./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/recHanoi02-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/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 0.1.24-6b5699a [2019-11-26 02:55:26,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:55:26,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:55:26,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:55:26,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:55:26,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:55:26,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:55:26,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:55:26,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:55:26,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:55:26,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:55:26,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:55:26,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:55:26,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:55:26,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:55:26,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:55:26,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:55:26,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:55:26,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:55:26,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:55:26,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:55:26,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:55:26,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:55:26,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:55:26,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:55:26,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:55:26,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:55:26,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:55:26,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:55:26,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:55:26,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:55:26,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:55:26,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:55:26,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:55:26,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:55:26,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:55:26,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:55:26,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:55:26,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:55:26,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:55:26,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:55:26,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:55:26,157 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:55:26,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:55:26,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:55:26,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:55:26,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:55:26,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:55:26,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:55:26,159 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:55:26,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:55:26,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:55:26,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:55:26,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:55:26,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:55:26,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:55:26,160 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:55:26,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:55:26,160 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:55:26,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:55:26,161 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:55:26,161 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:55:26,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:55:26,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:55:26,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:55:26,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:55:26,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:55:26,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:55:26,162 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:55:26,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:55:26,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:55:26,163 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_0d193e84-856d-4d0e-9ee2-cdd04df3934e/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 [2019-11-26 02:55:26,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:55:26,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:55:26,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:55:26,349 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:55:26,350 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:55:26,351 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/../../sv-benchmarks/c/recursive/recHanoi02-2.c [2019-11-26 02:55:26,417 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/data/80f8d3e87/4ca04e792b454dd39261bbcda4494559/FLAG74ac75cac [2019-11-26 02:55:26,793 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:55:26,794 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/sv-benchmarks/c/recursive/recHanoi02-2.c [2019-11-26 02:55:26,799 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/data/80f8d3e87/4ca04e792b454dd39261bbcda4494559/FLAG74ac75cac [2019-11-26 02:55:27,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/data/80f8d3e87/4ca04e792b454dd39261bbcda4494559 [2019-11-26 02:55:27,221 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:55:27,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:55:27,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:55:27,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:55:27,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:55:27,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b33eedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27, skipping insertion in model container [2019-11-26 02:55:27,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:55:27,254 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:55:27,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:55:27,491 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:55:27,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:55:27,522 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:55:27,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27 WrapperNode [2019-11-26 02:55:27,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:55:27,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:55:27,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:55:27,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:55:27,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:55:27,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:55:27,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:55:27,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:55:27,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:55:27,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:55:27,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:55:27,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:55:27,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:55:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/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 02:55:27,648 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2019-11-26 02:55:27,648 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2019-11-26 02:55:27,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:55:27,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:55:27,813 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:55:27,813 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:55:27,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:55:27 BoogieIcfgContainer [2019-11-26 02:55:27,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:55:27,815 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:55:27,815 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:55:27,825 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:55:27,825 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:55:27" (1/1) ... [2019-11-26 02:55:27,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:55:27,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:55:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2019-11-26 02:55:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2019-11-26 02:55:27,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:55:27,894 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:55:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:28,100 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 02:55:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:55:28,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 24 transitions. [2019-11-26 02:55:28,265 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-11-26 02:55:28,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:55:28,266 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:55:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:55:28,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:55:28,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 35 transitions. [2019-11-26 02:55:28,849 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2019-11-26 02:55:28,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 02:55:28,851 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:55:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:55:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-26 02:55:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:55:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 24 transitions. [2019-11-26 02:55:29,504 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2019-11-26 02:55:29,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:55:29,504 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2019-11-26 02:55:29,512 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-26 02:55:29,585 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:55:29,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:55:29 ImpRootNode [2019-11-26 02:55:29,591 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:55:29,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:55:29,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:55:29,593 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:55:29,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:55:27" (3/4) ... [2019-11-26 02:55:29,597 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:55:29,604 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure hanoi [2019-11-26 02:55:29,619 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:55:29,619 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:55:29,661 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0d193e84-856d-4d0e-9ee2-cdd04df3934e/bin/ukojak/witness.graphml [2019-11-26 02:55:29,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:55:29,663 INFO L168 Benchmark]: Toolchain (without parser) took 2440.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.5 MB in the beginning and 926.9 MB in the end (delta: 24.6 MB). Peak memory consumption was 157.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:29,664 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:55:29,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:29,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.43 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 02:55:29,665 INFO L168 Benchmark]: Boogie Preprocessor took 21.35 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 02:55:29,666 INFO L168 Benchmark]: RCFGBuilder took 232.12 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: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:29,667 INFO L168 Benchmark]: CodeCheck took 1776.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.9 MB in the end (delta: 175.4 MB). Peak memory consumption was 175.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:55:29,667 INFO L168 Benchmark]: Witness Printer took 69.47 ms. Allocated memory is still 1.2 GB. Free memory is still 926.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:55:29,669 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: 1.6s, 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, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 410 GetRequests, 362 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.1s 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 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.43 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 21.35 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 232.12 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: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * CodeCheck took 1776.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.9 MB in the end (delta: 175.4 MB). Peak memory consumption was 175.4 MB. Max. memory is 11.5 GB. * Witness Printer took 69.47 ms. Allocated memory is still 1.2 GB. Free memory is still 926.9 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...