./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.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_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/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 ebb74e337af9534aacfcb2a7a413bdbed21e04b2 .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:53:36,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:53:36,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:53:36,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:53:36,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:53:36,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:53:36,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:53:36,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:53:36,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:53:36,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:53:36,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:53:36,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:53:36,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:53:36,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:53:36,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:53:36,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:53:36,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:53:36,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:53:36,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:53:36,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:53:36,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:53:36,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:53:36,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:53:36,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:53:36,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:53:36,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:53:36,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:53:36,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:53:36,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:53:36,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:53:36,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:53:36,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:53:36,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:53:36,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:53:36,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:53:36,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:53:36,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:53:36,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:53:37,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:53:37,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:53:37,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:53:37,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-30 00:53:37,047 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:53:37,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:53:37,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:53:37,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:53:37,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:53:37,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:53:37,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:53:37,063 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:53:37,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:53:37,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:53:37,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:53:37,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:53:37,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:53:37,066 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 00:53:37,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:53:37,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:53:37,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:53:37,067 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:53:37,067 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:53:37,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:53:37,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:53:37,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:53:37,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:53:37,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:53:37,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:53:37,069 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:53:37,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:53:37,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:53:37,070 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_ecb8534b-4b89-490e-8588-3d3b9f257d3e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebb74e337af9534aacfcb2a7a413bdbed21e04b2 [2020-11-30 00:53:37,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:53:37,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:53:37,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:53:37,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:53:37,376 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:53:37,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2020-11-30 00:53:37,476 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/data/36b22b220/b643a61b3d6c45488ac401f1ef40d11d/FLAG3c0f0b863 [2020-11-30 00:53:37,991 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:53:37,993 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2020-11-30 00:53:38,007 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/data/36b22b220/b643a61b3d6c45488ac401f1ef40d11d/FLAG3c0f0b863 [2020-11-30 00:53:38,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/data/36b22b220/b643a61b3d6c45488ac401f1ef40d11d [2020-11-30 00:53:38,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:53:38,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:53:38,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:53:38,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:53:38,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:53:38,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a04b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38, skipping insertion in model container [2020-11-30 00:53:38,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:53:38,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:53:38,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:53:38,544 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:53:38,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:53:38,604 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:53:38,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38 WrapperNode [2020-11-30 00:53:38,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:53:38,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:53:38,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:53:38,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:53:38,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:53:38,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:53:38,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:53:38,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:53:38,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38" (1/1) ... [2020-11-30 00:53:38,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:53:38,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:53:38,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:53:38,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:53:38,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/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 [2020-11-30 00:53:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:53:38,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:53:39,258 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:53:39,258 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:53:39,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:53:39 BoogieIcfgContainer [2020-11-30 00:53:39,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:53:39,262 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:53:39,262 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:53:39,274 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:53:39,275 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:53:39" (1/1) ... [2020-11-30 00:53:39,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:53:39,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2020-11-30 00:53:39,332 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-30 00:53:39,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:53:39,334 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:39,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2020-11-30 00:53:39,626 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-30 00:53:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:53:39,627 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:39,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2020-11-30 00:53:39,726 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-11-30 00:53:39,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:53:39,727 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:39,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2020-11-30 