./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_1_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_1_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e13928f4cbb5df8bd3bcc6bd2cf23d73954ed0e .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 01:45:17,003 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 01:45:17,004 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 01:45:17,012 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 01:45:17,012 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 01:45:17,012 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 01:45:17,013 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 01:45:17,014 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 01:45:17,015 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 01:45:17,016 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 01:45:17,016 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 01:45:17,017 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 01:45:17,017 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 01:45:17,018 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 01:45:17,019 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 01:45:17,019 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 01:45:17,020 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 01:45:17,021 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 01:45:17,022 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 01:45:17,023 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 01:45:17,023 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 01:45:17,024 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 01:45:17,026 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 01:45:17,026 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 01:45:17,026 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 01:45:17,026 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 01:45:17,027 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 01:45:17,028 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 01:45:17,028 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 01:45:17,029 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 01:45:17,029 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 01:45:17,029 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 01:45:17,029 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 01:45:17,030 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 01:45:17,030 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 01:45:17,031 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 01:45:17,031 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 01:45:17,040 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 01:45:17,040 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 01:45:17,041 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 01:45:17,041 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 01:45:17,041 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 01:45:17,041 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 01:45:17,041 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 01:45:17,042 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 01:45:17,042 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 01:45:17,042 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 01:45:17,042 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 01:45:17,042 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 01:45:17,042 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 01:45:17,042 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 01:45:17,042 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 01:45:17,042 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 01:45:17,043 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 01:45:17,043 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 01:45:17,043 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 01:45:17,043 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 01:45:17,043 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 01:45:17,043 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 01:45:17,043 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 01:45:17,043 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 01:45:17,044 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 01:45:17,044 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 01:45:17,044 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 01:45:17,044 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 01:45:17,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 01:45:17,044 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_d4821d97-0e4b-4ac2-8824-c6cc50b34302/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 ! call(__VERIFIER_error())) ) 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 -> 1e13928f4cbb5df8bd3bcc6bd2cf23d73954ed0e [2018-11-23 01:45:17,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 01:45:17,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 01:45:17,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 01:45:17,080 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 01:45:17,080 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 01:45:17,081 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/../../sv-benchmarks/c/loop-industry-pattern/ofuf_1_true-unreach-call.c [2018-11-23 01:45:17,117 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/data/7b9e3fe75/6bf24536f3e140f688ec45585da4e1b6/FLAGaaa470034 [2018-11-23 01:45:17,555 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 01:45:17,556 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/sv-benchmarks/c/loop-industry-pattern/ofuf_1_true-unreach-call.c [2018-11-23 01:45:17,562 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/data/7b9e3fe75/6bf24536f3e140f688ec45585da4e1b6/FLAGaaa470034 [2018-11-23 01:45:17,571 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/data/7b9e3fe75/6bf24536f3e140f688ec45585da4e1b6 [2018-11-23 01:45:17,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 01:45:17,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 01:45:17,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 01:45:17,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 01:45:17,577 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 01:45:17,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c29769b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17, skipping insertion in model container [2018-11-23 01:45:17,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 01:45:17,612 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 01:45:17,774 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:45:17,819 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 01:45:17,866 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:45:17,877 INFO L195 MainTranslator]: Completed translation [2018-11-23 01:45:17,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17 WrapperNode [2018-11-23 01:45:17,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 01:45:17,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 01:45:17,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 01:45:17,878 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 01:45:17,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 01:45:17,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 01:45:17,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 01:45:17,912 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 01:45:17,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17" (1/1) ... [2018-11-23 01:45:17,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 01:45:17,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 01:45:17,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 01:45:17,948 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 01:45:17,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/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 [2018-11-23 01:45:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_113 [2018-11-23 01:45:17,984 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_113 [2018-11-23 01:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 01:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 01:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 01:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 01:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 01:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 01:45:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2018-11-23 01:45:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 01:45:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 01:45:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 01:45:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2018-11-23 01:45:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2018-11-23 01:45:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 01:45:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_107 [2018-11-23 01:45:17,985 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_107 [2018-11-23 01:45:18,711 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 01:45:18,711 INFO L280 CfgBuilder]: Removed 23 assue(true) statements. [2018-11-23 01:45:18,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:18 BoogieIcfgContainer [2018-11-23 01:45:18,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 01:45:18,712 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 01:45:18,712 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 01:45:18,719 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 01:45:18,719 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:18" (1/1) ... [2018-11-23 01:45:18,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:18,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 01:45:18,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 61 states and 92 transitions. [2018-11-23 01:45:18,756 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 92 transitions. [2018-11-23 01:45:18,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 01:45:18,761 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 01:45:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:18,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:19,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 01:45:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 59 states and 89 transitions. [2018-11-23 01:45:19,016 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions. [2018-11-23 01:45:19,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 01:45:19,017 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2018-11-23 01:45:19,025 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-23 01:45:19,054 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,056 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,056 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,057 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,057 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,057 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,057 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,057 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,057 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,057 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,057 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,057 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 01:45:19,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:45:19 ImpRootNode [2018-11-23 01:45:19,058 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 01:45:19,058 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 01:45:19,058 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 01:45:19,058 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 01:45:19,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:18" (3/4) ... [2018-11-23 01:45:19,061 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 01:45:19,065 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_113 [2018-11-23 01:45:19,066 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2018-11-23 01:45:19,066 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_107 [2018-11-23 01:45:19,073 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2018-11-23 01:45:19,074 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2018-11-23 01:45:19,074 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 01:45:19,075 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 01:45:19,075 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 01:45:19,076 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 01:45:19,150 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d4821d97-0e4b-4ac2-8824-c6cc50b34302/bin-2019/ukojak/witness.graphml [2018-11-23 01:45:19,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 01:45:19,150 INFO L168 Benchmark]: Toolchain (without parser) took 1576.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 956.4 MB in the beginning and 960.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 162.0 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:19,152 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:45:19,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -200.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:19,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:19,152 INFO L168 Benchmark]: Boogie Preprocessor took 35.34 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:19,153 INFO L168 Benchmark]: RCFGBuilder took 764.16 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: 122.9 MB). Peak memory consumption was 122.9 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:19,153 INFO L168 Benchmark]: CodeCheck took 345.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 976.2 MB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:19,153 INFO L168 Benchmark]: Witness Printer took 91.68 ms. Allocated memory is still 1.2 GB. Free memory was 976.2 MB in the beginning and 960.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:19,155 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 4 procedures, 99 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 2 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 399 SizeOfPredicates, 4 NumberOfNonLiveVariables, 304 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 484]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 246]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 396]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 269]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 378]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 480]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 222]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 328]: 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -200.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.34 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 764.16 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: 122.9 MB). Peak memory consumption was 122.9 MB. Max. memory is 11.5 GB. * CodeCheck took 345.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 976.2 MB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. * Witness Printer took 91.68 ms. Allocated memory is still 1.2 GB. Free memory was 976.2 MB in the beginning and 960.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...