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:15:14,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:15:14,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:15:14,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:15:14,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:15:14,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:15:14,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:15:14,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:15:14,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:15:14,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:15:14,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:15:14,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:15:14,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:15:14,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:15:14,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:15:14,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:15:14,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:15:14,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:15:14,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:15:14,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:15:14,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:15:14,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:15:14,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:15:14,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:15:14,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:15:14,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:15:14,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:15:14,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:15:14,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:15:14,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:15:14,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:15:14,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:15:14,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:15:14,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:15:14,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:15:14,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:15:14,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:15:14,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:15:14,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:15:14,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:15:14,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:15:14,095 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:15:14,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:15:14,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:15:14,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:15:14,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:15:14,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:15:14,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:15:14,097 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:15:14,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:15:14,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:15:14,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:15:14,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:15:14,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:15:14,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:15:14,099 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:15:14,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:15:14,100 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:15:14,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:15:14,100 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:15:14,100 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:15:14,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:15:14,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:15:14,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:15:14,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:15:14,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:15:14,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:15:14,102 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:15:14,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:15:14,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:15:14,102 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/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/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 -> f48e7b9931723f1165b5bb8f3d86571b9aa1aa14 [2019-10-22 10:15:14,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:15:14,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:15:14,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:15:14,156 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:15:14,157 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:15:14,157 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/../../sv-benchmarks/c/recursive/recHanoi02-2.c [2019-10-22 10:15:14,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/data/a2e82e08b/f53efea295b54bb492b15f27383807a5/FLAGaba815874 [2019-10-22 10:15:14,568 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:15:14,568 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/sv-benchmarks/c/recursive/recHanoi02-2.c [2019-10-22 10:15:14,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/data/a2e82e08b/f53efea295b54bb492b15f27383807a5/FLAGaba815874 [2019-10-22 10:15:14,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/data/a2e82e08b/f53efea295b54bb492b15f27383807a5 [2019-10-22 10:15:14,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:15:14,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:15:14,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:14,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:15:14,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:15:14,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182b198d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14, skipping insertion in model container [2019-10-22 10:15:14,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,607 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:15:14,626 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:15:14,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:14,746 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:15:14,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:14,827 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:15:14,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14 WrapperNode [2019-10-22 10:15:14,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:14,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:14,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:15:14,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:15:14,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:14,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:15:14,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:15:14,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:15:14,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14" (1/1) ... [2019-10-22 10:15:14,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:15:14,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:15:14,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:15:14,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:15:14,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/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 [2019-10-22 10:15:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2019-10-22 10:15:14,932 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2019-10-22 10:15:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:15:14,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:15:15,075 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:15:15,075 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 10:15:15,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:15 BoogieIcfgContainer [2019-10-22 10:15:15,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:15:15,076 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:15:15,077 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:15:15,086 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:15:15,086 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:15:15,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2019-10-22 10:15:15,131 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2019-10-22 10:15:15,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:15:15,136 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:15,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:15,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:15,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 24 transitions. [2019-10-22 10:15:15,530 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-10-22 10:15:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:15:15,530 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:15:16,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 35 transitions. [2019-10-22 10:15:16,012 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2019-10-22 10:15:16,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 10:15:16,013 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 10:15:16,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 24 transitions. [2019-10-22 10:15:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2019-10-22 10:15:16,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:15:16,479 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2019-10-22 10:15:16,489 INFO L771 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-10-22 10:15:16,557 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:15:16,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:15:16 ImpRootNode [2019-10-22 10:15:16,562 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:15:16,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:15:16,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:15:16,563 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:15:16,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:15" (3/4) ... [2019-10-22 10:15:16,568 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:15:16,574 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure hanoi [2019-10-22 10:15:16,580 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 10:15:16,582 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 10:15:16,631 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ae4dab09-ec1e-4e06-97aa-f428fded5b56/bin/ukojak/witness.graphml [2019-10-22 10:15:16,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:15:16,637 INFO L168 Benchmark]: Toolchain (without parser) took 2047.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 932.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 148.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:16,638 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:16,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:16,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.47 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. [2019-10-22 10:15:16,639 INFO L168 Benchmark]: Boogie Preprocessor took 12.08 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. [2019-10-22 10:15:16,639 INFO L168 Benchmark]: RCFGBuilder took 202.32 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:16,640 INFO L168 Benchmark]: CodeCheck took 1485.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.9 MB in the end (delta: 175.2 MB). Peak memory consumption was 175.2 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:16,640 INFO L168 Benchmark]: Witness Printer took 70.95 ms. Allocated memory is still 1.2 GB. Free memory was 937.9 MB in the beginning and 932.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:16,643 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 2 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 28 SDslu, 48 SDs, 0 SdLazy, 274 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 410 GetRequests, 362 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1485 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 11/18 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: 35]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 * 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 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 238.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.47 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 12.08 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 202.32 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * CodeCheck took 1485.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.9 MB in the end (delta: 175.2 MB). Peak memory consumption was 175.2 MB. Max. memory is 11.5 GB. * Witness Printer took 70.95 ms. Allocated memory is still 1.2 GB. Free memory was 937.9 MB in the beginning and 932.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...