./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label07_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_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label07_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/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 f00fa7f90af487ebbfd04394bf815b5a9b100931 ..................................................................................................................................................................................................................................................................... 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 05:17:28,889 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:17:28,890 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:17:28,898 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:17:28,898 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:17:28,899 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:17:28,900 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:17:28,901 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:17:28,902 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:17:28,902 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:17:28,903 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:17:28,903 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:17:28,904 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:17:28,905 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:17:28,905 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:17:28,906 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:17:28,907 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:17:28,908 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:17:28,909 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:17:28,910 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:17:28,911 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:17:28,912 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:17:28,914 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:17:28,914 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:17:28,914 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:17:28,915 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:17:28,916 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:17:28,916 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:17:28,917 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:17:28,918 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:17:28,918 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:17:28,918 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:17:28,919 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:17:28,919 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:17:28,919 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:17:28,920 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:17:28,920 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 05:17:28,931 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:17:28,931 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:17:28,931 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:17:28,931 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 05:17:28,932 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 05:17:28,932 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 05:17:28,932 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:17:28,932 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:17:28,932 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:17:28,933 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:17:28,933 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:17:28,933 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:17:28,933 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:17:28,933 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:17:28,933 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:17:28,933 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:17:28,933 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:17:28,934 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:17:28,934 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 05:17:28,934 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 05:17:28,934 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:17:28,934 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:17:28,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 05:17:28,935 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:17:28,935 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:17:28,935 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:17:28,935 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 05:17:28,935 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:17:28,935 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:17:28,935 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_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/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 -> f00fa7f90af487ebbfd04394bf815b5a9b100931 [2018-11-23 05:17:28,961 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:17:28,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:17:28,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:17:28,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:17:28,972 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:17:28,973 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem10_label07_true-unreach-call.c [2018-11-23 05:17:29,011 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/data/a96dc4781/c51ebe1792b24260a0d0bbcfc43bbf2d/FLAGe3e3d31a3 [2018-11-23 05:17:29,471 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:17:29,472 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/sv-benchmarks/c/eca-rers2012/Problem10_label07_true-unreach-call.c [2018-11-23 05:17:29,483 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/data/a96dc4781/c51ebe1792b24260a0d0bbcfc43bbf2d/FLAGe3e3d31a3 [2018-11-23 05:17:29,993 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/data/a96dc4781/c51ebe1792b24260a0d0bbcfc43bbf2d [2018-11-23 05:17:29,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:17:29,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:17:29,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:17:29,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:17:30,000 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:17:30,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:17:29" (1/1) ... [2018-11-23 05:17:30,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@213ccf52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30, skipping insertion in model container [2018-11-23 05:17:30,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:17:29" (1/1) ... [2018-11-23 05:17:30,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:17:30,050 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:17:30,267 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:17:30,270 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:17:30,342 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:17:30,358 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:17:30,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30 WrapperNode [2018-11-23 05:17:30,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:17:30,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:17:30,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:17:30,359 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:17:30,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30" (1/1) ... [2018-11-23 05:17:30,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30" (1/1) ... [2018-11-23 05:17:30,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:17:30,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:17:30,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:17:30,476 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:17:30,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30" (1/1) ... [2018-11-23 05:17:30,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30" (1/1) ... [2018-11-23 05:17:30,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30" (1/1) ... [2018-11-23 05:17:30,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30" (1/1) ... [2018-11-23 05:17:30,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30" (1/1) ... [2018-11-23 05:17:30,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30" (1/1) ... [2018-11-23 05:17:30,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30" (1/1) ... [2018-11-23 05:17:30,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:17:30,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:17:30,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:17:30,522 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:17:30,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/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 05:17:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 05:17:30,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:17:30,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:18:44,931 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:18:44,931 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 05:18:44,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:18:44 BoogieIcfgContainer [2018-11-23 05:18:44,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:18:44,932 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 05:18:44,932 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 05:18:44,940 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 05:18:44,940 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:18:44" (1/1) ... [2018-11-23 