./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/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_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/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 0.1.23-635dfa2 [2018-12-09 18:57:15,930 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:57:15,931 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:57:15,938 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:57:15,938 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:57:15,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:57:15,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:57:15,940 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:57:15,941 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:57:15,941 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:57:15,942 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:57:15,942 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:57:15,943 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:57:15,943 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:57:15,944 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:57:15,944 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:57:15,945 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:57:15,946 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:57:15,948 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:57:15,949 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:57:15,949 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:57:15,950 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:57:15,952 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:57:15,952 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:57:15,952 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:57:15,953 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:57:15,954 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:57:15,954 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:57:15,955 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:57:15,956 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:57:15,956 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:57:15,956 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:57:15,957 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:57:15,957 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:57:15,957 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:57:15,958 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:57:15,958 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-12-09 18:57:15,968 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:57:15,968 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:57:15,969 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:57:15,969 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 18:57:15,970 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 18:57:15,970 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 18:57:15,970 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:57:15,970 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:57:15,970 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 18:57:15,971 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:57:15,971 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:57:15,971 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:57:15,971 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:57:15,971 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:57:15,971 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:57:15,971 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 18:57:15,972 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:57:15,972 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:57:15,972 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 18:57:15,972 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:57:15,972 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 18:57:15,972 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 18:57:15,973 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:57:15,973 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:57:15,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 18:57:15,973 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:57:15,973 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:57:15,973 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:57:15,973 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 18:57:15,974 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:57:15,974 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 18:57:15,974 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_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/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 [2018-12-09 18:57:15,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:57:16,001 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:57:16,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:57:16,004 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:57:16,005 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:57:16,005 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/bin-2019/ukojak/../../sv-benchmarks/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i [2018-12-09 18:57:16,040 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/bin-2019/ukojak/data/d90e51b63/b8f784f9620a478c8f4938b351cca0c7/FLAG7808b944f [2018-12-09 18:57:16,324 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:57:16,324 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/sv-benchmarks/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i [2018-12-09 18:57:16,328 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/bin-2019/ukojak/data/d90e51b63/b8f784f9620a478c8f4938b351cca0c7/FLAG7808b944f [2018-12-09 18:57:16,338 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/bin-2019/ukojak/data/d90e51b63/b8f784f9620a478c8f4938b351cca0c7 [2018-12-09 18:57:16,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:57:16,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:57:16,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:57:16,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:57:16,343 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:57:16,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432dabb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16, skipping insertion in model container [2018-12-09 18:57:16,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:57:16,360 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:57:16,446 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:57:16,448 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:57:16,457 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:57:16,465 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:57:16,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16 WrapperNode [2018-12-09 18:57:16,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:57:16,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:57:16,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:57:16,466 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:57:16,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:57:16,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:57:16,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:57:16,485 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:57:16,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:57:16,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:57:16,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:57:16,527 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:57:16,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:57:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/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 [2018-12-09 18:57:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:57:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:57:16,678 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:57:16,678 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-12-09 18:57:16,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:57:16 BoogieIcfgContainer [2018-12-09 18:57:16,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:57:16,679 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 18:57:16,679 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 18:57:16,685 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 18:57:16,685 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:57:16" (1/1) ... [2018-12-09 18:57:16,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:57:16,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:57:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-12-09 18:57:16,714 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-12-09 18:57:16,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 18:57:16,715 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:57:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:57:16,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:57:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:57:16,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:57:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2018-12-09 18:57:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2018-12-09 18:57:16,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 18:57:16,842 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:57:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:57:16,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:57:16,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:57:16,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:57:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2018-12-09 18:57:16,885 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-12-09 18:57:16,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 18:57:16,885 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:57:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:57:16,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:57:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:57:16,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:57:16,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2018-12-09 18:57:16,966 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-12-09 18:57:16,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 18:57:16,966 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:57:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:57:16,975 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:57:16,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:57:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:57:17,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-12-09 18:57:17,090 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-12-09 18:57:17,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 18:57:17,091 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2018-12-09 18:57:17,097 INFO L779 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-12-09 18:57:17,117 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 18:57:17,119 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 18:57:17,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 06:57:17 ImpRootNode [2018-12-09 18:57:17,120 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 18:57:17,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:57:17,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:57:17,120 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:57:17,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:57:16" (3/4) ... [2018-12-09 18:57:17,123 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 18:57:17,129 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 18:57:17,130 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 18:57:17,130 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 18:57:17,156 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a9d871be-669c-4f53-9c09-e4d9e8cb9f10/bin-2019/ukojak/witness.graphml [2018-12-09 18:57:17,156 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:57:17,157 INFO L168 Benchmark]: Toolchain (without parser) took 816.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 954.9 MB in the beginning and 1.0 GB in the end (delta: -63.4 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:57:17,158 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:57:17,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 124.83 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:57:17,158 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.38 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:57:17,159 INFO L168 Benchmark]: Boogie Preprocessor took 41.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-09 18:57:17,159 INFO L168 Benchmark]: RCFGBuilder took 151.67 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-12-09 18:57:17,159 INFO L168 Benchmark]: CodeCheck took 441.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 78.2 MB). Peak memory consumption was 78.2 MB. Max. memory is 11.5 GB. [2018-12-09 18:57:17,160 INFO L168 Benchmark]: Witness Printer took 36.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:57:17,161 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, 21 locations, 4 error locations. SAFE Result, 0.3s 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, 0.1s 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, 99 ConjunctsInSsa, 15 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: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 124.83 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 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 18.38 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 151.67 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * CodeCheck took 441.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 78.2 MB). Peak memory consumption was 78.2 MB. Max. memory is 11.5 GB. * Witness Printer took 36.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...