./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-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_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/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 d38e7f8e829b6fb879eed3e9eda17afd63dbb323 ................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 09:50:50,092 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 09:50:50,093 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 09:50:50,099 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 09:50:50,100 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 09:50:50,100 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 09:50:50,101 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 09:50:50,102 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 09:50:50,102 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 09:50:50,103 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 09:50:50,103 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 09:50:50,103 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 09:50:50,104 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 09:50:50,105 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 09:50:50,105 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 09:50:50,106 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 09:50:50,106 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 09:50:50,107 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 09:50:50,108 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 09:50:50,108 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 09:50:50,109 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 09:50:50,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 09:50:50,111 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 09:50:50,111 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 09:50:50,111 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 09:50:50,111 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 09:50:50,112 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 09:50:50,112 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 09:50:50,113 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 09:50:50,113 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 09:50:50,113 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 09:50:50,114 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 09:50:50,114 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 09:50:50,114 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 09:50:50,115 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 09:50:50,115 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 09:50:50,115 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-02 09:50:50,122 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 09:50:50,122 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 09:50:50,123 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 09:50:50,123 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 09:50:50,123 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 09:50:50,124 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 09:50:50,124 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 09:50:50,124 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 09:50:50,124 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 09:50:50,124 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 09:50:50,124 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 09:50:50,124 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 09:50:50,124 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 09:50:50,125 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 09:50:50,125 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 09:50:50,125 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 09:50:50,125 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 09:50:50,125 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 09:50:50,125 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 09:50:50,125 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 09:50:50,125 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 09:50:50,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 09:50:50,126 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 09:50:50,126 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 09:50:50,126 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 09:50:50,126 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 09:50:50,126 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 09:50:50,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 09:50:50,126 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_11128aa8-479d-47ed-8b1b-6f06d2f08551/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 -> d38e7f8e829b6fb879eed3e9eda17afd63dbb323 [2018-12-02 09:50:50,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 09:50:50,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 09:50:50,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 09:50:50,157 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 09:50:50,157 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 09:50:50,158 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c [2018-12-02 09:50:50,202 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/data/4dc5d1319/16fd3e1083ea42a0a7ef93603784cb00/FLAG1bbd29c75 [2018-12-02 09:50:50,519 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 09:50:50,519 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5_true-termination_true-no-overflow.c [2018-12-02 09:50:50,523 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/data/4dc5d1319/16fd3e1083ea42a0a7ef93603784cb00/FLAG1bbd29c75 [2018-12-02 09:50:50,966 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/data/4dc5d1319/16fd3e1083ea42a0a7ef93603784cb00 [2018-12-02 09:50:50,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 09:50:50,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 09:50:50,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 09:50:50,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 09:50:50,972 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 09:50:50,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:50:50" (1/1) ... [2018-12-02 09:50:50,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c93d57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:50, skipping insertion in model container [2018-12-02 09:50:50,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:50:50" (1/1) ... [2018-12-02 09:50:50,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 09:50:50,985 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 09:50:51,066 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 09:50:51,068 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 09:50:51,076 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 09:50:51,083 INFO L195 MainTranslator]: Completed translation [2018-12-02 09:50:51,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51 WrapperNode [2018-12-02 09:50:51,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 09:50:51,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 09:50:51,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 09:50:51,084 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 09:50:51,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51" (1/1) ... [2018-12-02 09:50:51,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51" (1/1) ... [2018-12-02 09:50:51,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 09:50:51,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 09:50:51,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 09:50:51,101 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 09:50:51,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51" (1/1) ... [2018-12-02 09:50:51,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51" (1/1) ... [2018-12-02 09:50:51,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51" (1/1) ... [2018-12-02 09:50:51,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51" (1/1) ... [2018-12-02 09:50:51,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51" (1/1) ... [2018-12-02 09:50:51,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51" (1/1) ... [2018-12-02 09:50:51,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51" (1/1) ... [2018-12-02 09:50:51,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 09:50:51,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 09:50:51,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 09:50:51,111 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 09:50:51,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:50:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/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 [2018-12-02 09:50:51,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 09:50:51,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 09:50:51,262 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 09:50:51,263 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 09:50:51,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:50:51 BoogieIcfgContainer [2018-12-02 09:50:51,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 09:50:51,263 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 09:50:51,263 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 09:50:51,269 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 09:50:51,269 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:50:51" (1/1) ... [2018-12-02 