./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrspn_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrspn_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/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 64bit --witnessprinter.graph.data.programhash 0c74f0cc26425c1a044a70e86941b5dd82b132ff ............................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 14:42:43,988 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 14:42:43,989 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 14:42:43,997 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 14:42:43,997 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 14:42:43,998 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 14:42:43,999 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 14:42:44,000 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 14:42:44,001 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 14:42:44,002 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 14:42:44,002 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 14:42:44,003 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 14:42:44,003 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 14:42:44,004 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 14:42:44,005 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 14:42:44,005 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 14:42:44,006 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 14:42:44,007 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 14:42:44,008 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 14:42:44,009 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 14:42:44,010 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 14:42:44,011 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 14:42:44,012 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 14:42:44,013 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 14:42:44,013 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 14:42:44,013 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 14:42:44,014 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 14:42:44,015 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 14:42:44,015 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 14:42:44,016 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 14:42:44,016 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 14:42:44,017 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 14:42:44,017 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 14:42:44,017 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 14:42:44,018 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 14:42:44,018 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 14:42:44,018 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-02 14:42:44,028 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 14:42:44,029 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 14:42:44,029 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 14:42:44,029 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 14:42:44,030 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 14:42:44,030 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 14:42:44,030 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 14:42:44,030 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 14:42:44,031 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 14:42:44,031 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 14:42:44,031 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 14:42:44,031 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 14:42:44,031 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 14:42:44,031 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 14:42:44,031 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 14:42:44,031 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 14:42:44,031 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 14:42:44,032 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 14:42:44,032 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 14:42:44,032 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 14:42:44,032 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 14:42:44,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 14:42:44,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 14:42:44,032 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 14:42:44,033 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 14:42:44,033 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 14:42:44,033 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 14:42:44,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 14:42:44,033 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_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c74f0cc26425c1a044a70e86941b5dd82b132ff [2018-12-02 14:42:44,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 14:42:44,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 14:42:44,068 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 14:42:44,069 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 14:42:44,069 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 14:42:44,070 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/cstrspn_true-termination_true-no-overflow.c [2018-12-02 14:42:44,115 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/data/d48eff3ae/9b083ba7d044435eb2ef449148c4fe8e/FLAGc6363a176 [2018-12-02 14:42:44,543 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 14:42:44,543 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/sv-benchmarks/c/termination-crafted-lit/cstrspn_true-termination_true-no-overflow.c [2018-12-02 14:42:44,547 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/data/d48eff3ae/9b083ba7d044435eb2ef449148c4fe8e/FLAGc6363a176 [2018-12-02 14:42:44,557 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/data/d48eff3ae/9b083ba7d044435eb2ef449148c4fe8e [2018-12-02 14:42:44,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 14:42:44,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 14:42:44,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 14:42:44,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 14:42:44,564 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 14:42:44,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692912b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44, skipping insertion in model container [2018-12-02 14:42:44,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 14:42:44,582 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 14:42:44,676 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:42:44,682 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 14:42:44,692 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:42:44,701 INFO L195 MainTranslator]: Completed translation [2018-12-02 14:42:44,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44 WrapperNode [2018-12-02 14:42:44,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 14:42:44,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 14:42:44,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 14:42:44,702 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 14:42:44,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 14:42:44,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 14:42:44,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 14:42:44,723 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 14:42:44,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 14:42:44,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 14:42:44,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 14:42:44,768 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 14:42:44,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/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 [2018-12-02 14:42:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 14:42:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-12-02 14:42:44,799 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-12-02 14:42:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 14:42:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 14:42:44,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 14:42:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 14:42:44,955 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 14:42:44,955 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-02 14:42:44,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:42:44 BoogieIcfgContainer [2018-12-02 14:42:44,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 14:42:44,955 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 14:42:44,956 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 14:42:44,962 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 14:42:44,962 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:42:44" (1/1) ... [2018-12-02 14:42:44,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:42:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 14:42:44,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2018-12-02 14:42:44,992 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2018-12-02 14:42:44,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 14:42:44,993 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 14:42:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:42:45,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:42:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 14:42:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2018-12-02 14:42:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2018-12-02 14:42:45,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 14:42:45,088 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 14:42:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:42:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:42:45,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 14:42:45,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2018-12-02 14:42:45,141 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2018-12-02 14:42:45,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-02 14:42:45,141 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 14:42:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:42:45,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:42:45,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 14:42:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2018-12-02 14:42:45,164 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2018-12-02 14:42:45,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 14:42:45,167 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 14:42:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:42:45,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:42:45,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 14:42:45,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2018-12-02 14:42:45,248 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2018-12-02 14:42:45,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 14:42:45,248 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2018-12-02 14:42:45,254 INFO L779 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-12-02 14:42:45,277 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 14:42:45,279 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 14:42:45,279 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 14:42:45,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 02:42:45 ImpRootNode [2018-12-02 14:42:45,280 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 14:42:45,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 14:42:45,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 14:42:45,280 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 14:42:45,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:42:44" (3/4) ... [2018-12-02 14:42:45,283 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 14:42:45,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure build_nondet_String [2018-12-02 14:42:45,290 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-02 14:42:45,290 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 14:42:45,290 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 14:42:45,326 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0fad60cf-0ecb-420e-b0b8-af9bc4ae57d1/bin-2019/ukojak/witness.graphml [2018-12-02 14:42:45,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 14:42:45,327 INFO L168 Benchmark]: Toolchain (without parser) took 766.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-12-02 14:42:45,328 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:42:45,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.50 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 14:42:45,329 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.84 ms. Allocated memory is still 1.0 GB. Free memory was 941.5 MB in the beginning and 938.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 14:42:45,329 INFO L168 Benchmark]: Boogie Preprocessor took 45.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 938.8 MB in the beginning and 1.2 GB in the end (delta: -232.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-02 14:42:45,329 INFO L168 Benchmark]: RCFGBuilder took 187.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-12-02 14:42:45,330 INFO L168 Benchmark]: CodeCheck took 324.12 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: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2018-12-02 14:42:45,330 INFO L168 Benchmark]: Witness Printer took 46.80 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. [2018-12-02 14:42:45,332 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 2 procedures, 30 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 42 SDslu, 0 SDs, 0 SdLazy, 146 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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: 31]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.50 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.5 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 20.84 ms. Allocated memory is still 1.0 GB. Free memory was 941.5 MB in the beginning and 938.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 938.8 MB in the beginning and 1.2 GB in the end (delta: -232.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 187.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * CodeCheck took 324.12 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: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. * Witness Printer took 46.80 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...