./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/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 32bit --witnessprinter.graph.data.programhash edcc597a46f9ad79563531282ca675b8b1d7c4bf ............................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:17:28,478 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:17:28,479 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:17:28,487 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:17:28,487 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:17:28,487 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:17:28,488 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:17:28,489 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:17:28,490 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:17:28,490 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:17:28,491 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:17:28,491 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:17:28,492 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:17:28,493 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:17:28,493 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:17:28,494 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:17:28,495 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:17:28,496 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:17:28,497 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:17:28,498 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:17:28,499 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:17:28,500 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:17:28,501 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:17:28,502 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:17:28,502 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:17:28,503 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:17:28,504 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:17:28,504 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:17:28,505 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:17:28,505 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:17:28,505 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:17:28,506 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:17:28,506 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:17:28,506 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:17:28,507 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:17:28,507 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:17:28,508 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-11-10 12:17:28,518 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:17:28,518 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:17:28,519 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:17:28,519 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:17:28,519 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:17:28,519 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:17:28,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:17:28,520 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:17:28,520 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:17:28,520 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:17:28,520 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:17:28,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:17:28,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:17:28,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:17:28,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:17:28,520 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 12:17:28,521 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:17:28,521 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:17:28,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:17:28,521 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 12:17:28,521 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 12:17:28,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:17:28,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:17:28,521 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 12:17:28,521 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:17:28,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:17:28,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:17:28,522 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 12:17:28,522 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:17:28,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:17:28,522 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edcc597a46f9ad79563531282ca675b8b1d7c4bf [2018-11-10 12:17:28,546 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:17:28,556 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:17:28,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:17:28,560 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:17:28,560 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:17:28,561 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/../../sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 12:17:28,606 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/data/fbf2fe34c/f6fc91e442574decac8419f29a0722cf/FLAG063e601d7 [2018-11-10 12:17:29,000 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:17:29,000 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 12:17:29,004 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/data/fbf2fe34c/f6fc91e442574decac8419f29a0722cf/FLAG063e601d7 [2018-11-10 12:17:29,013 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/data/fbf2fe34c/f6fc91e442574decac8419f29a0722cf [2018-11-10 12:17:29,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:17:29,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:17:29,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:17:29,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:17:29,019 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:17:29,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27bb5729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29, skipping insertion in model container [2018-11-10 12:17:29,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:17:29,039 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:17:29,142 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:17:29,144 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:17:29,152 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:17:29,160 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:17:29,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29 WrapperNode [2018-11-10 12:17:29,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:17:29,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:17:29,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:17:29,161 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:17:29,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:17:29,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:17:29,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:17:29,179 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:17:29,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:17:29,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:17:29,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:17:29,189 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:17:29,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:17:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/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 [2018-11-10 12:17:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:17:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:17:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2018-11-10 12:17:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2018-11-10 12:17:29,393 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:17:29,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:17:29 BoogieIcfgContainer [2018-11-10 12:17:29,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:17:29,394 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 12:17:29,394 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 12:17:29,400 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 12:17:29,401 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:17:29" (1/1) ... [2018-11-10 12:17:29,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:17:29,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:29,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2018-11-10 12:17:29,445 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-11-10 12:17:29,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-10 12:17:29,446 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:17:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:17:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:17:29,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 37 transitions. [2018-11-10 12:17:29,619 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2018-11-10 12:17:29,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-10 12:17:29,620 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:17:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:17:29,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:17:29,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:29,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 36 transitions. [2018-11-10 12:17:29,677 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2018-11-10 12:17:29,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 12:17:29,677 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:17:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:17:29,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:17:29,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 35 transitions. [2018-11-10 12:17:29,762 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2018-11-10 12:17:29,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 12:17:29,762 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:17:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:17:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:17:29,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:29,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 41 transitions. [2018-11-10 12:17:29,994 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2018-11-10 12:17:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 12:17:29,999 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:17:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:17:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:17:30,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 40 transitions. [2018-11-10 12:17:30,086 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2018-11-10 12:17:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 12:17:30,087 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:17:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:17:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:17:30,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:30,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 39 transitions. [2018-11-10 12:17:30,170 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-11-10 12:17:30,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 12:17:30,171 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:17:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:17:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:17:30,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:30,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 38 transitions. [2018-11-10 12:17:30,193 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2018-11-10 12:17:30,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 12:17:30,193 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:17:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:17:30,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:17:30,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 37 transitions. [2018-11-10 12:17:30,345 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2018-11-10 12:17:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 12:17:30,346 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:17:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:17:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-10 12:17:30,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:30,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 32 transitions. [2018-11-10 12:17:30,412 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2018-11-10 12:17:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 12:17:30,412 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:17:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:17:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 12:17:30,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:17:30,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 26 transitions. [2018-11-10 12:17:30,508 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-10 12:17:30,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 12:17:30,509 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2018-11-10 12:17:30,516 INFO L778 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2018-11-10 12:17:30,550 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 12:17:30,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 12:17:30 ImpRootNode [2018-11-10 12:17:30,552 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 12:17:30,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:17:30,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:17:30,553 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:17:30,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:17:29" (3/4) ... [2018-11-10 12:17:30,555 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 12:17:30,559 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2018-11-10 12:17:30,562 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-10 12:17:30,562 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 12:17:30,562 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 12:17:30,589 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_46178dc1-8686-4b49-aff0-4891d6ad802c/bin-2019/ukojak/witness.graphml [2018-11-10 12:17:30,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:17:30,590 INFO L168 Benchmark]: Toolchain (without parser) took 1575.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 963.0 MB in the beginning and 929.1 MB in the end (delta: 33.9 MB). Peak memory consumption was 167.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:17:30,591 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:17:30,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.50 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:17:30,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.98 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:17:30,592 INFO L168 Benchmark]: Boogie Preprocessor took 9.69 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:17:30,592 INFO L168 Benchmark]: RCFGBuilder took 204.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -174.6 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:17:30,592 INFO L168 Benchmark]: CodeCheck took 1158.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 934.4 MB in the end (delta: 187.0 MB). Peak memory consumption was 187.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:17:30,593 INFO L168 Benchmark]: Witness Printer took 37.22 ms. Allocated memory is still 1.2 GB. Free memory was 934.4 MB in the beginning and 929.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:17:30,595 INFO L336 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, 32 locations, 6 error locations. SAFE Result, 1.0s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2688 SDtfs, 3040 SDslu, 64 SDs, 0 SdLazy, 18534 SolverSat, 6214 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 811 GetRequests, 748 SyntacticMatches, 17 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 803 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2558 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 30/30 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.50 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.98 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.69 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 204.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -174.6 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * CodeCheck took 1158.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 934.4 MB in the end (delta: 187.0 MB). Peak memory consumption was 187.0 MB. Max. memory is 11.5 GB. * Witness Printer took 37.22 ms. Allocated memory is still 1.2 GB. Free memory was 934.4 MB in the beginning and 929.1 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...