./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 00:37:56,947 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 00:37:56,948 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 00:37:56,955 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 00:37:56,955 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 00:37:56,956 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 00:37:56,956 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 00:37:56,957 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 00:37:56,958 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 00:37:56,958 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 00:37:56,959 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 00:37:56,959 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 00:37:56,959 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 00:37:56,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 00:37:56,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 00:37:56,961 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 00:37:56,961 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 00:37:56,962 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 00:37:56,963 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 00:37:56,964 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 00:37:56,964 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 00:37:56,965 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 00:37:56,966 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 00:37:56,966 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 00:37:56,966 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 00:37:56,967 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 00:37:56,967 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 00:37:56,968 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 00:37:56,968 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 00:37:56,969 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 00:37:56,969 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 00:37:56,969 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 00:37:56,970 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 00:37:56,970 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 00:37:56,970 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 00:37:56,971 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 00:37:56,971 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-03 00:37:56,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 00:37:56,980 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 00:37:56,981 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 00:37:56,981 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-03 00:37:56,982 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 00:37:56,982 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 00:37:56,982 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 00:37:56,982 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-03 00:37:56,982 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 00:37:56,982 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 00:37:56,983 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 00:37:56,983 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 00:37:56,983 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 00:37:56,983 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-03 00:37:56,983 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 00:37:56,983 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 00:37:56,983 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 00:37:56,984 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-03 00:37:56,984 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-03 00:37:56,984 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 00:37:56,984 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 00:37:56,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-03 00:37:56,984 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 00:37:56,985 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 00:37:56,985 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 00:37:56,985 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-03 00:37:56,985 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 00:37:56,985 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 00:37:56,985 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_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2018-12-03 00:37:57,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 00:37:57,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 00:37:57,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 00:37:57,018 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 00:37:57,018 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 00:37:57,019 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-03 00:37:57,053 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/data/9e3da4670/b7ee442de7794ea0a25f2a701ec5590a/FLAGc6aaa6464 [2018-12-03 00:37:57,371 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 00:37:57,372 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-03 00:37:57,375 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/data/9e3da4670/b7ee442de7794ea0a25f2a701ec5590a/FLAGc6aaa6464 [2018-12-03 00:37:57,791 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/data/9e3da4670/b7ee442de7794ea0a25f2a701ec5590a [2018-12-03 00:37:57,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 00:37:57,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 00:37:57,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 00:37:57,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 00:37:57,797 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 00:37:57,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4857c57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57, skipping insertion in model container [2018-12-03 00:37:57,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 00:37:57,813 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 00:37:57,895 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 00:37:57,897 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 00:37:57,906 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 00:37:57,914 INFO L195 MainTranslator]: Completed translation [2018-12-03 00:37:57,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57 WrapperNode [2018-12-03 00:37:57,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 00:37:57,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 00:37:57,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 00:37:57,915 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 00:37:57,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 00:37:57,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 00:37:57,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 00:37:57,933 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 00:37:57,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57" (1/1) ... [2018-12-03 00:37:57,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 00:37:57,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 00:37:57,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 00:37:57,944 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 00:37:57,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:37:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-03 00:37:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 00:37:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 00:37:58,093 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 00:37:58,094 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-03 00:37:58,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:37:58 BoogieIcfgContainer [2018-12-03 00:37:58,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 00:37:58,094 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-03 00:37:58,094 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-03 00:37:58,100 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-03 00:37:58,101 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:37:58" (1/1) ... [2018-12-03 00:37:58,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:37:58,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:37:58,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-12-03 00:37:58,127 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-03 00:37:58,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-03 00:37:58,129 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:37:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:37:58,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:37:58,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:37:58,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2018-12-03 00:37:58,255 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-12-03 00:37:58,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-03 00:37:58,255 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:37:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:37:58,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:37:58,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:37:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2018-12-03 00:37:58,404 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2018-12-03 00:37:58,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-03 00:37:58,406 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:37:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:37:58,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:37:58,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:37:58,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2018-12-03 