./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/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 f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 ...................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:34:37,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:34:37,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:34:37,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:34:37,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:34:37,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:34:37,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:34:37,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:34:37,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:34:37,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:34:37,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:34:37,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:34:37,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:34:37,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:34:37,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:34:37,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:34:37,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:34:37,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:34:37,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:34:37,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:34:37,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:34:37,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:34:37,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:34:37,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:34:37,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:34:37,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:34:37,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:34:37,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:34:37,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:34:37,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:34:37,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:34:37,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:34:37,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:34:37,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:34:37,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:34:37,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:34:37,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:34:37,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:34:37,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:34:37,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:34:37,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:34:37,792 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:34:37,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:34:37,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:34:37,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:34:37,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:34:37,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:34:37,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:34:37,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:34:37,818 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:34:37,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:34:37,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:34:37,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:34:37,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:34:37,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:34:37,819 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:34:37,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:34:37,820 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:34:37,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:34:37,820 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:34:37,820 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:34:37,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:34:37,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:34:37,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:34:37,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:34:37,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:34:37,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:34:37,822 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:34:37,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:34:37,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:34:37,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 [2020-11-28 04:34:38,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:34:38,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:34:38,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:34:38,067 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:34:38,068 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:34:38,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2020-11-28 04:34:38,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/data/aadc4e6d7/22f7a58ff98c49f697f93e0a7e9beeda/FLAG1337f2594 [2020-11-28 04:34:38,512 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:34:38,513 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2020-11-28 04:34:38,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/data/aadc4e6d7/22f7a58ff98c49f697f93e0a7e9beeda/FLAG1337f2594 [2020-11-28 04:34:38,951 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/data/aadc4e6d7/22f7a58ff98c49f697f93e0a7e9beeda [2020-11-28 04:34:38,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:34:38,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:34:38,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:34:38,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:34:38,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:34:38,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:34:38" (1/1) ... [2020-11-28 04:34:38,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6422abc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:38, skipping insertion in model container [2020-11-28 04:34:38,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:34:38" (1/1) ... [2020-11-28 04:34:38,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:34:38,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:34:39,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:34:39,169 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:34:39,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:34:39,204 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:34:39,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39 WrapperNode [2020-11-28 04:34:39,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:34:39,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:34:39,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:34:39,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:34:39,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:34:39,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:34:39,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:34:39,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:34:39,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:34:39,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:34:39,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:34:39,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:34:39,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/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 [2020-11-28 04:34:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:34:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:34:39,588 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:34:39,588 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:34:39,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:39 BoogieIcfgContainer [2020-11-28 04:34:39,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:34:39,591 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:34:39,591 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:34:39,601 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:34:39,601 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:39" (1/1) ... [2020-11-28 04:34:39,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:34:39,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:39,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:34:39,644 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:34:39,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:34:39,646 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:34:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:39,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-28 04:34:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-28 04:34:39,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:34:39,907 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:34:40,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2020-11-28 04:34:40,075 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-11-28 04:34:40,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:34:40,077 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:40,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:34:40,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:40,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-28 04:34:40,310 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-28 04:34:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:34:40,310 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:40,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:34:40,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:40,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2020-11-28 04:34:40,529 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-11-28 04:34:40,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:34:40,530 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:34:40,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2020-11-28 04:34:40,683 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2020-11-28 04:34:40,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:34:40,684 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:40,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:34:40,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:40,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-11-28 04:34:40,861 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-11-28 04:34:40,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:34:40,862 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 04:34:41,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:41,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2020-11-28 04:34:41,533 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-28 04:34:41,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:34:41,533 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:41,572 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 04:34:41,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:41,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2020-11-28 04:34:41,861 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2020-11-28 04:34:41,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:34:41,862 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:41,886 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:34:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:42,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-11-28 04:34:42,052 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-11-28 04:34:42,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:34:42,053 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:42,075 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:34:42,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:42,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-11-28 04:34:42,271 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-28 04:34:42,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:34:42,272 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2020-11-28 04:34:42,278 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:34:42,405 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:34:42,408 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-11-28 04:34:42,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:34:42 ImpRootNode [2020-11-28 04:34:42,414 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:34:42,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:34:42,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:34:42,415 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:34:42,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:39" (3/4) ... [2020-11-28 04:34:42,419 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:34:42,427 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 04:34:42,427 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:34:42,427 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:34:42,469 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_abc1199b-f693-4062-ac53-2396dadc5e61/bin/ukojak/witness.graphml [2020-11-28 04:34:42,470 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:34:42,472 INFO L168 Benchmark]: Toolchain (without parser) took 3515.95 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 67.7 MB in the beginning and 61.3 MB in the end (delta: 6.4 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:42,473 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 56.0 MB in the beginning and 56.0 MB in the end (delta: 49.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:34:42,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.04 ms. Allocated memory is still 96.5 MB. Free memory was 67.7 MB in the beginning and 74.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:42,475 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.03 ms. Allocated memory is still 96.5 MB. Free memory was 74.0 MB in the beginning and 72.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:34:42,475 INFO L168 Benchmark]: Boogie Preprocessor took 27.53 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 71.8 MB in the end (delta: 959.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:34:42,476 INFO L168 Benchmark]: RCFGBuilder took 322.74 ms. Allocated memory is still 96.5 MB. Free memory was 71.8 MB in the beginning and 61.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:42,477 INFO L168 Benchmark]: CodeCheck took 2823.23 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.1 MB in the beginning and 63.4 MB in the end (delta: -2.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:42,478 INFO L168 Benchmark]: Witness Printer took 55.03 ms. Allocated memory is still 117.4 MB. Free memory was 63.4 MB in the beginning and 61.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:42,482 INFO L339 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, 12 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2048 SDtfs, 4162 SDslu, 0 SDs, 0 SdLazy, 21786 SolverSat, 4952 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 697 GetRequests, 593 SyntacticMatches, 34 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2032 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 1745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 35/42 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 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: 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (1 <= y && x <= 1073741823) && 0 <= x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 56.0 MB in the beginning and 56.0 MB in the end (delta: 49.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 246.04 ms. Allocated memory is still 96.5 MB. Free memory was 67.7 MB in the beginning and 74.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.03 ms. Allocated memory is still 96.5 MB. Free memory was 74.0 MB in the beginning and 72.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.53 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 71.8 MB in the end (delta: 959.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 322.74 ms. Allocated memory is still 96.5 MB. Free memory was 71.8 MB in the beginning and 61.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 2823.23 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.1 MB in the beginning and 63.4 MB in the end (delta: -2.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * Witness Printer took 55.03 ms. Allocated memory is still 117.4 MB. Free memory was 63.4 MB in the beginning and 61.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...