./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.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_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/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 e09e2fe0d9f978fd259d1d805e514754ab2def67 .............................................................................................................................................................................................................................................................. 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 04:39:16,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:39:16,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:39:16,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:39:16,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:39:16,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:39:16,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:39:16,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:39:16,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:39:16,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:39:16,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:39:16,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:39:16,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:39:16,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:39:16,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:39:16,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:39:16,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:39:16,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:39:16,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:39:16,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:39:16,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:39:16,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:39:16,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:39:16,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:39:16,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:39:16,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:39:16,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:39:16,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:39:16,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:39:16,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:39:16,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:39:16,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:39:16,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:39:16,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:39:16,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:39:16,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:39:16,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:39:16,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:39:16,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:39:16,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:39:16,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:39:16,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:39:16,502 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:39:16,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:39:16,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:39:16,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:39:16,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:39:16,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:39:16,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:39:16,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:39:16,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:39:16,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:39:16,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:39:16,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:39:16,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:39:16,508 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:39:16,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:39:16,508 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:39:16,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:39:16,508 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:39:16,509 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:39:16,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:39:16,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:39:16,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:39:16,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:39:16,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:39:16,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:39:16,510 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:39:16,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:39:16,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:39:16,511 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_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e09e2fe0d9f978fd259d1d805e514754ab2def67 [2020-11-28 04:39:16,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:39:16,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:39:16,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:39:16,805 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:39:16,806 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:39:16,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c [2020-11-28 04:39:16,886 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/data/b1b7fc42d/84f79c08a11c416c978f1901a8fc67a2/FLAG618f59dba [2020-11-28 04:39:17,353 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:39:17,354 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c [2020-11-28 04:39:17,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/data/b1b7fc42d/84f79c08a11c416c978f1901a8fc67a2/FLAG618f59dba [2020-11-28 04:39:17,740 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/data/b1b7fc42d/84f79c08a11c416c978f1901a8fc67a2 [2020-11-28 04:39:17,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:39:17,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:39:17,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:17,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:39:17,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:39:17,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:17,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e12f657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17, skipping insertion in model container [2020-11-28 04:39:17,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:17,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:39:17,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:39:17,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:17,910 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:39:17,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:17,967 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:39:17,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17 WrapperNode [2020-11-28 04:39:17,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:17,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:17,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:39:17,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:39:17,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:17,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:18,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:18,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:39:18,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:39:18,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:39:18,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:18,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:18,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:18,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:18,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:18,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:18,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17" (1/1) ... [2020-11-28 04:39:18,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:39:18,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:39:18,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:39:18,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:39:18,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/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 04:39:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:39:18,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:39:18,319 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:39:18,320 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:39:18,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:18 BoogieIcfgContainer [2020-11-28 04:39:18,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:39:18,323 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:39:18,323 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:39:18,334 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:39:18,334 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:18" (1/1) ... [2020-11-28 04:39:18,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:39:18,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:18,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:39:18,389 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:39:18,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:39:18,392 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:18,563 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 04:39:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:18,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-11-28 04:39:18,673 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-11-28 04:39:18,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:39:18,674 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:18,700 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 04:39:18,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2020-11-28 04:39:18,853 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2020-11-28 04:39:18,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:39:18,855 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:18,926 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 04:39:19,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 31 transitions. [2020-11-28 04:39:19,119 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions. [2020-11-28 04:39:19,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:39:19,120 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:19,172 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 04:39:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-11-28 04:39:19,376 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-11-28 04:39:19,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:19,377 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:19,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:19,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-11-28 04:39:19,556 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-11-28 04:39:19,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:19,557 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:39:19,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:19,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2020-11-28 04:39:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2020-11-28 04:39:19,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:19,800 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:19,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:19,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-11-28 04:39:19,975 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-28 04:39:19,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:39:19,975 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-11-28 04:39:19,982 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:39:20,040 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2020-11-28 04:39:20,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:39:20 ImpRootNode [2020-11-28 04:39:20,052 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:39:20,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:39:20,053 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:39:20,053 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:39:20,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:18" (3/4) ... [2020-11-28 04:39:20,057 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:39:20,067 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:39:20,068 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:39:20,068 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:39:20,113 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4b7b5e60-9768-4f27-a989-b3f0f3c393bb/bin/ukojak/witness.graphml [2020-11-28 04:39:20,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:39:20,116 INFO L168 Benchmark]: Toolchain (without parser) took 2371.31 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 62.5 MB in the beginning and 52.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:20,122 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:20,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.51 ms. Allocated memory is still 94.4 MB. Free memory was 62.3 MB in the beginning and 72.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:20,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.93 ms. Allocated memory is still 94.4 MB. Free memory was 72.8 MB in the beginning and 71.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:20,124 INFO L168 Benchmark]: Boogie Preprocessor took 26.21 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 70.5 MB in the end (delta: 808.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:20,125 INFO L168 Benchmark]: RCFGBuilder took 282.17 ms. Allocated memory is still 94.4 MB. Free memory was 70.5 MB in the beginning and 59.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:20,126 INFO L168 Benchmark]: CodeCheck took 1728.85 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 59.9 MB in the beginning and 54.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:20,127 INFO L168 Benchmark]: Witness Printer took 60.70 ms. Allocated memory is still 125.8 MB. Free memory was 54.3 MB in the beginning and 52.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:20,130 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: 1.6s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 384 SDtfs, 782 SDslu, 940 SDs, 0 SdLazy, 2352 SolverSat, 510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 344 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 491 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 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: 19]: 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: 19]: 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: x <= 2147483647 && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 51.9 MB in the beginning and 51.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 224.51 ms. Allocated memory is still 94.4 MB. Free memory was 62.3 MB in the beginning and 72.8 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.93 ms. Allocated memory is still 94.4 MB. Free memory was 72.8 MB in the beginning and 71.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.21 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 70.5 MB in the end (delta: 808.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 282.17 ms. Allocated memory is still 94.4 MB. Free memory was 70.5 MB in the beginning and 59.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 1728.85 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 59.9 MB in the beginning and 54.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. * Witness Printer took 60.70 ms. Allocated memory is still 125.8 MB. Free memory was 54.3 MB in the beginning and 52.2 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...