00:37:58,485 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-12-03 00:37:58,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-03 00:37:58,486 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:37:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:37:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:37:58,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:37:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2018-12-03 00:37:58,539 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2018-12-03 00:37:58,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 00:37:58,539 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:37:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:37:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:37:58,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:37:58,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2018-12-03 00:37:58,771 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-12-03 00:37:58,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 00:37:58,771 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:37:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:37:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:37:59,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:37:59,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 26 states and 38 transitions. [2018-12-03 00:37:59,115 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2018-12-03 00:37:59,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 00:37:59,115 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:37:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:37:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:37:59,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:37:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 44 transitions. [2018-12-03 00:37:59,393 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2018-12-03 00:37:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 00:37:59,394 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:37:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:37:59,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:37:59,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:37:59,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 34 states and 49 transitions. [2018-12-03 00:37:59,756 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2018-12-03 00:37:59,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-03 00:37:59,757 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:37:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:37:59,795 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:38:00,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:38:00,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 38 states and 55 transitions. [2018-12-03 00:38:00,110 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 55 transitions. [2018-12-03 00:38:00,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-03 00:38:00,111 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:38:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:38:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:38:00,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:38:00,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2018-12-03 00:38:00,436 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2018-12-03 00:38:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-03 00:38:00,436 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:38:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:38:00,500 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:38:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:38:00,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 40 states and 56 transitions. [2018-12-03 00:38:00,653 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2018-12-03 00:38:00,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-03 00:38:00,654 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:38:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:38:00,665 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:38:00,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:38:00,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2018-12-03 00:38:00,773 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-12-03 00:38:00,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-03 00:38:00,773 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:38:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:38:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:38:01,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:38:01,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 38 states and 46 transitions. [2018-12-03 00:38:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-12-03 00:38:01,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-03 00:38:01,205 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:38:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:38:01,215 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-03 00:38:01,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:38:01,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2018-12-03 00:38:01,291 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-12-03 00:38:01,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-03 00:38:01,291 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:38:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:38:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-03 00:38:01,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:38:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2018-12-03 00:38:01,382 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-12-03 00:38:01,382 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 00:38:01,383 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2018-12-03 00:38:01,388 INFO L779 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-12-03 00:38:01,431 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-03 00:38:01,433 INFO L583 CodeCheckObserver]: Invariant with dag size 18 [2018-12-03 00:38:01,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:38:01 ImpRootNode [2018-12-03 00:38:01,437 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-03 00:38:01,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 00:38:01,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 00:38:01,438 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 00:38:01,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:37:58" (3/4) ... [2018-12-03 00:38:01,440 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 00:38:01,445 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-03 00:38:01,445 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-03 00:38:01,445 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 00:38:01,469 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_02e19c12-ca78-4c9e-99cc-6ef6dfcd8d1b/bin-2019/ukojak/witness.graphml [2018-12-03 00:38:01,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 00:38:01,469 INFO L168 Benchmark]: Toolchain (without parser) took 3675.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-12-03 00:38:01,470 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 00:38:01,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.64 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 945.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-03 00:38:01,471 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.21 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 00:38:01,471 INFO L168 Benchmark]: Boogie Preprocessor took 10.57 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 00:38:01,471 INFO L168 Benchmark]: RCFGBuilder took 150.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-03 00:38:01,471 INFO L168 Benchmark]: CodeCheck took 3343.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 47.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -2.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. [2018-12-03 00:38:01,472 INFO L168 Benchmark]: Witness Printer took 31.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 00:38:01,473 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, 16 locations, 4 error locations. SAFE Result, 3.2s OverallTime, 16 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 186644 SDslu, 0 SDs, 0 SdLazy, 1088406 SolverSat, 246498 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1496 GetRequests, 1280 SyntacticMatches, 78 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8482 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 6210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 34/94 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((2147483647 < y2 && y2 <= y1 + 2147483647) && y1 <= 2147483647) || (((0 <= y1 && y1 <= 2147483647) && y2 <= 2147483647) && 0 <= y2)) || ((2147483647 < y1 && y2 <= 2147483647) && y1 <= y2 + 2147483647) * 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.64 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 945.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.21 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.57 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 150.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * CodeCheck took 3343.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 47.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -2.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. * Witness Printer took 31.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...