./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-lit/gj2007b_true-unreach-call_true-termination.c.i --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_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007b_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/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 1e17546c38a51643b6e392ce04436e766214299e ............................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:47:39,949 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:47:39,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:47:39,959 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:47:39,959 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:47:39,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:47:39,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:47:39,962 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:47:39,969 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:47:39,977 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:47:39,978 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:47:39,978 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:47:39,979 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:47:39,979 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:47:39,980 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:47:39,981 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:47:39,981 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:47:39,986 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:47:39,988 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:47:39,989 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:47:39,992 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:47:39,993 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:47:39,994 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:47:39,994 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:47:39,995 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:47:39,995 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:47:39,996 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:47:39,996 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:47:39,997 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:47:39,999 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:47:39,999 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:47:39,999 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:47:40,000 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:47:40,000 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:47:40,000 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:47:40,001 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:47:40,001 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 23:47:40,013 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:47:40,013 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:47:40,014 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:47:40,014 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:47:40,014 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:47:40,014 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:47:40,015 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:47:40,015 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:47:40,015 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:47:40,015 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:47:40,015 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:47:40,015 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:47:40,015 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:47:40,015 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:47:40,016 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:47:40,016 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:47:40,016 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:47:40,018 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 23:47:40,018 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 23:47:40,018 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:47:40,018 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:47:40,018 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 23:47:40,018 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:47:40,018 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:47:40,019 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:47:40,019 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 23:47:40,019 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:47:40,019 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:47:40,019 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_71b7f8a1-343b-4ac5-9823-1beb7b123e79/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 -> 1e17546c38a51643b6e392ce04436e766214299e [2018-10-26 23:47:40,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:47:40,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:47:40,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:47:40,072 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:47:40,072 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:47:40,072 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/../../sv-benchmarks/c/loop-lit/gj2007b_true-unreach-call_true-termination.c.i [2018-10-26 23:47:40,114 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/data/aba3b8041/263d66d7b7f641d6b1411f89d5c4b092/FLAG3ecdf8296 [2018-10-26 23:47:40,478 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:47:40,479 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/sv-benchmarks/c/loop-lit/gj2007b_true-unreach-call_true-termination.c.i [2018-10-26 23:47:40,484 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/data/aba3b8041/263d66d7b7f641d6b1411f89d5c4b092/FLAG3ecdf8296 [2018-10-26 23:47:40,496 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/data/aba3b8041/263d66d7b7f641d6b1411f89d5c4b092 [2018-10-26 23:47:40,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:47:40,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:47:40,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:47:40,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:47:40,503 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:47:40,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd6758f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40, skipping insertion in model container [2018-10-26 23:47:40,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:47:40,530 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:47:40,644 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:47:40,646 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:47:40,656 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:47:40,668 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:47:40,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40 WrapperNode [2018-10-26 23:47:40,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:47:40,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:47:40,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:47:40,669 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:47:40,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:47:40,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:47:40,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:47:40,695 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:47:40,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40" (1/1) ... [2018-10-26 23:47:40,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:47:40,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:47:40,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:47:40,708 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:47:40,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:47:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/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 [2018-10-26 23:47:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:47:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:47:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:47:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:47:41,359 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:47:41,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:47:41 BoogieIcfgContainer [2018-10-26 23:47:41,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:47:41,360 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 23:47:41,360 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 23:47:41,373 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 23:47:41,373 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:47:41" (1/1) ... [2018-10-26 23:47:41,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:47:41,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:47:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2018-10-26 23:47:41,425 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-10-26 23:47:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-26 23:47:41,429 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:47:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:47:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:47:41,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:47:41,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2018-10-26 23:47:41,516 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-10-26 23:47:41,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 23:47:41,516 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:47:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:47:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:47:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:47:41,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-10-26 23:47:41,718 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-10-26 23:47:41,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 23:47:41,723 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:47:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:47:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:47:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:47:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 17 transitions. [2018-10-26 23:47:42,141 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-10-26 23:47:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 23:47:42,141 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:47:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:47:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:47:43,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:47:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 26 transitions. [2018-10-26 23:47:43,109 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2018-10-26 23:47:43,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 23:47:43,110 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:47:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:47:43,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:47:43,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:47:43,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 15 states and 21 transitions. [2018-10-26 23:47:43,684 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. [2018-10-26 23:47:43,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:47:43,685 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2018-10-26 23:47:43,693 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-10-26 23:47:43,736 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 23:47:43,738 INFO L582 CodeCheckObserver]: Invariant with dag size 14 [2018-10-26 23:47:43,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 11:47:43 ImpRootNode [2018-10-26 23:47:43,744 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 23:47:43,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:47:43,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:47:43,745 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:47:43,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:47:41" (3/4) ... [2018-10-26 23:47:43,748 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:47:43,753 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 23:47:43,756 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-10-26 23:47:43,757 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 23:47:43,757 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 23:47:43,789 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_71b7f8a1-343b-4ac5-9823-1beb7b123e79/bin-2019/ukojak/witness.graphml [2018-10-26 23:47:43,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:47:43,790 INFO L168 Benchmark]: Toolchain (without parser) took 3291.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 961.8 MB in the beginning and 905.1 MB in the end (delta: 56.7 MB). Peak memory consumption was 190.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:47:43,792 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:47:43,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.61 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:47:43,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.01 ms. Allocated memory is still 1.0 GB. Free memory is still 951.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:47:43,793 INFO L168 Benchmark]: Boogie Preprocessor took 12.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 948.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:47:43,794 INFO L168 Benchmark]: RCFGBuilder took 651.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:47:43,794 INFO L168 Benchmark]: CodeCheck took 2384.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 907.8 MB in the end (delta: 212.1 MB). Peak memory consumption was 212.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:47:43,795 INFO L168 Benchmark]: Witness Printer took 44.84 ms. Allocated memory is still 1.2 GB. Free memory was 907.8 MB in the beginning and 905.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:47:43,798 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 320 SDtfs, 120 SDslu, 128 SDs, 0 SdLazy, 650 SolverSat, 194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 458 GetRequests, 400 SyntacticMatches, 8 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1771 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 2/8 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: 5]: 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: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((0 < m && 0 <= x) && m + 1 <= n) || ((m <= 0 && 0 <= m) && 0 <= x) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.61 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.01 ms. Allocated memory is still 1.0 GB. Free memory is still 951.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 948.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 651.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * CodeCheck took 2384.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 907.8 MB in the end (delta: 212.1 MB). Peak memory consumption was 212.1 MB. Max. memory is 11.5 GB. * Witness Printer took 44.84 ms. Allocated memory is still 1.2 GB. Free memory was 907.8 MB in the beginning and 905.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...