./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_b2_o3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b2_o3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d9304edeab15e85170ca5853f26517d34908a3d ....................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:25:26,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:25:26,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:25:26,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:25:26,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:25:26,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:25:26,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:25:26,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:25:26,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:25:26,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:25:26,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:25:26,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:25:26,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:25:26,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:25:26,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:25:26,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:25:26,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:25:26,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:25:26,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:25:26,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:25:26,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:25:26,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:25:26,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:25:26,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:25:26,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:25:26,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:25:26,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:25:26,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:25:26,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:25:26,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:25:26,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:25:26,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:25:26,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:25:26,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:25:26,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:25:26,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:25:26,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:25:26,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:25:26,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:25:26,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:25:26,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:25:26,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 19:25:26,465 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:25:26,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:25:26,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 19:25:26,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 19:25:26,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:25:26,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:25:26,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:25:26,468 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:25:26,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:25:26,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:25:26,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:25:26,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:25:26,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:25:26,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:25:26,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:25:26,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:25:26,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:25:26,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:25:26,471 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:25:26,471 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:25:26,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:25:26,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:25:26,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:25:26,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:25:26,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:25:26,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:25:26,472 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:25:26,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:25:26,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:25:26,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d9304edeab15e85170ca5853f26517d34908a3d [2020-11-29 19:25:26,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:25:26,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:25:26,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:25:26,778 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:25:26,779 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:25:26,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_b2_o3.c [2020-11-29 19:25:26,853 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/data/cd7993590/5baef42d446443428a360ff3636bf836/FLAG7fdc71b54 [2020-11-29 19:25:27,346 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:25:27,347 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/sv-benchmarks/c/recursive-simple/id_b2_o3.c [2020-11-29 19:25:27,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/data/cd7993590/5baef42d446443428a360ff3636bf836/FLAG7fdc71b54 [2020-11-29 19:25:27,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/data/cd7993590/5baef42d446443428a360ff3636bf836 [2020-11-29 19:25:27,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:25:27,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:25:27,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:25:27,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:25:27,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:25:27,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:27,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29fb871f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27, skipping insertion in model container [2020-11-29 19:25:27,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:27,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:25:27,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:25:27,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:25:27,961 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:25:27,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:25:27,997 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:25:27,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27 WrapperNode [2020-11-29 19:25:27,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:25:28,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:25:28,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:25:28,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:25:28,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:28,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:28,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:25:28,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:25:28,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:25:28,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:25:28,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:28,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:28,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:28,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:28,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:28,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:28,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27" (1/1) ... [2020-11-29 19:25:28,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:25:28,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:25:28,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:25:28,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:25:28,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/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 [2020-11-29 19:25:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:25:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:25:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:25:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-11-29 19:25:28,180 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-11-29 19:25:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:25:28,496 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:25:28,496 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 19:25:28,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:25:28 BoogieIcfgContainer [2020-11-29 19:25:28,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:25:28,500 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:25:28,500 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:25:28,525 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:25:28,526 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:25:28" (1/1) ... [2020-11-29 19:25:28,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:25:28,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:25:28,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-29 19:25:28,589 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-29 19:25:28,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:25:28,594 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:25:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:25:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:25:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:25:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2020-11-29 19:25:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-29 19:25:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 19:25:28,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:25:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:25:29,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 19:25:29,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:25:29,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2020-11-29 19:25:29,483 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-29 19:25:29,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 19:25:29,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:25:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:25:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-29 19:25:30,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:25:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2020-11-29 19:25:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-11-29 19:25:30,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 19:25:30,304 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:25:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:25:30,631 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-29 19:25:31,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:25:31,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2020-11-29 19:25:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-11-29 19:25:31,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:25:31,256 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2020-11-29 19:25:31,264 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 19:25:31,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:25:31 ImpRootNode [2020-11-29 19:25:31,446 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:25:31,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:25:31,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:25:31,447 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:25:31,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:25:28" (3/4) ... [2020-11-29 19:25:31,450 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:25:31,455 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-11-29 19:25:31,470 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-29 19:25:31,470 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:25:31,471 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:25:31,471 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:25:31,515 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_38fb4dad-c8e6-42f1-8301-d93b09a73c78/bin/ukojak/witness.graphml [2020-11-29 19:25:31,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:25:31,518 INFO L168 Benchmark]: Toolchain (without parser) took 3804.73 ms. Allocated memory was 83.9 MB in the beginning and 125.8 MB in the end (delta: 41.9 MB). Free memory was 52.5 MB in the beginning and 74.0 MB in the end (delta: -21.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,521 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 42.4 MB in the beginning and 42.4 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:25:31,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.50 ms. Allocated memory is still 83.9 MB. Free memory was 52.2 MB in the beginning and 61.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 60.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:25:31,524 INFO L168 Benchmark]: Boogie Preprocessor took 32.49 ms. Allocated memory is still 83.9 MB. Free memory was 60.5 MB in the beginning and 59.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,525 INFO L168 Benchmark]: RCFGBuilder took 425.14 ms. Allocated memory is still 83.9 MB. Free memory was 59.4 MB in the beginning and 46.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,525 INFO L168 Benchmark]: CodeCheck took 2946.47 ms. Allocated memory was 83.9 MB in the beginning and 125.8 MB in the end (delta: 41.9 MB). Free memory was 46.2 MB in the beginning and 76.1 MB in the end (delta: -29.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,526 INFO L168 Benchmark]: Witness Printer took 69.10 ms. Allocated memory is still 125.8 MB. Free memory was 76.1 MB in the beginning and 74.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:31,532 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 112 SDtfs, 44 SDslu, 72 SDs, 0 SdLazy, 368 SolverSat, 176 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 412 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 3588 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 39/48 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 4]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 42.4 MB in the beginning and 42.4 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.50 ms. Allocated memory is still 83.9 MB. Free memory was 52.2 MB in the beginning and 61.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 60.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.49 ms. Allocated memory is still 83.9 MB. Free memory was 60.5 MB in the beginning and 59.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 425.14 ms. Allocated memory is still 83.9 MB. Free memory was 59.4 MB in the beginning and 46.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 2946.47 ms. Allocated memory was 83.9 MB in the beginning and 125.8 MB in the end (delta: 41.9 MB). Free memory was 46.2 MB in the beginning and 76.1 MB in the end (delta: -29.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Witness Printer took 69.10 ms. Allocated memory is still 125.8 MB. Free memory was 76.1 MB in the beginning and 74.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...