09:50:51,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:50:51,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:51,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-12-02 09:50:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-12-02 09:50:51,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 09:50:51,299 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:51,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:51,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-12-02 09:50:51,405 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-02 09:50:51,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 09:50:51,406 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:51,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:51,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2018-12-02 09:50:51,529 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2018-12-02 09:50:51,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 09:50:51,530 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:51,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:51,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:51,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2018-12-02 09:50:51,635 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2018-12-02 09:50:51,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-02 09:50:51,635 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:51,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:51,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2018-12-02 09:50:51,835 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2018-12-02 09:50:51,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 09:50:51,836 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:51,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:51,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2018-12-02 09:50:51,868 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2018-12-02 09:50:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 09:50:51,870 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:51,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:51,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:51,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 31 states and 44 transitions. [2018-12-02 09:50:51,935 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2018-12-02 09:50:51,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 09:50:51,935 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:52,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:52,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2018-12-02 09:50:52,368 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2018-12-02 09:50:52,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 09:50:52,368 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:52,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:52,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:52,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 35 states and 54 transitions. [2018-12-02 09:50:52,547 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2018-12-02 09:50:52,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 09:50:52,548 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:52,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:52,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 55 transitions. [2018-12-02 09:50:52,657 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2018-12-02 09:50:52,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 09:50:52,658 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:52,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 09:50:52,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:52,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 40 states and 61 transitions. [2018-12-02 09:50:52,938 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 61 transitions. [2018-12-02 09:50:52,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 09:50:52,938 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:52,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 09:50:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 40 states and 60 transitions. [2018-12-02 09:50:53,037 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 60 transitions. [2018-12-02 09:50:53,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 09:50:53,038 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:53,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:53,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 70 transitions. [2018-12-02 09:50:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2018-12-02 09:50:53,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 09:50:53,508 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:53,520 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:53,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 48 states and 71 transitions. [2018-12-02 09:50:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 71 transitions. [2018-12-02 09:50:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 09:50:53,674 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 09:50:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:50:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:50:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 09:50:54,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-12-02 09:50:54,243 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-02 09:50:54,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 09:50:54,243 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 15 iterations. [2018-12-02 09:50:54,249 INFO L779 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2018-12-02 09:50:54,327 INFO L583 CodeCheckObserver]: Invariant with dag size 17 [2018-12-02 09:50:54,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:50:54 ImpRootNode [2018-12-02 09:50:54,334 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 09:50:54,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 09:50:54,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 09:50:54,334 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 09:50:54,335 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:50:51" (3/4) ... [2018-12-02 09:50:54,337 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 09:50:54,343 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 09:50:54,343 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 09:50:54,343 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 09:50:54,369 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_11128aa8-479d-47ed-8b1b-6f06d2f08551/bin-2019/ukojak/witness.graphml [2018-12-02 09:50:54,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 09:50:54,370 INFO L168 Benchmark]: Toolchain (without parser) took 3401.32 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 256.4 MB). Free memory was 960.3 MB in the beginning and 1.2 GB in the end (delta: -279.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:50:54,371 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:50:54,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 114.28 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 09:50:54,371 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.00 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:50:54,372 INFO L168 Benchmark]: Boogie Preprocessor took 10.04 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 944.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 09:50:54,372 INFO L168 Benchmark]: RCFGBuilder took 151.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -111.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-02 09:50:54,373 INFO L168 Benchmark]: CodeCheck took 3070.44 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 177.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -186.6 MB). Peak memory consumption was 414.9 MB. Max. memory is 11.5 GB. [2018-12-02 09:50:54,373 INFO L168 Benchmark]: Witness Printer took 35.57 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2018-12-02 09:50:54,376 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, 18 locations, 6 error locations. SAFE Result, 2.9s OverallTime, 15 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 80322 SDslu, 0 SDs, 0 SdLazy, 404084 SolverSat, 67402 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1173 GetRequests, 968 SyntacticMatches, 75 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9261 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 8733 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 10/42 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: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((2 <= y && y <= 2) && x <= y + 2147483645) || ((x <= y + 2147483646 && y < 2) && 1 <= y) * 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 114.28 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 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 17.00 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.04 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 944.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 151.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -111.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * CodeCheck took 3070.44 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 177.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -186.6 MB). Peak memory consumption was 414.9 MB. Max. memory is 11.5 GB. * Witness Printer took 35.57 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...