./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/McCarthy91_false-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91_false-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/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 37028c56b7915050ee6a79b5e737b9e44bf7c3db ........................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 06:38:48,271 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:38:48,272 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:38:48,278 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:38:48,279 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:38:48,279 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:38:48,280 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:38:48,282 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:38:48,283 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:38:48,283 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:38:48,284 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:38:48,284 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:38:48,285 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:38:48,285 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:38:48,286 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:38:48,286 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:38:48,287 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:38:48,288 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:38:48,289 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:38:48,290 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:38:48,291 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:38:48,291 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:38:48,292 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:38:48,293 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:38:48,293 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:38:48,293 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:38:48,294 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:38:48,294 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:38:48,295 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:38:48,296 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:38:48,296 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:38:48,296 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:38:48,297 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:38:48,297 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:38:48,298 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:38:48,298 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:38:48,298 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-11-23 06:38:48,306 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:38:48,306 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:38:48,307 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:38:48,307 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 06:38:48,308 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 06:38:48,308 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 06:38:48,308 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:38:48,308 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:38:48,308 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 06:38:48,308 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:38:48,309 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:38:48,309 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:38:48,309 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 06:38:48,309 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:38:48,309 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 06:38:48,309 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 06:38:48,309 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:38:48,310 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:38:48,310 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:38:48,310 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 06:38:48,310 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 06:38:48,310 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 06:38:48,310 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:38:48,310 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:38:48,311 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 06:38:48,311 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:38:48,311 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:38:48,311 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 06:38:48,311 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 06:38:48,311 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:38:48,311 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 06:38:48,311 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_001b09e0-00d9-479f-a395-5354cfe6936e/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 -> 37028c56b7915050ee6a79b5e737b9e44bf7c3db [2018-11-23 06:38:48,335 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:38:48,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:38:48,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:38:48,349 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:38:48,350 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:38:48,350 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/../../sv-benchmarks/c/recursive/McCarthy91_false-unreach-call_true-no-overflow_true-termination.c [2018-11-23 06:38:48,401 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/data/1d67dced6/15f674a1bb844fe1baf1db4c8194779a/FLAG34a05480e [2018-11-23 06:38:48,753 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:38:48,753 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/sv-benchmarks/c/recursive/McCarthy91_false-unreach-call_true-no-overflow_true-termination.c [2018-11-23 06:38:48,758 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/data/1d67dced6/15f674a1bb844fe1baf1db4c8194779a/FLAG34a05480e [2018-11-23 06:38:49,194 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/data/1d67dced6/15f674a1bb844fe1baf1db4c8194779a [2018-11-23 06:38:49,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:38:49,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:38:49,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:38:49,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:38:49,202 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:38:49,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585def0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49, skipping insertion in model container [2018-11-23 06:38:49,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:38:49,226 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:38:49,336 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:38:49,338 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:38:49,347 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:38:49,356 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:38:49,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49 WrapperNode [2018-11-23 06:38:49,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:38:49,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:38:49,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:38:49,357 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:38:49,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:38:49,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:38:49,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:38:49,377 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:38:49,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:38:49,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:38:49,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:38:49,389 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:38:49,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:38:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/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 [2018-11-23 06:38:49,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:38:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:38:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2018-11-23 06:38:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2018-11-23 06:38:49,607 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:38:49,607 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 06:38:49,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:49 BoogieIcfgContainer [2018-11-23 06:38:49,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:38:49,608 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 06:38:49,608 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 06:38:49,615 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 06:38:49,616 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:49" (1/1) ... [2018-11-23 06:38:49,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:38:49,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:49,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2018-11-23 06:38:49,662 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-11-23 06:38:49,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 06:38:49,663 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:38:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 37 transitions. [2018-11-23 06:38:49,843 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2018-11-23 06:38:49,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 06:38:49,843 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:38:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:49,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:49,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 36 transitions. [2018-11-23 06:38:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2018-11-23 06:38:49,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-23 06:38:49,905 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:38:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:49,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:49,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 35 transitions. [2018-11-23 06:38:49,974 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2018-11-23 06:38:49,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-23 06:38:49,974 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:38:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:50,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:50,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 41 transitions. [2018-11-23 06:38:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2018-11-23 06:38:50,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 06:38:50,192 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:38:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:50,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:50,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:50,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 40 transitions. [2018-11-23 06:38:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2018-11-23 06:38:50,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 06:38:50,287 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:38:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:50,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:50,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 39 transitions. [2018-11-23 06:38:50,393 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-11-23 06:38:50,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 06:38:50,394 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:38:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:50,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:50,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 38 transitions. [2018-11-23 06:38:50,423 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2018-11-23 06:38:50,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 06:38:50,424 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:38:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:50,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:38:50,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:50,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 37 transitions. [2018-11-23 06:38:50,580 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2018-11-23 06:38:50,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 06:38:50,580 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:38:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:50,617 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 06:38:50,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:50,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 32 transitions. [2018-11-23 06:38:50,647 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2018-11-23 06:38:50,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 06:38:50,647 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:38:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:38:50,675 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 06:38:50,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:38:50,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 26 transitions. [2018-11-23 06:38:50,732 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-23 06:38:50,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 06:38:50,733 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2018-11-23 06:38:50,742 INFO L775 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2018-11-23 06:38:50,784 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 06:38:50,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 06:38:50 ImpRootNode [2018-11-23 06:38:50,787 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 06:38:50,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:38:50,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:38:50,787 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:38:50,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:38:49" (3/4) ... [2018-11-23 06:38:50,790 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 06:38:50,794 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2018-11-23 06:38:50,797 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 06:38:50,798 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 06:38:50,798 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 06:38:50,837 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_001b09e0-00d9-479f-a395-5354cfe6936e/bin-2019/ukojak/witness.graphml [2018-11-23 06:38:50,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:38:50,838 INFO L168 Benchmark]: Toolchain (without parser) took 1641.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 961.9 MB in the beginning and 929.0 MB in the end (delta: 32.9 MB). Peak memory consumption was 168.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:50,839 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-23 06:38:50,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.39 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:50,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:50,840 INFO L168 Benchmark]: Boogie Preprocessor took 10.99 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:38:50,840 INFO L168 Benchmark]: RCFGBuilder took 219.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:50,840 INFO L168 Benchmark]: CodeCheck took 1178.55 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: 179.2 MB). Peak memory consumption was 179.2 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:50,840 INFO L168 Benchmark]: Witness Printer took 50.22 ms. Allocated memory is still 1.2 GB. Free memory was 934.4 MB in the beginning and 929.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 06:38:50,843 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, 31 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: 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 - 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 0.14 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 158.39 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 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 20.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.99 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 219.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * CodeCheck took 1178.55 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: 179.2 MB). Peak memory consumption was 179.2 MB. Max. memory is 11.5 GB. * Witness Printer took 50.22 ms. Allocated memory is still 1.2 GB. Free memory was 934.4 MB in the beginning and 929.0 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...