./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/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 946ca263ceeb3f3c46f4e6e15a44f3d7052d43ca ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:14:00,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:14:00,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:14:00,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:14:00,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:14:00,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:14:00,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:14:00,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:14:00,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:14:00,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:14:00,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:14:00,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:14:00,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:14:00,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:14:00,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:14:00,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:14:00,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:14:00,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:14:00,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:14:00,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:14:00,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:14:00,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:14:00,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:14:00,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:14:00,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:14:00,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:14:00,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:14:00,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:14:00,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:14:00,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:14:00,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:14:00,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:14:00,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:14:00,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:14:00,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:14:00,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:14:00,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:14:00,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:14:00,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:14:00,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:14:00,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:14:00,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:14:00,462 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:14:00,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:14:00,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:14:00,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:14:00,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:14:00,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:14:00,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:14:00,465 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:14:00,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:14:00,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:14:00,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:14:00,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:14:00,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:14:00,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:14:00,466 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:14:00,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:14:00,466 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:14:00,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:14:00,466 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:14:00,467 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:14:00,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:14:00,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:14:00,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:14:00,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:14:00,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:14:00,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:14:00,468 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:14:00,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:14:00,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:14:00,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_93816e88-31dc-44f8-bd8b-352b188b0fd1/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(__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 -> 946ca263ceeb3f3c46f4e6e15a44f3d7052d43ca [2019-10-22 10:14:00,495 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:14:00,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:14:00,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:14:00,514 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:14:00,514 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:14:00,515 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2019-10-22 10:14:00,574 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/data/0614c90f8/d4c1cc5885e149f58320375a9a5ba498/FLAGa991ea6e4 [2019-10-22 10:14:00,950 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:14:00,950 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2019-10-22 10:14:00,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/data/0614c90f8/d4c1cc5885e149f58320375a9a5ba498/FLAGa991ea6e4 [2019-10-22 10:14:00,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/data/0614c90f8/d4c1cc5885e149f58320375a9a5ba498 [2019-10-22 10:14:00,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:14:00,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:14:00,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:14:00,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:14:00,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:14:00,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:00" (1/1) ... [2019-10-22 10:14:00,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22308fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:00, skipping insertion in model container [2019-10-22 10:14:00,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:00" (1/1) ... [2019-10-22 10:14:00,987 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:14:01,002 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:14:01,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:14:01,156 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:14:01,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:14:01,271 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:14:01,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01 WrapperNode [2019-10-22 10:14:01,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:14:01,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:14:01,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:14:01,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:14:01,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01" (1/1) ... [2019-10-22 10:14:01,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01" (1/1) ... [2019-10-22 10:14:01,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:14:01,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:14:01,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:14:01,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:14:01,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01" (1/1) ... [2019-10-22 10:14:01,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01" (1/1) ... [2019-10-22 10:14:01,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01" (1/1) ... [2019-10-22 10:14:01,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01" (1/1) ... [2019-10-22 10:14:01,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01" (1/1) ... [2019-10-22 10:14:01,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01" (1/1) ... [2019-10-22 10:14:01,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01" (1/1) ... [2019-10-22 10:14:01,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:14:01,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:14:01,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:14:01,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:14:01,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/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 [2019-10-22 10:14:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:14:01,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:14:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-10-22 10:14:01,387 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-10-22 10:14:01,504 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:14:01,504 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 10:14:01,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:01 BoogieIcfgContainer [2019-10-22 10:14:01,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:14:01,506 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:14:01,506 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:14:01,516 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:14:01,517 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:01" (1/1) ... [2019-10-22 10:14:01,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:14:01,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:01,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2019-10-22 10:14:01,564 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-10-22 10:14:01,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:14:01,570 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:01,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:01,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2019-10-22 10:14:01,913 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-10-22 10:14:01,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 10:14:01,914 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:01,956 