./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 ...................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:20:53,105 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:20:53,106 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:20:53,115 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:20:53,115 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:20:53,116 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:20:53,117 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:20:53,118 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:20:53,119 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:20:53,120 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:20:53,120 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:20:53,121 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:20:53,121 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:20:53,122 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:20:53,123 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:20:53,123 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:20:53,124 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:20:53,125 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:20:53,126 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:20:53,128 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:20:53,128 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:20:53,129 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:20:53,131 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:20:53,131 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:20:53,131 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:20:53,132 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:20:53,132 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:20:53,133 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:20:53,134 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:20:53,134 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:20:53,135 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:20:53,135 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:20:53,135 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:20:53,135 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:20:53,136 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:20:53,137 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:20:53,137 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-23 13:20:53,147 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:20:53,147 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:20:53,148 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:20:53,148 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 13:20:53,148 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:20:53,148 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:20:53,149 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:20:53,149 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:20:53,149 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:20:53,149 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:20:53,149 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:20:53,149 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:20:53,149 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:20:53,150 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 13:20:53,150 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:20:53,150 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:20:53,150 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:20:53,150 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 13:20:53,150 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 13:20:53,152 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:20:53,152 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:20:53,153 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 13:20:53,153 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:20:53,153 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:20:53,153 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:20:53,153 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 13:20:53,153 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:20:53,153 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:20:53,154 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_fe14b897-d5e0-445f-887f-8d40364f517f/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 -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2018-11-23 13:20:53,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:20:53,183 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:20:53,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:20:53,186 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:20:53,187 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:20:53,187 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-11-23 13:20:53,222 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/data/439e7e2e2/b089eee9a23f42c4b88ced22d5d89352/FLAG49320e4b1 [2018-11-23 13:20:53,611 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:20:53,612 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-11-23 13:20:53,615 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/data/439e7e2e2/b089eee9a23f42c4b88ced22d5d89352/FLAG49320e4b1 [2018-11-23 13:20:53,623 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/data/439e7e2e2/b089eee9a23f42c4b88ced22d5d89352 [2018-11-23 13:20:53,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:20:53,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:20:53,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:20:53,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:20:53,630 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:20:53,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c8d80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53, skipping insertion in model container [2018-11-23 13:20:53,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:20:53,646 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:20:53,744 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:20:53,746 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:20:53,755 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:20:53,763 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:20:53,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53 WrapperNode [2018-11-23 13:20:53,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:20:53,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:20:53,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:20:53,764 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:20:53,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:20:53,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:20:53,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:20:53,790 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:20:53,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53" (1/1) ... [2018-11-23 13:20:53,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:20:53,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:20:53,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:20:53,806 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:20:53,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:20:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/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 [2018-11-23 13:20:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:20:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:20:54,018 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:20:54,018 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 13:20:54,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:54 BoogieIcfgContainer [2018-11-23 13:20:54,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:20:54,019 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 13:20:54,019 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 13:20:54,029 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 13:20:54,029 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:54" (1/1) ... [2018-11-23 13:20:54,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:20:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:54,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-11-23 13:20:54,071 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-23 13:20:54,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-23 13:20:54,073 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 13:20:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:20:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:20:54,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:54,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2018-11-23 13:20:54,218 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2018-11-23 13:20:54,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-23 13:20:54,219 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 13:20:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:20:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:20:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:54,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-11-23 13:20:54,401 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-11-23 13:20:54,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 13:20:54,403 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 13:20:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:20:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:20:54,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:54,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2018-11-23 13:20:54,474 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2018-11-23 13:20:54,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 13:20:54,474 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 13:20:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:20:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:20:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:54,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2018-11-23 13:20:54,612 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2018-11-23 13:20:54,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 13:20:54,613 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 13:20:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:20:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 13:20:54,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:54,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2018-11-23 13:20:54,751 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2018-11-23 13:20:54,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 13:20:54,752 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 13:20:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:20:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:20:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:54,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2018-11-23 13:20:54,855 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2018-11-23 13:20:54,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 13:20:54,855 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 13:20:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:20:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 13:20:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:55,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2018-11-23 13:20:55,001 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2018-11-23 13:20:55,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 13:20:55,002 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 13:20:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:20:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 13:20:55,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:55,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2018-11-23 13:20:55,220 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2018-11-23 13:20:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 13:20:55,221 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 13:20:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:20:55,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:20:55,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:55,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2018-11-23 13:20:55,322 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2018-11-23 13:20:55,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 13:20:55,322 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 13:20:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:20:55,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 13:20:55,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 13:20:55,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-11-23 13:20:55,477 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-11-23 13:20:55,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:20:55,477 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2018-11-23 13:20:55,484 INFO L775 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-23 13:20:55,506 INFO L579 CodeCheckObserver]: Invariant with dag size 6 [2018-11-23 13:20:55,512 INFO L579 CodeCheckObserver]: Invariant with dag size 10 [2018-11-23 13:20:55,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:20:55 ImpRootNode [2018-11-23 13:20:55,513 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 13:20:55,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:20:55,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:20:55,514 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:20:55,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:20:54" (3/4) ... [2018-11-23 13:20:55,517 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:20:55,524 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 13:20:55,524 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 13:20:55,525 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 13:20:55,552 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fe14b897-d5e0-445f-887f-8d40364f517f/bin-2019/ukojak/witness.graphml [2018-11-23 13:20:55,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:20:55,553 INFO L168 Benchmark]: Toolchain (without parser) took 1926.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 959.1 MB in the beginning and 793.7 MB in the end (delta: 165.4 MB). Peak memory consumption was 273.9 MB. Max. memory is 11.5 GB. [2018-11-23 13:20:55,554 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-11-23 13:20:55,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.63 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:20:55,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.27 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:20:55,555 INFO L168 Benchmark]: Boogie Preprocessor took 16.00 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:20:55,556 INFO L168 Benchmark]: RCFGBuilder took 212.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-23 13:20:55,558 INFO L168 Benchmark]: CodeCheck took 1494.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 793.7 MB in the end (delta: 297.7 MB). Peak memory consumption was 297.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:20:55,558 INFO L168 Benchmark]: Witness Printer took 38.89 ms. Allocated memory is still 1.1 GB. Free memory is still 793.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:20:55,560 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, 15 locations, 4 error locations. SAFE Result, 1.4s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1024 SDtfs, 4948 SDslu, 1024 SDs, 0 SdLazy, 24964 SolverSat, 5896 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 624 GetRequests, 525 SyntacticMatches, 25 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2225 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 991 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 10/14 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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: 17]: Loop Invariant Derived loop invariant: i <= 2147483647 && N <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((j <= 2147483647 && 1 <= i) && i <= 2147483647) && N <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.63 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.27 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.00 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 212.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 1494.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 793.7 MB in the end (delta: 297.7 MB). Peak memory consumption was 297.7 MB. Max. memory is 11.5 GB. * Witness Printer took 38.89 ms. Allocated memory is still 1.1 GB. Free memory is still 793.7 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...