./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/string_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/string_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e655d34f6b59f7cc9a55d4dc4dc525a41685abad ....................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 04:18:25,475 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 04:18:25,476 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 04:18:25,484 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 04:18:25,484 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 04:18:25,484 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 04:18:25,485 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 04:18:25,486 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 04:18:25,486 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 04:18:25,487 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 04:18:25,487 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 04:18:25,487 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 04:18:25,488 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 04:18:25,488 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 04:18:25,489 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 04:18:25,489 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 04:18:25,490 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 04:18:25,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 04:18:25,492 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 04:18:25,493 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 04:18:25,494 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 04:18:25,495 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 04:18:25,496 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 04:18:25,496 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 04:18:25,496 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 04:18:25,497 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 04:18:25,498 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 04:18:25,498 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 04:18:25,499 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 04:18:25,499 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 04:18:25,499 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 04:18:25,499 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 04:18:25,500 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 04:18:25,500 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 04:18:25,500 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 04:18:25,500 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 04:18:25,501 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-09 04:18:25,508 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 04:18:25,508 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 04:18:25,508 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 04:18:25,509 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 04:18:25,509 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 04:18:25,509 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 04:18:25,509 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 04:18:25,510 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 04:18:25,510 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 04:18:25,510 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 04:18:25,510 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 04:18:25,510 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 04:18:25,510 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 04:18:25,511 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 04:18:25,511 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 04:18:25,511 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 04:18:25,511 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 04:18:25,511 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 04:18:25,511 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 04:18:25,511 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 04:18:25,512 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 04:18:25,512 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 04:18:25,512 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 04:18:25,512 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 04:18:25,512 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 04:18:25,512 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 04:18:25,513 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 04:18:25,513 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 04:18:25,513 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 04:18:25,513 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_0cdc85e2-3712-43fc-8afe-633774658187/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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e655d34f6b59f7cc9a55d4dc4dc525a41685abad [2018-12-09 04:18:25,534 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 04:18:25,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 04:18:25,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 04:18:25,544 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 04:18:25,544 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 04:18:25,544 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/../../sv-benchmarks/c/loops/string_true-unreach-call_true-termination.i [2018-12-09 04:18:25,577 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/data/60c6922a2/a68f7ce923a7453382cfd861090b7c9c/FLAGb7a68b48c [2018-12-09 04:18:26,007 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 04:18:26,007 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/sv-benchmarks/c/loops/string_true-unreach-call_true-termination.i [2018-12-09 04:18:26,010 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/data/60c6922a2/a68f7ce923a7453382cfd861090b7c9c/FLAGb7a68b48c [2018-12-09 04:18:26,019 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/data/60c6922a2/a68f7ce923a7453382cfd861090b7c9c [2018-12-09 04:18:26,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 04:18:26,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 04:18:26,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 04:18:26,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 04:18:26,024 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 04:18:26,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355d8d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26, skipping insertion in model container [2018-12-09 04:18:26,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 04:18:26,042 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 04:18:26,140 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:18:26,142 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 04:18:26,155 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:18:26,166 INFO L195 MainTranslator]: Completed translation [2018-12-09 04:18:26,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26 WrapperNode [2018-12-09 04:18:26,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 04:18:26,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 04:18:26,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 04:18:26,167 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 04:18:26,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 04:18:26,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 04:18:26,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 04:18:26,189 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 04:18:26,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 04:18:26,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 04:18:26,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 04:18:26,234 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 04:18:26,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:18:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/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 [2018-12-09 04:18:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 04:18:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 04:18:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 04:18:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 04:18:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 04:18:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 04:18:26,435 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 04:18:26,435 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-12-09 04:18:26,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:18:26 BoogieIcfgContainer [2018-12-09 04:18:26,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 04:18:26,435 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 04:18:26,435 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 04:18:26,442 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 04:18:26,442 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:18:26" (1/1) ... [2018-12-09 04:18:26,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:18:26,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:26,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2018-12-09 04:18:26,472 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2018-12-09 04:18:26,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 04:18:26,474 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:26,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 04:18:26,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:26,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2018-12-09 04:18:26,582 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2018-12-09 04:18:26,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 04:18:26,582 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 04:18:26,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:26,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2018-12-09 04:18:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2018-12-09 04:18:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 04:18:26,627 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:26,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 04:18:26,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 31 transitions. [2018-12-09 04:18:26,685 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2018-12-09 04:18:26,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 04:18:26,685 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 04:18:26,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2018-12-09 04:18:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2018-12-09 04:18:26,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 04:18:26,752 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:26,787 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 04:18:26,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2018-12-09 04:18:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2018-12-09 04:18:26,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 04:18:26,829 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:26,857 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 04:18:26,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:26,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2018-12-09 04:18:26,891 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2018-12-09 04:18:26,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 04:18:26,891 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:26,911 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-09 04:18:26,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:26,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2018-12-09 04:18:26,928 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2018-12-09 04:18:26,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 04:18:26,928 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-09 04:18:26,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:26,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2018-12-09 04:18:26,962 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2018-12-09 04:18:26,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 04:18:26,963 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-09 04:18:26,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:26,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2018-12-09 04:18:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2018-12-09 04:18:26,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 04:18:26,994 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-09 04:18:27,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:27,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 37 transitions. [2018-12-09 04:18:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2018-12-09 04:18:27,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 04:18:27,028 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:18:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:18:27,068 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-09 04:18:27,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:18:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2018-12-09 04:18:27,084 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2018-12-09 04:18:27,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 04:18:27,084 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2018-12-09 04:18:27,092 INFO L779 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-12-09 04:18:27,113 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 04:18:27,115 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 04:18:27,115 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 04:18:27,115 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 04:18:27,115 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 04:18:27,115 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 04:18:27,116 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 04:18:27,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 04:18:27 ImpRootNode [2018-12-09 04:18:27,116 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 04:18:27,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 04:18:27,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 04:18:27,116 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 04:18:27,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:18:26" (3/4) ... [2018-12-09 04:18:27,120 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 04:18:27,126 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-12-09 04:18:27,126 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 04:18:27,127 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 04:18:27,164 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0cdc85e2-3712-43fc-8afe-633774658187/bin-2019/ukojak/witness.graphml [2018-12-09 04:18:27,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 04:18:27,164 INFO L168 Benchmark]: Toolchain (without parser) took 1143.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 954.4 MB in the beginning and 978.4 MB in the end (delta: -24.0 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. [2018-12-09 04:18:27,166 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 04:18:27,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.64 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-09 04:18:27,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.60 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2018-12-09 04:18:27,167 INFO L168 Benchmark]: Boogie Preprocessor took 45.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-09 04:18:27,167 INFO L168 Benchmark]: RCFGBuilder took 200.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 04:18:27,167 INFO L168 Benchmark]: CodeCheck took 680.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 983.8 MB in the end (delta: 104.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 11.5 GB. [2018-12-09 04:18:27,168 INFO L168 Benchmark]: Witness Printer took 47.64 ms. Allocated memory is still 1.1 GB. Free memory was 983.8 MB in the beginning and 978.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 04:18:27,170 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 1 procedures, 26 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 12 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20480 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 15346 SolverSat, 10298 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1466 GetRequests, 1434 SyntacticMatches, 12 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 4801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 95/135 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: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.64 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.60 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 200.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * CodeCheck took 680.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 983.8 MB in the end (delta: 104.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 11.5 GB. * Witness Printer took 47.64 ms. Allocated memory is still 1.1 GB. Free memory was 983.8 MB in the beginning and 978.4 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...