./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/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 0.1.24-678e011 [2019-11-20 09:26:34,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:26:34,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:26:34,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:26:34,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:26:34,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:26:34,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:26:34,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:26:34,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:26:34,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:26:34,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:26:34,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:26:34,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:26:34,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:26:34,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:26:34,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:26:34,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:26:34,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:26:34,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:26:34,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:26:34,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:26:34,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:26:34,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:26:34,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:26:34,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:26:34,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:26:34,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:26:34,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:26:34,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:26:34,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:26:34,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:26:34,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:26:34,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:26:34,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:26:34,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:26:34,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:26:34,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:26:34,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:26:34,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:26:34,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:26:34,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:26:34,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-20 09:26:34,463 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:26:34,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:26:34,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 09:26:34,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 09:26:34,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:26:34,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:26:34,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:26:34,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 09:26:34,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:26:34,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:26:34,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:26:34,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:26:34,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:26:34,478 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 09:26:34,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:26:34,478 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:26:34,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:26:34,478 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 09:26:34,478 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 09:26:34,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:26:34,479 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:26:34,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 09:26:34,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:26:34,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:26:34,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:26:34,479 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 09:26:34,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:26:34,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:26:34,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_398b4b17-572e-4ae8-b4fb-97199cc063c5/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 [2019-11-20 09:26:34,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:26:34,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:26:34,631 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:26:34,633 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:26:34,633 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:26:34,634 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2019-11-20 09:26:34,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/data/6699b5f5a/bbf8432cb1ea4469acd3b639a39de262/FLAGbdd37b91b [2019-11-20 09:26:35,086 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:26:35,086 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1.c [2019-11-20 09:26:35,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/data/6699b5f5a/bbf8432cb1ea4469acd3b639a39de262/FLAGbdd37b91b [2019-11-20 09:26:35,107 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/data/6699b5f5a/bbf8432cb1ea4469acd3b639a39de262 [2019-11-20 09:26:35,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:26:35,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:26:35,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:26:35,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:26:35,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:26:35,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e330c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35, skipping insertion in model container [2019-11-20 09:26:35,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,129 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:26:35,145 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:26:35,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:26:35,310 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:26:35,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:26:35,398 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:26:35,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35 WrapperNode [2019-11-20 09:26:35,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:26:35,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:26:35,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:26:35,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:26:35,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:26:35,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:26:35,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:26:35,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:26:35,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:26:35,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:26:35,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:26:35,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:26:35,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/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 [2019-11-20 09:26:35,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:26:35,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:26:35,752 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:26:35,752 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 09:26:35,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:26:35 BoogieIcfgContainer [2019-11-20 09:26:35,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:26:35,754 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 09:26:35,754 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 09:26:35,771 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 09:26:35,787 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:26:35" (1/1) ... [2019-11-20 09:26:35,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:26:35,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2019-11-20 09:26:35,834 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-20 09:26:35,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 09:26:35,836 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:35,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:36,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:36,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2019-11-20 09:26:36,049 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-11-20 09:26:36,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 09:26:36,049 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:36,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2019-11-20 09:26:36,137 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-11-20 09:26:36,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 09:26:36,138 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:36,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:36,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2019-11-20 09:26:36,499 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2019-11-20 09:26:36,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 09:26:36,499 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:36,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2019-11-20 09:26:37,014 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2019-11-20 09:26:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 09:26:37,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:37,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:37,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2019-11-20 09:26:37,057 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2019-11-20 09:26:37,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 09:26:37,059 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2019-11-20 09:26:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2019-11-20 09:26:37,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 09:26:37,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:37,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:37,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2019-11-20 09:26:37,305 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2019-11-20 09:26:37,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 09:26:37,305 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2019-11-20 09:26:37,344 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2019-11-20 09:26:37,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 09:26:37,345 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:37,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:37,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 36 states and 55 transitions. [2019-11-20 09:26:37,971 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 55 transitions. [2019-11-20 09:26:37,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 09:26:37,972 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:38,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:38,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2019-11-20 09:26:38,564 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2019-11-20 09:26:38,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 09:26:38,564 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:38,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:39,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:39,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2019-11-20 09:26:39,132 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2019-11-20 09:26:39,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:26:39,133 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:39,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:39,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:39,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2019-11-20 09:26:39,600 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-20 09:26:39,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:26:39,600 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:39,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:39,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2019-11-20 09:26:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2019-11-20 09:26:39,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:26:39,906 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:39,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2019-11-20 09:26:40,630 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2019-11-20 09:26:40,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:26:40,631 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:26:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:26:40,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:26:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:26:40,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2019-11-20 09:26:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-11-20 09:26:40,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 09:26:40,837 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2019-11-20 09:26:40,844 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2019-11-20 09:26:40,907 INFO L569 CodeCheckObserver]: Invariant with dag size 20 [2019-11-20 09:26:40,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 09:26:40 ImpRootNode [2019-11-20 09:26:40,915 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 09:26:40,916 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:26:40,916 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:26:40,916 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:26:40,917 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:26:35" (3/4) ... [2019-11-20 09:26:40,920 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 09:26:40,927 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 09:26:40,927 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 09:26:40,927 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 09:26:40,965 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_398b4b17-572e-4ae8-b4fb-97199cc063c5/bin/ukojak/witness.graphml [2019-11-20 09:26:40,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:26:40,968 INFO L168 Benchmark]: Toolchain (without parser) took 5855.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 946.1 MB in the beginning and 941.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 180.0 MB. Max. memory is 11.5 GB. [2019-11-20 09:26:40,968 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:26:40,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 09:26:40,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:26:40,970 INFO L168 Benchmark]: Boogie Preprocessor took 22.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:26:40,970 INFO L168 Benchmark]: RCFGBuilder took 294.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:26:40,971 INFO L168 Benchmark]: CodeCheck took 5161.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 36.7 MB). Free memory was 1.1 GB in the beginning and 943.8 MB in the end (delta: 171.6 MB). Peak memory consumption was 208.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:26:40,971 INFO L168 Benchmark]: Witness Printer took 50.00 ms. Allocated memory is still 1.2 GB. Free memory was 943.8 MB in the beginning and 941.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. [2019-11-20 09:26:40,974 INFO L335 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. Result: SAFE, OverallTime: 5.0s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 65536 SDtfs, 109266 SDslu, 0 SDs, 0 SdLazy, 735992 SolverSat, 164326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1193 GetRequests, 1027 SyntacticMatches, 40 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6985 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s 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: ((y + 2147483648 < 0 && q <= y + 2147483646) || (q + y <= 2147483646 && 2147483647 < y)) || ((0 <= y + 2147483648 && y <= 2147483647) && q <= 2147483647) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 294.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * CodeCheck took 5161.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 36.7 MB). Free memory was 1.1 GB in the beginning and 943.8 MB in the end (delta: 171.6 MB). Peak memory consumption was 208.3 MB. Max. memory is 11.5 GB. * Witness Printer took 50.00 ms. Allocated memory is still 1.2 GB. Free memory was 943.8 MB in the beginning and 941.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...