00:53:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2020-11-30 00:53:40,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:53:40,405 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:40,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:40,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2020-11-30 00:53:40,996 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2020-11-30 00:53:40,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:53:40,996 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:41,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:41,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2020-11-30 00:53:41,054 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2020-11-30 00:53:41,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:53:41,057 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:41,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2020-11-30 00:53:41,311 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2020-11-30 00:53:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:53:41,312 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:41,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:41,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2020-11-30 00:53:41,404 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2020-11-30 00:53:41,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:53:41,405 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:41,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2020-11-30 00:53:41,490 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2020-11-30 00:53:41,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:53:41,491 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:41,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:42,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:42,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 36 states and 55 transitions. [2020-11-30 00:53:42,417 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 55 transitions. [2020-11-30 00:53:42,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:53:42,418 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:42,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:43,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:43,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2020-11-30 00:53:43,368 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2020-11-30 00:53:43,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:53:43,369 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:43,482 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:44,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2020-11-30 00:53:44,083 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2020-11-30 00:53:44,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:53:44,083 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:44,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2020-11-30 00:53:44,649 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-11-30 00:53:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:53:44,649 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:45,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:45,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2020-11-30 00:53:45,054 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-11-30 00:53:45,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:53:45,055 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:45,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:45,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2020-11-30 00:53:45,922 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-30 00:53:45,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:53:45,922 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:53:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:45,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:53:46,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:53:46,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-30 00:53:46,232 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-30 00:53:46,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:53:46,233 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2020-11-30 00:53:46,245 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2020-11-30 00:53:46,319 INFO L569 CodeCheckObserver]: Invariant with dag size 20 [2020-11-30 00:53:46,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:53:46 ImpRootNode [2020-11-30 00:53:46,331 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:53:46,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:53:46,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:53:46,332 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:53:46,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:53:39" (3/4) ... [2020-11-30 00:53:46,336 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:53:46,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 00:53:46,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 00:53:46,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:53:46,390 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ecb8534b-4b89-490e-8588-3d3b9f257d3e/bin/ukojak/witness.graphml [2020-11-30 00:53:46,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:53:46,393 INFO L168 Benchmark]: Toolchain (without parser) took 8051.51 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 111.4 MB in the beginning and 122.3 MB in the end (delta: -10.9 MB). Peak memory consumption was 50.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:53:46,393 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 46.2 MB in the beginning and 46.2 MB in the end (delta: 40.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:53:46,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.56 ms. Allocated memory is still 138.4 MB. Free memory was 111.1 MB in the beginning and 117.4 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:53:46,395 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.70 ms. Allocated memory is still 138.4 MB. Free memory was 117.4 MB in the beginning and 116.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:53:46,396 INFO L168 Benchmark]: Boogie Preprocessor took 40.49 ms. Allocated memory is still 138.4 MB. Free memory was 116.1 MB in the beginning and 115.2 MB in the end (delta: 832.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:53:46,396 INFO L168 Benchmark]: RCFGBuilder took 560.03 ms. Allocated memory is still 138.4 MB. Free memory was 115.2 MB in the beginning and 103.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:53:46,397 INFO L168 Benchmark]: CodeCheck took 7068.89 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 103.5 MB in the beginning and 124.4 MB in the end (delta: -20.9 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:53:46,398 INFO L168 Benchmark]: Witness Printer took 59.16 ms. Allocated memory is still 201.3 MB. Free memory was 124.4 MB in the beginning and 122.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:53:46,402 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, 20 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65536 SDtfs, 109266 SDslu, 0 SDs, 0 SdLazy, 735992 SolverSat, 164326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1193 GetRequests, 1027 SyntacticMatches, 40 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6985 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 3199 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 10 PerfectInterpolantSequences, 4/22 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: 21]: 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 19]: 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 8 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((q + y <= 2147483646 && 2147483647 < y) || (q <= y + 2147483646 && y + 2147483648 < 0)) || ((0 <= y + 2147483648 && q <= 2147483647) && y <= 2147483647) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 46.2 MB in the beginning and 46.2 MB in the end (delta: 40.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 263.56 ms. Allocated memory is still 138.4 MB. Free memory was 111.1 MB in the beginning and 117.4 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.70 ms. Allocated memory is still 138.4 MB. Free memory was 117.4 MB in the beginning and 116.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.49 ms. Allocated memory is still 138.4 MB. Free memory was 116.1 MB in the beginning and 115.2 MB in the end (delta: 832.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 560.03 ms. Allocated memory is still 138.4 MB. Free memory was 115.2 MB in the beginning and 103.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 7068.89 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 103.5 MB in the beginning and 124.4 MB in the end (delta: -20.9 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.1 GB. * Witness Printer took 59.16 ms. Allocated memory is still 201.3 MB. Free memory was 124.4 MB in the beginning and 122.3 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...