./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/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 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb .................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 18:31:53,678 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 18:31:53,680 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 18:31:53,688 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 18:31:53,688 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 18:31:53,689 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 18:31:53,689 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 18:31:53,691 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 18:31:53,692 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 18:31:53,693 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 18:31:53,693 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 18:31:53,694 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 18:31:53,694 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 18:31:53,695 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 18:31:53,696 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 18:31:53,697 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 18:31:53,697 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 18:31:53,698 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 18:31:53,700 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 18:31:53,701 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 18:31:53,702 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 18:31:53,703 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 18:31:53,705 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 18:31:53,705 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 18:31:53,705 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 18:31:53,706 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 18:31:53,707 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 18:31:53,707 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 18:31:53,708 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 18:31:53,709 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 18:31:53,709 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 18:31:53,710 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 18:31:53,710 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 18:31:53,710 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 18:31:53,711 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 18:31:53,712 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 18:31:53,712 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 18:31:53,723 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 18:31:53,723 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 18:31:53,724 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 18:31:53,724 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 18:31:53,725 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 18:31:53,725 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 18:31:53,725 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 18:31:53,725 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 18:31:53,725 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 18:31:53,726 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 18:31:53,726 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 18:31:53,726 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 18:31:53,726 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 18:31:53,726 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 18:31:53,726 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 18:31:53,726 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 18:31:53,727 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 18:31:53,727 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 18:31:53,727 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 18:31:53,727 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 18:31:53,727 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 18:31:53,727 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 18:31:53,727 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 18:31:53,728 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 18:31:53,728 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 18:31:53,728 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 18:31:53,728 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 18:31:53,728 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 18:31:53,728 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 18:31:53,729 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_18761667-b73d-4117-8c86-359475310c5f/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 -> 4f33d015f37d4475f0ca85a8ea6311ffc3e89abb [2018-11-18 18:31:53,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 18:31:53,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 18:31:53,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 18:31:53,765 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 18:31:53,765 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 18:31:53,766 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/../../sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 18:31:53,809 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/data/ea841f955/79b334ee60a64dd0a49a06a02dbdb241/FLAG492513ac9 [2018-11-18 18:31:54,213 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 18:31:54,214 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/sv-benchmarks/c/locks/test_locks_5_true-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 18:31:54,221 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/data/ea841f955/79b334ee60a64dd0a49a06a02dbdb241/FLAG492513ac9 [2018-11-18 18:31:54,236 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/data/ea841f955/79b334ee60a64dd0a49a06a02dbdb241 [2018-11-18 18:31:54,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 18:31:54,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 18:31:54,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 18:31:54,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 18:31:54,245 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 18:31:54,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4950b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54, skipping insertion in model container [2018-11-18 18:31:54,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 18:31:54,278 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 18:31:54,437 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:31:54,439 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 18:31:54,454 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 18:31:54,466 INFO L195 MainTranslator]: Completed translation [2018-11-18 18:31:54,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54 WrapperNode [2018-11-18 18:31:54,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 18:31:54,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 18:31:54,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 18:31:54,467 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 18:31:54,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 18:31:54,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 18:31:54,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 18:31:54,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 18:31:54,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 18:31:54,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 18:31:54,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 18:31:54,509 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 18:31:54,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:31:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/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 [2018-11-18 18:31:54,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 18:31:54,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 18:31:54,858 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 18:31:54,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:31:54 BoogieIcfgContainer [2018-11-18 18:31:54,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 18:31:54,859 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 18:31:54,859 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 18:31:54,869 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 18:31:54,869 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:31:54" (1/1) ... [2018-11-18 18:31:54,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 18:31:54,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:54,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 19 states and 31 transitions. [2018-11-18 18:31:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 31 transitions. [2018-11-18 18:31:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 18:31:54,911 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:55,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2018-11-18 18:31:55,116 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2018-11-18 18:31:55,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 18:31:55,116 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:55,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2018-11-18 18:31:55,279 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2018-11-18 18:31:55,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 18:31:55,280 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:55,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:55,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2018-11-18 18:31:55,386 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2018-11-18 18:31:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 18:31:55,387 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:55,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2018-11-18 18:31:55,711 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2018-11-18 18:31:55,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 18:31:55,711 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:55,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:55,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:55,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2018-11-18 18:31:55,840 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2018-11-18 18:31:55,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 18:31:55,840 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:56,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2018-11-18 18:31:56,352 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2018-11-18 18:31:56,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 18:31:56,353 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:56,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:56,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2018-11-18 18:31:56,472 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2018-11-18 18:31:56,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 18:31:56,472 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:56,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:56,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2018-11-18 18:31:56,612 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2018-11-18 18:31:56,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 18:31:56,612 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:56,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:56,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2018-11-18 18:31:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2018-11-18 18:31:56,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 18:31:56,710 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:56,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:57,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:57,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2018-11-18 18:31:57,365 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2018-11-18 18:31:57,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 18:31:57,366 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:57,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:57,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2018-11-18 18:31:57,476 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-11-18 18:31:57,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 18:31:57,477 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2018-11-18 18:31:57,631 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2018-11-18 18:31:57,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 18:31:57,631 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:57,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:57,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2018-11-18 18:31:57,774 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2018-11-18 18:31:57,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 18:31:57,774 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:57,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:57,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2018-11-18 18:31:57,885 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2018-11-18 18:31:57,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 18:31:57,885 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 18:31:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 18:31:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 18:31:58,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 18:31:58,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2018-11-18 18:31:58,026 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2018-11-18 18:31:58,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 18:31:58,027 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2018-11-18 18:31:58,034 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 18:31:58,102 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 18:31:58,105 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 18:31:58,105 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 18:31:58,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 06:31:58 ImpRootNode [2018-11-18 18:31:58,105 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 18:31:58,106 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 18:31:58,106 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 18:31:58,106 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 18:31:58,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:31:54" (3/4) ... [2018-11-18 18:31:58,110 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 18:31:58,118 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 18:31:58,119 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 18:31:58,119 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 18:31:58,165 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_18761667-b73d-4117-8c86-359475310c5f/bin-2019/ukojak/witness.graphml [2018-11-18 18:31:58,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 18:31:58,166 INFO L168 Benchmark]: Toolchain (without parser) took 3927.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -95.7 MB). Peak memory consumption was 82.6 MB. Max. memory is 11.5 GB. [2018-11-18 18:31:58,168 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-11-18 18:31:58,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.57 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. [2018-11-18 18:31:58,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.38 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. [2018-11-18 18:31:58,169 INFO L168 Benchmark]: Boogie Preprocessor took 16.94 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. [2018-11-18 18:31:58,169 INFO L168 Benchmark]: RCFGBuilder took 350.14 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: -163.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-18 18:31:58,170 INFO L168 Benchmark]: CodeCheck took 3246.35 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.8 MB). Peak memory consumption was 88.2 MB. Max. memory is 11.5 GB. [2018-11-18 18:31:58,170 INFO L168 Benchmark]: Witness Printer took 59.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2018-11-18 18:31:58,173 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, 3.1s OverallTime, 16 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 196608 SDtfs, 116700 SDslu, 0 SDs, 0 SdLazy, 572728 SolverSat, 212700 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1324 GetRequests, 1224 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3906 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 5460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 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: 91]: 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: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 225.57 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 24.38 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 16.94 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 350.14 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: -163.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * CodeCheck took 3246.35 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.8 MB). Peak memory consumption was 88.2 MB. Max. memory is 11.5 GB. * Witness Printer took 59.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...