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:14:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:02,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2019-10-22 10:14:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-10-22 10:14:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 10:14:02,214 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-22 10:14:02,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:02,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2019-10-22 10:14:02,381 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2019-10-22 10:14:02,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 10:14:02,384 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:02,435 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 10:14:02,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2019-10-22 10:14:02,555 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2019-10-22 10:14:02,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 10:14:02,556 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-22 10:14:02,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 28 states and 44 transitions. [2019-10-22 10:14:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2019-10-22 10:14:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-22 10:14:02,752 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-22 10:14:02,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:02,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 53 transitions. [2019-10-22 10:14:02,954 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2019-10-22 10:14:02,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 10:14:02,958 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-22 10:14:03,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:03,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 34 states and 63 transitions. [2019-10-22 10:14:03,185 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2019-10-22 10:14:03,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 10:14:03,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-22 10:14:03,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:03,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 37 states and 74 transitions. [2019-10-22 10:14:03,486 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2019-10-22 10:14:03,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-22 10:14:03,487 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-22 10:14:03,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:03,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 40 states and 86 transitions. [2019-10-22 10:14:03,782 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 86 transitions. [2019-10-22 10:14:03,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-22 10:14:03,784 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:03,887 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-10-22 10:14:04,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:04,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 43 states and 99 transitions. [2019-10-22 10:14:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 99 transitions. [2019-10-22 10:14:04,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-22 10:14:04,049 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2019-10-22 10:14:04,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 46 states and 113 transitions. [2019-10-22 10:14:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 113 transitions. [2019-10-22 10:14:04,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-22 10:14:04,301 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2019-10-22 10:14:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:04,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 49 states and 128 transitions. [2019-10-22 10:14:04,516 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 128 transitions. [2019-10-22 10:14:04,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-22 10:14:04,518 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2019-10-22 10:14:04,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:04,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 52 states and 144 transitions. [2019-10-22 10:14:04,777 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 144 transitions. [2019-10-22 10:14:04,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-22 10:14:04,781 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2019-10-22 10:14:05,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:05,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 55 states and 161 transitions. [2019-10-22 10:14:05,050 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 161 transitions. [2019-10-22 10:14:05,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-22 10:14:05,053 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2019-10-22 10:14:05,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:05,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 58 states and 179 transitions. [2019-10-22 10:14:05,339 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 179 transitions. [2019-10-22 10:14:05,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-22 10:14:05,342 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2019-10-22 10:14:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 107 states and 469 transitions. [2019-10-22 10:14:18,637 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 469 transitions. [2019-10-22 10:14:18,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-22 10:14:18,638 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2019-10-22 10:14:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 59 states and 61 transitions. [2019-10-22 10:14:22,828 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2019-10-22 10:14:22,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:14:22,829 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 18 iterations. [2019-10-22 10:14:22,839 INFO L771 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-10-22 10:14:23,003 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2019-10-22 10:14:23,154 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2019-10-22 10:14:23,282 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1 [2019-10-22 10:14:23,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:14:23 ImpRootNode [2019-10-22 10:14:23,283 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:14:23,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:14:23,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:14:23,283 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:14:23,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:01" (3/4) ... [2019-10-22 10:14:23,286 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:14:23,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2019-10-22 10:14:23,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 10:14:23,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 10:14:23,328 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_93816e88-31dc-44f8-bd8b-352b188b0fd1/bin/ukojak/witness.graphml [2019-10-22 10:14:23,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:14:23,330 INFO L168 Benchmark]: Toolchain (without parser) took 22358.74 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 372.8 MB). Free memory was 946.0 MB in the beginning and 1.3 GB in the end (delta: -316.4 MB). Peak memory consumption was 56.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:23,330 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:14:23,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -198.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:23,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.56 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. [2019-10-22 10:14:23,331 INFO L168 Benchmark]: Boogie Preprocessor took 16.65 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. [2019-10-22 10:14:23,332 INFO L168 Benchmark]: RCFGBuilder took 186.56 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:23,332 INFO L168 Benchmark]: CodeCheck took 21776.99 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 223.3 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -149.1 MB). Peak memory consumption was 455.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:23,333 INFO L168 Benchmark]: Witness Printer took 45.05 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:23,335 INFO L335 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. Result: SAFE, OverallTime: 21.2s, OverallIterations: 18, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 917512 SDtfs, 852076 SDslu, 1376464 SDs, 0 SdLazy, 3938262 SolverSat, 788534 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15716 GetRequests, 14839 SyntacticMatches, 597 SemanticMatches, 280 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30959 ImplicationChecksByTransitivity, 16.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 969 NumberOfCodeBlocks, 969 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 952 ConstructedInterpolants, 0 QuantifiedInterpolants, 189584 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 2704/4624 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: 13]: 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 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -198.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.56 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. * Boogie Preprocessor took 16.65 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 186.56 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 21776.99 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 223.3 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -149.1 MB). Peak memory consumption was 455.5 MB. Max. memory is 11.5 GB. * Witness Printer took 45.05 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB 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...