./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/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 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 .............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:23:25,796 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:23:25,798 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:23:25,806 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:23:25,806 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:23:25,807 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:23:25,808 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:23:25,809 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:23:25,811 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:23:25,811 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:23:25,812 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:23:25,812 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:23:25,813 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:23:25,814 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:23:25,815 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:23:25,815 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:23:25,816 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:23:25,818 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:23:25,819 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:23:25,820 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:23:25,821 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:23:25,822 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:23:25,823 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:23:25,823 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:23:25,824 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:23:25,824 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:23:25,825 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:23:25,825 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:23:25,825 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:23:25,826 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:23:25,826 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:23:25,827 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:23:25,827 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:23:25,827 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:23:25,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:23:25,828 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:23:25,828 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 08:23:25,836 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:23:25,836 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:23:25,836 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:23:25,837 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 08:23:25,837 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:23:25,837 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:23:25,837 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:23:25,837 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:23:25,837 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:23:25,837 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:23:25,838 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:23:25,838 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:23:25,838 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:23:25,838 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:23:25,838 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:23:25,838 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:23:25,838 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:23:25,838 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 08:23:25,838 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 08:23:25,838 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:23:25,839 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:23:25,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 08:23:25,839 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:23:25,839 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:23:25,839 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:23:25,839 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 08:23:25,839 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:23:25,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:23:25,839 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_447d62e6-4439-4048-8a0f-600e86fc2976/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 -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2018-11-10 08:23:25,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:23:25,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:23:25,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:23:25,871 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:23:25,871 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:23:25,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-10 08:23:25,907 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/data/221cde9fe/bfcc296888e34c3d8ace22b47b52d2b5/FLAG6c518260f [2018-11-10 08:23:26,306 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:23:26,306 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-10 08:23:26,310 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/data/221cde9fe/bfcc296888e34c3d8ace22b47b52d2b5/FLAG6c518260f [2018-11-10 08:23:26,321 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/data/221cde9fe/bfcc296888e34c3d8ace22b47b52d2b5 [2018-11-10 08:23:26,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:23:26,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:23:26,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:23:26,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:23:26,329 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:23:26,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cd11db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26, skipping insertion in model container [2018-11-10 08:23:26,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:23:26,358 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:23:26,460 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:23:26,463 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:23:26,474 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:23:26,482 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:23:26,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26 WrapperNode [2018-11-10 08:23:26,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:23:26,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:23:26,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:23:26,483 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:23:26,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:23:26,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:23:26,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:23:26,503 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:23:26,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:23:26,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:23:26,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:23:26,513 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:23:26,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:23:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 08:23:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:23:26,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:23:26,700 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:23:26,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:23:26 BoogieIcfgContainer [2018-11-10 08:23:26,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:23:26,701 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 08:23:26,701 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 08:23:26,708 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 08:23:26,708 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:23:26" (1/1) ... [2018-11-10 08:23:26,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:23:26,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:23:26,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2018-11-10 08:23:26,743 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2018-11-10 08:23:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-10 08:23:26,744 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:23:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:23:26,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:23:26,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:23:26,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2018-11-10 08:23:26,897 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2018-11-10 08:23:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 08:23:26,897 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:23:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:23:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:23:27,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:23:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2018-11-10 08:23:27,156 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2018-11-10 08:23:27,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 08:23:27,156 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:23:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:23:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:23:27,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:23:27,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2018-11-10 08:23:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2018-11-10 08:23:27,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 08:23:27,463 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:23:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:23:27,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 08:23:27,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:23:27,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2018-11-10 08:23:27,640 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2018-11-10 08:23:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 08:23:27,641 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:23:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:23:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:23:28,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:23:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2018-11-10 08:23:28,084 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-11-10 08:23:28,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 08:23:28,085 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:23:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:23:28,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 08:23:28,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:23:28,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2018-11-10 08:23:28,188 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2018-11-10 08:23:28,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 08:23:28,189 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:23:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:23:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 08:23:28,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:23:28,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2018-11-10 08:23:28,273 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2018-11-10 08:23:28,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 08:23:28,273 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2018-11-10 08:23:28,279 INFO L778 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2018-11-10 08:23:28,316 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 08:23:28,318 INFO L582 CodeCheckObserver]: Invariant with dag size 3 [2018-11-10 08:23:28,322 INFO L582 CodeCheckObserver]: Invariant with dag size 8 [2018-11-10 08:23:28,322 INFO L582 CodeCheckObserver]: Invariant with dag size 8 [2018-11-10 08:23:28,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 08:23:28 ImpRootNode [2018-11-10 08:23:28,323 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 08:23:28,323 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:23:28,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:23:28,323 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:23:28,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:23:26" (3/4) ... [2018-11-10 08:23:28,326 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 08:23:28,332 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-10 08:23:28,333 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 08:23:28,333 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 08:23:28,369 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_447d62e6-4439-4048-8a0f-600e86fc2976/bin-2019/ukojak/witness.graphml [2018-11-10 08:23:28,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:23:28,370 INFO L168 Benchmark]: Toolchain (without parser) took 2046.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -110.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-11-10 08:23:28,371 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:23:28,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.84 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:23:28,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.27 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:23:28,372 INFO L168 Benchmark]: Boogie Preprocessor took 9.85 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. [2018-11-10 08:23:28,372 INFO L168 Benchmark]: RCFGBuilder took 188.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 08:23:28,373 INFO L168 Benchmark]: CodeCheck took 1621.89 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. [2018-11-10 08:23:28,373 INFO L168 Benchmark]: Witness Printer took 46.83 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:23:28,374 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, 19 locations, 3 error locations. SAFE Result, 1.5s OverallTime, 8 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 424 SDtfs, 806 SDslu, 192 SDs, 0 SdLazy, 3894 SolverSat, 916 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 642 GetRequests, 552 SyntacticMatches, 26 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1248 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 2828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 15/19 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: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: main__i + 1 <= main__nlen && 0 <= main__i - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: main__i + 1 <= main__nlen && 0 <= main__i * 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.84 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.27 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.85 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 188.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * CodeCheck took 1621.89 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. * Witness Printer took 46.83 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...