05:18:44,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:18:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 05:18:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-23 05:18:44,974 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-23 05:18:44,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 05:18:44,976 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 05:18:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:18:45,139 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 05:18:45,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 05:18:45,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-11-23 05:18:45,184 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-11-23 05:18:45,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 05:18:45,185 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 05:18:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:18:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:18:45,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 05:18:45,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 19 states and 31 transitions. [2018-11-23 05:18:45,764 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 31 transitions. [2018-11-23 05:18:45,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 05:18:45,766 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 05:18:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:18:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:18:46,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 05:18:46,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 26 states and 47 transitions. [2018-11-23 05:18:46,684 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 47 transitions. [2018-11-23 05:18:46,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 05:18:46,684 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 05:18:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:18:46,982 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:18:47,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 05:18:47,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 29 states and 51 transitions. [2018-11-23 05:18:47,465 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 51 transitions. [2018-11-23 05:18:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 05:18:47,466 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 05:18:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:18:47,853 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 05:18:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 05:18:58,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 38 states and 71 transitions. [2018-11-23 05:18:58,726 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 71 transitions. [2018-11-23 05:18:58,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 05:18:58,726 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 05:18:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:18:59,038 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 05:18:59,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 05:18:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 43 states and 79 transitions. [2018-11-23 05:18:59,393 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 79 transitions. [2018-11-23 05:18:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 05:18:59,394 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 05:18:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:18:59,677 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 05:18:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 05:18:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 44 states and 79 transitions. [2018-11-23 05:18:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2018-11-23 05:18:59,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 05:18:59,782 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 05:18:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:00,537 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 05:19:01,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 05:19:01,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 48 states and 86 transitions. [2018-11-23 05:19:01,096 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 86 transitions. [2018-11-23 05:19:01,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 05:19:01,097 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 05:19:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:19:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 05:19:02,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 05:19:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 32 states and 58 transitions. [2018-11-23 05:19:02,522 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 58 transitions. [2018-11-23 05:19:02,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 05:19:02,523 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2018-11-23 05:19:02,529 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-23 05:19:02,670 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 27 [2018-11-23 05:19:02,793 INFO L579 CodeCheckObserver]: Invariant with dag size 27 [2018-11-23 05:19:02,803 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 05:19:02,803 INFO L579 CodeCheckObserver]: Invariant with dag size 26 [2018-11-23 05:19:02,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 05:19:02 ImpRootNode [2018-11-23 05:19:02,804 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 05:19:02,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:19:02,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:19:02,805 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:19:02,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:18:44" (3/4) ... [2018-11-23 05:19:02,808 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 05:19:02,822 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 177 nodes and edges [2018-11-23 05:19:02,823 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-23 05:19:02,824 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 05:19:02,825 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 05:19:02,908 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_769cbc91-7fd1-4925-ba2e-4ad63bdcea6a/bin-2019/ukojak/witness.graphml [2018-11-23 05:19:02,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:19:02,909 INFO L168 Benchmark]: Toolchain (without parser) took 92913.30 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 434.6 MB). Free memory was 958.0 MB in the beginning and 1.3 GB in the end (delta: -352.4 MB). Peak memory consumption was 82.3 MB. Max. memory is 11.5 GB. [2018-11-23 05:19:02,909 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:19:02,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.07 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 920.4 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-23 05:19:02,910 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 920.4 MB in the beginning and 1.1 GB in the end (delta: -216.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-23 05:19:02,910 INFO L168 Benchmark]: Boogie Preprocessor took 45.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:19:02,910 INFO L168 Benchmark]: RCFGBuilder took 74410.58 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -21.5 MB). Peak memory consumption was 346.9 MB. Max. memory is 11.5 GB. [2018-11-23 05:19:02,910 INFO L168 Benchmark]: CodeCheck took 17871.63 ms. Allocated memory was 1.3 GB in the beginning and 1.5 GB in the end (delta: 177.7 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -179.2 MB). Peak memory consumption was 490.5 MB. Max. memory is 11.5 GB. [2018-11-23 05:19:02,911 INFO L168 Benchmark]: Witness Printer took 104.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-11-23 05:19:02,912 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 206 locations, 1 error locations. SAFE Result, 17.5s OverallTime, 10 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3212 SDtfs, 6568 SDslu, 4376 SDs, 0 SdLazy, 19220 SolverSat, 2544 SolverUnsat, 32 SolverUnknown, 0 SolverNotchecked, 55.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1387 GetRequests, 1169 SyntacticMatches, 96 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8946 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 21980 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 48/177 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: 139]: 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: 582]: Loop Invariant Derived loop invariant: (((a19 == 8 || 9 <= a19) || ((!(a10 == 2) && a12 == 0) && a4 == 14)) || ((a12 == 0 && 0 < a1 + 13) && a4 == 14)) || ((!(a19 == 6) && a12 == 0) && a4 == 14) - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (a19 == 8 || 9 <= a19) || ((a12 == 0 && a4 == 14) && ((!(a10 == 2) || !(a19 == 6)) || 0 < a1 + 13)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 362.07 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 920.4 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 116.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 920.4 MB in the beginning and 1.1 GB in the end (delta: -216.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.41 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. * RCFGBuilder took 74410.58 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 108.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -21.5 MB). Peak memory consumption was 346.9 MB. Max. memory is 11.5 GB. * CodeCheck took 17871.63 ms. Allocated memory was 1.3 GB in the beginning and 1.5 GB in the end (delta: 177.7 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -179.2 MB). Peak memory consumption was 490.5 MB. Max. memory is 11.5 GB. * Witness Printer took 104.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...