./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/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 554582d6fc3de8e87f5dd30e5019302b6e1b96be ................................................................................................................................................................................................................................................................................ 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 07:46:43,840 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:46:43,842 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:46:43,850 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:46:43,850 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:46:43,851 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:46:43,852 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:46:43,853 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:46:43,854 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:46:43,855 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:46:43,856 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:46:43,856 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:46:43,857 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:46:43,858 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:46:43,859 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:46:43,859 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:46:43,860 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:46:43,861 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:46:43,863 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:46:43,864 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:46:43,865 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:46:43,866 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:46:43,868 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:46:43,868 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:46:43,868 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:46:43,869 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:46:43,870 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:46:43,870 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:46:43,871 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:46:43,872 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:46:43,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:46:43,873 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:46:43,873 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:46:43,873 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:46:43,874 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:46:43,874 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:46:43,874 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-10 07:46:43,887 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:46:43,887 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:46:43,888 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:46:43,888 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:46:43,888 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:46:43,888 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:46:43,889 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:46:43,889 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 07:46:43,889 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:46:43,889 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:46:43,889 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:46:43,889 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:46:43,890 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:46:43,890 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 07:46:43,890 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:46:43,890 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:46:43,890 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 07:46:43,890 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 07:46:43,890 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:46:43,891 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:46:43,891 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 07:46:43,891 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:46:43,891 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:46:43,891 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:46:43,891 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 07:46:43,892 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:46:43,892 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:46:43,892 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_826cd829-62b2-42e1-9b48-da6fded7819a/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 -> 554582d6fc3de8e87f5dd30e5019302b6e1b96be [2018-11-10 07:46:43,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:46:43,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:46:43,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:46:43,933 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:46:43,933 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:46:43,933 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c [2018-11-10 07:46:43,976 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/data/5dd81116a/c456169cd97a4f5f9c47a062938b678b/FLAG6a68f27ee [2018-11-10 07:46:44,330 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:46:44,330 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c [2018-11-10 07:46:44,336 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/data/5dd81116a/c456169cd97a4f5f9c47a062938b678b/FLAG6a68f27ee [2018-11-10 07:46:44,348 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/data/5dd81116a/c456169cd97a4f5f9c47a062938b678b [2018-11-10 07:46:44,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:46:44,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:46:44,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:46:44,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:46:44,355 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:46:44,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ca410a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44, skipping insertion in model container [2018-11-10 07:46:44,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:46:44,379 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:46:44,499 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:46:44,502 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:46:44,513 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:46:44,523 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:46:44,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44 WrapperNode [2018-11-10 07:46:44,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:46:44,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:46:44,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:46:44,524 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:46:44,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:46:44,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:46:44,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:46:44,547 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:46:44,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:46:44,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:46:44,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:46:44,562 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:46:44,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:46:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/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 07:46:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure p [2018-11-10 07:46:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2018-11-10 07:46:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:46:44,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:46:44,799 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:46:44,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:46:44 BoogieIcfgContainer [2018-11-10 07:46:44,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:46:44,801 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 07:46:44,801 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 07:46:44,812 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 07:46:44,812 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:46:44" (1/1) ... [2018-11-10 07:46:44,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:46:44,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:44,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2018-11-10 07:46:44,852 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-11-10 07:46:44,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 07:46:44,853 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:46:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:46:44,991 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 07:46:45,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:45,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 32 transitions. [2018-11-10 07:46:45,071 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-11-10 07:46:45,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 07:46:45,072 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:46:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:46:45,111 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 07:46:45,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 31 transitions. [2018-11-10 07:46:45,172 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-11-10 07:46:45,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 07:46:45,177 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:46:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:46:45,232 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 07:46:45,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:45,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 38 transitions. [2018-11-10 07:46:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2018-11-10 07:46:45,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 07:46:45,528 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:46:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:46:45,575 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 07:46:45,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:45,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 37 transitions. [2018-11-10 07:46:45,649 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2018-11-10 07:46:45,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 07:46:45,649 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:46:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:46:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:46:45,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:45,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 41 transitions. [2018-11-10 07:46:45,832 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2018-11-10 07:46:45,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 07:46:45,833 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:46:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:46:45,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:46:46,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:46,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 40 transitions. [2018-11-10 07:46:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2018-11-10 07:46:46,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 07:46:46,009 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:46:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:46:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:46:46,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:46,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 51 transitions. [2018-11-10 07:46:46,742 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2018-11-10 07:46:46,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 07:46:46,742 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:46:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:46:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:46:46,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:46,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 42 transitions. [2018-11-10 07:46:46,943 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2018-11-10 07:46:46,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 07:46:46,944 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:46:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:46:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 07:46:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:47,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 34 states and 46 transitions. [2018-11-10 07:46:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2018-11-10 07:46:47,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 07:46:47,328 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:46:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:46:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:46:47,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:46:47,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 19 states and 23 transitions. [2018-11-10 07:46:47,949 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-11-10 07:46:47,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:46:47,950 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2018-11-10 07:46:47,956 INFO L778 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-10 07:46:47,994 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 07:46:47,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 07:46:47 ImpRootNode [2018-11-10 07:46:47,996 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 07:46:47,997 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:46:47,997 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:46:47,997 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:46:47,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:46:44" (3/4) ... [2018-11-10 07:46:48,000 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:46:48,005 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure p [2018-11-10 07:46:48,008 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-10 07:46:48,008 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-10 07:46:48,009 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 07:46:48,040 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_826cd829-62b2-42e1-9b48-da6fded7819a/bin-2019/ukojak/witness.graphml [2018-11-10 07:46:48,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:46:48,041 INFO L168 Benchmark]: Toolchain (without parser) took 3690.81 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 283.1 MB). Free memory was 959.1 MB in the beginning and 1.3 GB in the end (delta: -299.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:46:48,042 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:46:48,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.93 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 947.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:46:48,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.80 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:46:48,043 INFO L168 Benchmark]: Boogie Preprocessor took 13.93 ms. Allocated memory is still 1.0 GB. Free memory was 947.2 MB in the beginning and 944.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:46:48,044 INFO L168 Benchmark]: RCFGBuilder took 238.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -216.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:46:48,044 INFO L168 Benchmark]: CodeCheck took 3195.79 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.5 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -97.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:46:48,044 INFO L168 Benchmark]: Witness Printer took 44.04 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:46:48,047 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, 26 locations, 4 error locations. SAFE Result, 3.1s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2844 SDtfs, 6244 SDslu, 0 SDs, 0 SdLazy, 29324 SolverSat, 7132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 954 GetRequests, 792 SyntacticMatches, 42 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5541 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 3023 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 12/28 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: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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: 28]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.93 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 947.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.80 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.93 ms. Allocated memory is still 1.0 GB. Free memory was 947.2 MB in the beginning and 944.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 238.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -216.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * CodeCheck took 3195.79 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.5 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -97.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. * Witness Printer took 44.04 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...