./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b5ce1e17bce3e34a2c882b1080bdbc1a62cb801 ........................................................................................................................................................................................................................................................................ 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 10:13:28,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:13:28,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:13:28,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:13:28,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:13:28,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:13:28,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:13:28,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:13:28,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:13:28,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:13:28,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:13:28,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:13:28,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:13:28,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:13:28,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:13:28,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:13:28,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:13:28,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:13:28,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:13:28,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:13:28,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:13:28,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:13:28,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:13:28,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:13:28,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:13:28,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:13:28,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:13:28,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:13:28,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:13:28,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:13:28,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:13:28,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:13:28,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:13:28,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:13:28,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:13:28,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:13:28,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:13:28,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:13:28,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:13:28,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:13:28,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:13:28,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-10-22 10:13:28,322 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:13:28,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:13:28,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:13:28,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:13:28,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:13:28,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:13:28,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:13:28,324 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:13:28,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:13:28,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:13:28,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:13:28,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:13:28,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:13:28,326 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:13:28,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:13:28,326 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:13:28,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:13:28,327 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:13:28,327 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:13:28,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:13:28,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:13:28,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:13:28,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:13:28,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:13:28,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:13:28,328 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:13:28,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:13:28,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:13:28,329 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_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b5ce1e17bce3e34a2c882b1080bdbc1a62cb801 [2019-10-22 10:13:28,352 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:13:28,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:13:28,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:13:28,365 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:13:28,366 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:13:28,366 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c [2019-10-22 10:13:28,410 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/data/a491027a8/cb6f2601b4ab45d1b4d6cf6338a0cbac/FLAG6a9f7b4c6 [2019-10-22 10:13:28,796 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:13:28,796 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c [2019-10-22 10:13:28,801 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/data/a491027a8/cb6f2601b4ab45d1b4d6cf6338a0cbac/FLAG6a9f7b4c6 [2019-10-22 10:13:29,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/data/a491027a8/cb6f2601b4ab45d1b4d6cf6338a0cbac [2019-10-22 10:13:29,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:13:29,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:13:29,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:13:29,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:13:29,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:13:29,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33407b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29, skipping insertion in model container [2019-10-22 10:13:29,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,206 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:13:29,219 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:13:29,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:13:29,340 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:13:29,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:13:29,419 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:13:29,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29 WrapperNode [2019-10-22 10:13:29,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:13:29,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:13:29,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:13:29,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:13:29,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:13:29,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:13:29,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:13:29,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:13:29,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:13:29,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:13:29,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:13:29,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:13:29,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:13:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/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 10:13:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2019-10-22 10:13:29,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2019-10-22 10:13:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 [2019-10-22 10:13:29,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 [2019-10-22 10:13:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:13:29,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:13:29,766 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:13:29,766 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 10:13:29,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:13:29 BoogieIcfgContainer [2019-10-22 10:13:29,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:13:29,768 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:13:29,768 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:13:29,799 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:13:29,799 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:13:29" (1/1) ... [2019-10-22 10:13:29,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:13:29,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:13:29,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 42 states and 47 transitions. [2019-10-22 10:13:29,849 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2019-10-22 10:13:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:13:29,853 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:13:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:13:29,983 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 10:13:30,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:13:30,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 45 states and 51 transitions. [2019-10-22 10:13:30,094 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2019-10-22 10:13:30,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:13:30,095 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:13:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:13:30,118 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 10:13:30,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:13:30,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 44 states and 50 transitions. [2019-10-22 10:13:30,193 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2019-10-22 10:13:30,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:13:30,194 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:13:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:13:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:13:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:13:30,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 40 states and 45 transitions. [2019-10-22 10:13:30,322 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2019-10-22 10:13:30,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:13:30,323 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:13:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:13:30,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:13:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:13:30,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 46 states and 56 transitions. [2019-10-22 10:13:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2019-10-22 10:13:30,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:13:30,552 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:13:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:13:30,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:13:30,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:13:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 45 states and 55 transitions. [2019-10-22 10:13:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2019-10-22 10:13:30,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:13:30,629 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:13:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:13:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:13:30,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:13:30,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 50 states and 64 transitions. [2019-10-22 10:13:30,838 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2019-10-22 10:13:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 10:13:30,841 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:13:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:13:31,046 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-22 10:13:31,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:13:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 20 states and 21 transitions. [2019-10-22 10:13:31,443 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-10-22 10:13:31,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:13:31,443 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2019-10-22 10:13:31,452 INFO L771 CodeCheckObserver]: All specifications hold 10 specifications checked. All of them hold [2019-10-22 10:13:31,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:13:31 ImpRootNode [2019-10-22 10:13:31,503 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:13:31,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:13:31,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:13:31,503 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:13:31,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:13:29" (3/4) ... [2019-10-22 10:13:31,507 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:13:31,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec1 [2019-10-22 10:13:31,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec2 [2019-10-22 10:13:31,518 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 10:13:31,518 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 10:13:31,518 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:13:31,562 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2d5abfc9-8bb3-4bd0-aa84-c06d1ad231b1/bin/ukojak/witness.graphml [2019-10-22 10:13:31,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:13:31,565 INFO L168 Benchmark]: Toolchain (without parser) took 2373.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.5 MB in the beginning and 889.5 MB in the end (delta: 54.9 MB). Peak memory consumption was 196.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:13:31,565 INFO L168 Benchmark]: CDTParser took 0.19 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 10:13:31,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:13:31,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.58 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 10:13:31,566 INFO L168 Benchmark]: Boogie Preprocessor took 15.43 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. [2019-10-22 10:13:31,567 INFO L168 Benchmark]: RCFGBuilder took 304.02 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:13:31,567 INFO L168 Benchmark]: CodeCheck took 1735.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 889.5 MB in the end (delta: 223.1 MB). Peak memory consumption was 223.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:13:31,567 INFO L168 Benchmark]: Witness Printer took 59.82 ms. Allocated memory is still 1.2 GB. Free memory is still 889.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:13:31,569 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, 42 locations, 10 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 652 SDtfs, 602 SDslu, 48 SDs, 0 SdLazy, 2606 SolverSat, 856 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 791 GetRequests, 728 SyntacticMatches, 15 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 3821 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 24/24 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: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 227.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.58 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 15.43 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. * RCFGBuilder took 304.02 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * CodeCheck took 1735.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 889.5 MB in the end (delta: 223.1 MB). Peak memory consumption was 223.1 MB. Max. memory is 11.5 GB. * Witness Printer took 59.82 ms. Allocated memory is still 1.2 GB. Free memory is still 889.5 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...