./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5d419a3a7f083f15010050e5cf28b10f30a132d .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 23:14:59,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 23:14:59,337 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 23:14:59,343 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 23:14:59,343 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 23:14:59,344 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 23:14:59,345 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 23:14:59,346 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 23:14:59,347 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 23:14:59,347 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 23:14:59,348 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 23:14:59,348 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 23:14:59,349 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 23:14:59,349 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 23:14:59,350 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 23:14:59,350 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 23:14:59,351 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 23:14:59,352 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 23:14:59,353 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 23:14:59,354 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 23:14:59,355 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 23:14:59,355 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 23:14:59,356 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 23:14:59,357 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 23:14:59,357 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 23:14:59,357 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 23:14:59,358 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 23:14:59,358 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 23:14:59,359 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 23:14:59,359 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 23:14:59,359 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 23:14:59,360 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 23:14:59,360 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 23:14:59,360 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 23:14:59,361 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 23:14:59,361 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 23:14:59,361 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-11-09 23:14:59,371 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 23:14:59,371 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 23:14:59,372 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 23:14:59,372 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 23:14:59,373 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 23:14:59,373 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 23:14:59,373 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 23:14:59,373 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 23:14:59,373 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-09 23:14:59,373 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 23:14:59,373 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 23:14:59,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 23:14:59,374 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 23:14:59,374 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 23:14:59,374 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 23:14:59,374 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-09 23:14:59,374 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 23:14:59,374 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 23:14:59,374 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 23:14:59,374 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-09 23:14:59,375 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-09 23:14:59,375 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 23:14:59,375 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 23:14:59,375 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-09 23:14:59,375 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 23:14:59,375 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 23:14:59,375 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 23:14:59,376 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-09 23:14:59,376 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 23:14:59,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-09 23:14:59,376 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5d419a3a7f083f15010050e5cf28b10f30a132d [2018-11-09 23:14:59,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 23:14:59,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 23:14:59,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 23:14:59,412 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 23:14:59,412 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 23:14:59,413 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/../../sv-benchmarks/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i [2018-11-09 23:14:59,460 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/data/7ad46f350/1c9bdd5165434a55902d880e1827c2ec/FLAG00a23a0db [2018-11-09 23:14:59,789 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 23:14:59,790 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/sv-benchmarks/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i [2018-11-09 23:14:59,794 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/data/7ad46f350/1c9bdd5165434a55902d880e1827c2ec/FLAG00a23a0db [2018-11-09 23:14:59,805 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/data/7ad46f350/1c9bdd5165434a55902d880e1827c2ec [2018-11-09 23:14:59,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 23:14:59,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-09 23:14:59,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 23:14:59,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 23:14:59,813 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 23:14:59,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:14:59,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10835ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59, skipping insertion in model container [2018-11-09 23:14:59,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:14:59,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 23:14:59,842 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 23:14:59,947 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:14:59,949 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 23:14:59,959 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:14:59,967 INFO L193 MainTranslator]: Completed translation [2018-11-09 23:14:59,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59 WrapperNode [2018-11-09 23:14:59,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 23:14:59,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-09 23:14:59,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-09 23:14:59,968 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-09 23:14:59,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:14:59,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:14:59,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-09 23:14:59,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 23:14:59,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 23:14:59,989 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 23:14:59,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:14:59,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:14:59,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:14:59,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:14:59,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:15:00,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:15:00,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59" (1/1) ... [2018-11-09 23:15:00,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 23:15:00,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 23:15:00,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 23:15:00,004 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 23:15:00,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-09 23:15:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 23:15:00,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 23:15:00,218 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 23:15:00,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:15:00 BoogieIcfgContainer [2018-11-09 23:15:00,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 23:15:00,219 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-09 23:15:00,219 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-09 23:15:00,228 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-09 23:15:00,228 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:15:00" (1/1) ... [2018-11-09 23:15:00,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:15:00,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:15:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2018-11-09 23:15:00,263 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2018-11-09 23:15:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-09 23:15:00,266 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:15:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:15:00,341 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:15:00,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:15:00,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:15:00,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2018-11-09 23:15:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2018-11-09 23:15:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-09 23:15:00,434 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:15:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:15:00,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:15:00,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:15:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:15:00,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2018-11-09 23:15:00,513 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2018-11-09 23:15:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-09 23:15:00,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:15:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:15:00,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:15:00,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:15:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:15:00,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2018-11-09 23:15:00,612 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2018-11-09 23:15:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-09 23:15:00,612 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:15:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:15:00,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:15:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:15:00,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:15:00,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2018-11-09 23:15:00,722 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2018-11-09 23:15:00,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-09 23:15:00,722 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2018-11-09 23:15:00,729 INFO L778 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-09 23:15:00,752 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-09 23:15:00,754 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-09 23:15:00,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 11:15:00 ImpRootNode [2018-11-09 23:15:00,755 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-09 23:15:00,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 23:15:00,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 23:15:00,755 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 23:15:00,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:15:00" (3/4) ... [2018-11-09 23:15:00,759 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-09 23:15:00,766 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-09 23:15:00,766 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-09 23:15:00,767 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-09 23:15:00,804 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d661b8e7-8ace-41e3-8dcf-06c486a76983/bin-2019/ukojak/witness.graphml [2018-11-09 23:15:00,804 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 23:15:00,805 INFO L168 Benchmark]: Toolchain (without parser) took 996.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -90.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. [2018-11-09 23:15:00,806 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:15:00,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.96 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:15:00,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.25 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:15:00,807 INFO L168 Benchmark]: Boogie Preprocessor took 15.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:15:00,807 INFO L168 Benchmark]: RCFGBuilder took 214.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:15:00,808 INFO L168 Benchmark]: CodeCheck took 535.87 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: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. [2018-11-09 23:15:00,808 INFO L168 Benchmark]: Witness Printer took 49.18 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-09 23:15:00,810 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 24 locations, 4 error locations. SAFE Result, 0.4s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 56 SDslu, 0 SDs, 0 SdLazy, 268 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 SizeOfPredicates, 8 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.96 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.25 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 214.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * CodeCheck took 535.87 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: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. * Witness Printer took 49.18 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...