./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_4_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/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 d9173b5752f2ad7e2ef0e121ccbbcc0f8d06ad57 ................................................................................................................................................................................................................................................................. 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 12:17:32,074 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:17:32,075 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:17:32,081 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:17:32,081 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:17:32,082 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:17:32,082 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:17:32,083 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:17:32,084 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:17:32,084 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:17:32,085 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:17:32,085 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:17:32,085 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:17:32,086 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:17:32,086 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:17:32,087 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:17:32,087 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:17:32,088 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:17:32,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:17:32,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:17:32,090 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:17:32,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:17:32,091 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:17:32,092 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:17:32,092 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:17:32,092 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:17:32,093 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:17:32,093 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:17:32,093 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:17:32,094 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:17:32,094 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:17:32,094 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:17:32,094 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:17:32,094 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:17:32,095 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:17:32,095 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:17:32,095 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-02 12:17:32,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:17:32,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:17:32,103 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 12:17:32,103 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 12:17:32,103 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 12:17:32,104 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 12:17:32,104 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:17:32,104 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 12:17:32,104 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 12:17:32,104 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 12:17:32,104 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:17:32,104 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 12:17:32,104 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 12:17:32,104 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 12:17:32,104 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 12:17:32,105 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:17:32,105 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 12:17:32,105 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 12:17:32,105 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 12:17:32,105 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 12:17:32,105 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:17:32,105 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 12:17:32,105 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 12:17:32,105 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:17:32,105 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 12:17:32,105 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 12:17:32,106 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 12:17:32,106 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 12:17:32,106 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 12:17:32,106 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_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/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 -> d9173b5752f2ad7e2ef0e121ccbbcc0f8d06ad57 [2018-12-02 12:17:32,123 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:17:32,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:17:32,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:17:32,135 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:17:32,136 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:17:32,136 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/../../sv-benchmarks/c/loop-industry-pattern/ofuf_4_true-unreach-call.c [2018-12-02 12:17:32,181 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/data/49c396861/2e42492fb98947d1972273861f3d50c5/FLAGd1d4d67e7 [2018-12-02 12:17:32,633 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:17:32,633 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/sv-benchmarks/c/loop-industry-pattern/ofuf_4_true-unreach-call.c [2018-12-02 12:17:32,638 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/data/49c396861/2e42492fb98947d1972273861f3d50c5/FLAGd1d4d67e7 [2018-12-02 12:17:32,646 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/data/49c396861/2e42492fb98947d1972273861f3d50c5 [2018-12-02 12:17:32,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:17:32,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:17:32,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:17:32,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:17:32,653 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:17:32,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c28c15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32, skipping insertion in model container [2018-12-02 12:17:32,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:17:32,682 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:17:32,857 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:17:32,864 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:17:32,902 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:17:32,914 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:17:32,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32 WrapperNode [2018-12-02 12:17:32,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:17:32,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:17:32,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:17:32,915 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:17:32,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:17:32,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:17:32,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:17:32,948 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:17:32,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32" (1/1) ... [2018-12-02 12:17:32,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:17:32,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:17:32,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:17:32,976 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:17:32,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:17:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/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 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2018-12-02 12:17:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2018-12-02 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2018-12-02 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2018-12-02 12:17:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2018-12-02 12:17:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:17:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:17:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2018-12-02 12:17:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2018-12-02 12:17:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 12:17:33,604 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:17:33,604 INFO L280 CfgBuilder]: Removed 23 assue(true) statements. [2018-12-02 12:17:33,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:17:33 BoogieIcfgContainer [2018-12-02 12:17:33,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:17:33,605 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 12:17:33,605 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 12:17:33,612 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 12:17:33,612 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:17:33" (1/1) ... [2018-12-02 12:17:33,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:17:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 12:17:33,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 61 states and 92 transitions. [2018-12-02 12:17:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 92 transitions. [2018-12-02 12:17:33,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 12:17:33,650 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 12:17:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:17:33,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:17:33,829 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 12:17:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 12:17:33,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 59 states and 89 transitions. [2018-12-02 12:17:33,854 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions. [2018-12-02 12:17:33,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 12:17:33,855 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2018-12-02 12:17:33,861 INFO L779 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-12-02 12:17:33,898 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,900 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,901 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,901 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,901 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,901 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,901 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,901 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,902 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,902 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,902 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,902 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-02 12:17:33,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 12:17:33 ImpRootNode [2018-12-02 12:17:33,902 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 12:17:33,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:17:33,903 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:17:33,903 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:17:33,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:17:33" (3/4) ... [2018-12-02 12:17:33,907 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 12:17:33,912 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2018-12-02 12:17:33,912 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2018-12-02 12:17:33,912 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2018-12-02 12:17:33,920 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2018-12-02 12:17:33,921 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2018-12-02 12:17:33,922 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 12:17:33,923 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 12:17:33,923 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 12:17:33,924 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 12:17:33,997 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a3c125b4-8d5a-4c8e-93e9-4717db3ca2ab/bin-2019/ukojak/witness.graphml [2018-12-02 12:17:33,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:17:33,998 INFO L168 Benchmark]: Toolchain (without parser) took 1349.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 949.5 MB in the beginning and 921.5 MB in the end (delta: 28.1 MB). Peak memory consumption was 161.8 MB. Max. memory is 11.5 GB. [2018-12-02 12:17:33,999 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-02 12:17:33,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-02 12:17:34,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 12:17:34,000 INFO L168 Benchmark]: Boogie Preprocessor took 28.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:17:34,000 INFO L168 Benchmark]: RCFGBuilder took 628.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.5 MB in the end (delta: 141.3 MB). Peak memory consumption was 141.3 MB. Max. memory is 11.5 GB. [2018-12-02 12:17:34,000 INFO L168 Benchmark]: CodeCheck took 297.57 ms. Allocated memory is still 1.2 GB. Free memory was 976.5 MB in the beginning and 935.2 MB in the end (delta: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. [2018-12-02 12:17:34,000 INFO L168 Benchmark]: Witness Printer took 94.70 ms. Allocated memory is still 1.2 GB. Free memory was 935.2 MB in the beginning and 921.5 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-02 12:17:34,002 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, 101 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 2 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 172 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 440 SizeOfPredicates, 10 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 8 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: 458]: 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: 347]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 303]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 353]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 401]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 221]: 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 628.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.5 MB in the end (delta: 141.3 MB). Peak memory consumption was 141.3 MB. Max. memory is 11.5 GB. * CodeCheck took 297.57 ms. Allocated memory is still 1.2 GB. Free memory was 976.5 MB in the beginning and 935.2 MB in the end (delta: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. * Witness Printer took 94.70 ms. Allocated memory is still 1.2 GB. Free memory was 935.2 MB in the beginning and 921.5 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...