./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id_i20_o20_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i20_o20_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/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 7d05936c4bb1bb97a4b24ebc11d02c0e844c743b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 20:55:52,542 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:55:52,544 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:55:52,553 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:55:52,553 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:55:52,554 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:55:52,555 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:55:52,556 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:55:52,558 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:55:52,559 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:55:52,560 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:55:52,560 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:55:52,560 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:55:52,561 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:55:52,562 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:55:52,571 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:55:52,571 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:55:52,573 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:55:52,574 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:55:52,575 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:55:52,576 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:55:52,578 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:55:52,580 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:55:52,580 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:55:52,580 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:55:52,581 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:55:52,582 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:55:52,585 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:55:52,586 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:55:52,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:55:52,587 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:55:52,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:55:52,587 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:55:52,587 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:55:52,588 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:55:52,589 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:55:52,589 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 20:55:52,602 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:55:52,602 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:55:52,603 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:55:52,603 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 20:55:52,604 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 20:55:52,604 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 20:55:52,604 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:55:52,604 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:55:52,604 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:55:52,604 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:55:52,605 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:55:52,605 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:55:52,605 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:55:52,605 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:55:52,605 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:55:52,605 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:55:52,605 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:55:52,606 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 20:55:52,606 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 20:55:52,606 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:55:52,606 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:55:52,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 20:55:52,606 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:55:52,606 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:55:52,607 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:55:52,607 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 20:55:52,607 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:55:52,607 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:55:52,607 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_d8b66dc5-2b93-48d9-adac-4386a59ecc09/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 -> 7d05936c4bb1bb97a4b24ebc11d02c0e844c743b [2018-10-26 20:55:52,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:55:52,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:55:52,663 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:55:52,664 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:55:52,664 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:55:52,665 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_i20_o20_false-unreach-call_true-termination.c [2018-10-26 20:55:52,722 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/data/8efbda67d/8c412b48ca3d4b86a0551cf9057b16c4/FLAGcb105ff95 [2018-10-26 20:55:53,096 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:55:53,096 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/sv-benchmarks/c/recursive-simple/id_i20_o20_false-unreach-call_true-termination.c [2018-10-26 20:55:53,102 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/data/8efbda67d/8c412b48ca3d4b86a0551cf9057b16c4/FLAGcb105ff95 [2018-10-26 20:55:53,114 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/data/8efbda67d/8c412b48ca3d4b86a0551cf9057b16c4 [2018-10-26 20:55:53,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:55:53,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 20:55:53,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:55:53,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:55:53,122 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:55:53,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42bb1323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53, skipping insertion in model container [2018-10-26 20:55:53,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:55:53,157 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:55:53,298 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:55:53,301 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:55:53,311 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:55:53,321 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:55:53,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53 WrapperNode [2018-10-26 20:55:53,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:55:53,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:55:53,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:55:53,323 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:55:53,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:55:53,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:55:53,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:55:53,353 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:55:53,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:55:53,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:55:53,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:55:53,367 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:55:53,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:55:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/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 [2018-10-26 20:55:53,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:55:53,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:55:53,468 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-10-26 20:55:53,468 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-10-26 20:55:53,744 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:55:53,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:55:53 BoogieIcfgContainer [2018-10-26 20:55:53,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:55:53,745 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 20:55:53,745 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 20:55:53,756 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 20:55:53,756 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:55:53" (1/1) ... [2018-10-26 20:55:53,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:55:53,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:55:53,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-10-26 20:55:53,859 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-10-26 20:55:53,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 20:55:53,864 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:55:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:55:54,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:55:54,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:55:54,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2018-10-26 20:55:54,204 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-10-26 20:55:54,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 20:55:54,204 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:55:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:55:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 20:55:54,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:55:54,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2018-10-26 20:55:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-10-26 20:55:54,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 20:55:54,622 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:55:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:55:54,692 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-26 20:55:54,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:55:54,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2018-10-26 20:55:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-10-26 20:55:54,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 20:55:54,920 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:55:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:55:55,497 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-26 20:55:56,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:55:56,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 35 states and 56 transitions. [2018-10-26 20:55:56,670 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2018-10-26 20:55:56,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 20:55:56,671 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:55:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:55:56,779 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-26 20:55:57,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:55:57,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 38 states and 64 transitions. [2018-10-26 20:55:57,143 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 64 transitions. [2018-10-26 20:55:57,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 20:55:57,145 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:55:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:55:57,176 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-26 20:55:57,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:55:57,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 41 states and 74 transitions. [2018-10-26 20:55:57,435 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2018-10-26 20:55:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-26 20:55:57,436 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:55:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:55:57,670 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-10-26 20:55:58,548 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-26 20:56:00,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:00,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 57 states and 107 transitions. [2018-10-26 20:56:00,999 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 107 transitions. [2018-10-26 20:56:01,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-26 20:56:01,001 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-10-26 20:56:02,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:02,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 68 states and 129 transitions. [2018-10-26 20:56:02,654 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 129 transitions. [2018-10-26 20:56:02,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-26 20:56:02,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:02,694 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-10-26 20:56:03,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 73 states and 137 transitions. [2018-10-26 20:56:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 137 transitions. [2018-10-26 20:56:03,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-26 20:56:03,439 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-10-26 20:56:06,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:06,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 89 states and 165 transitions. [2018-10-26 20:56:06,215 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 165 transitions. [2018-10-26 20:56:06,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-26 20:56:06,217 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-26 20:56:07,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:07,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 92 states and 174 transitions. [2018-10-26 20:56:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 174 transitions. [2018-10-26 20:56:07,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-26 20:56:07,278 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-26 20:56:08,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:08,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 98 states and 188 transitions. [2018-10-26 20:56:08,360 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 188 transitions. [2018-10-26 20:56:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-26 20:56:08,361 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-26 20:56:08,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:08,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 101 states and 200 transitions. [2018-10-26 20:56:08,987 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 200 transitions. [2018-10-26 20:56:08,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-26 20:56:08,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-26 20:56:09,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:09,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 104 states and 215 transitions. [2018-10-26 20:56:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 215 transitions. [2018-10-26 20:56:09,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-26 20:56:09,568 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:09,820 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-10-26 20:56:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:10,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 107 states and 225 transitions. [2018-10-26 20:56:10,364 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 225 transitions. [2018-10-26 20:56:10,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-26 20:56:10,364 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-10-26 20:56:12,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:12,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 116 states and 255 transitions. [2018-10-26 20:56:12,009 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 255 transitions. [2018-10-26 20:56:12,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-26 20:56:12,010 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-10-26 20:56:12,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 119 states and 272 transitions. [2018-10-26 20:56:12,731 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 272 transitions. [2018-10-26 20:56:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-26 20:56:12,732 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-10-26 20:56:13,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 122 states and 283 transitions. [2018-10-26 20:56:13,792 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 283 transitions. [2018-10-26 20:56:13,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-26 20:56:13,793 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:13,837 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-10-26 20:56:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 131 states and 317 transitions. [2018-10-26 20:56:15,538 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 317 transitions. [2018-10-26 20:56:15,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-26 20:56:15,539 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-10-26 20:56:17,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:17,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 134 states and 336 transitions. [2018-10-26 20:56:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 336 transitions. [2018-10-26 20:56:17,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-26 20:56:17,127 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:17,271 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-10-26 20:56:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 137 states and 348 transitions. [2018-10-26 20:56:18,214 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 348 transitions. [2018-10-26 20:56:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-26 20:56:18,215 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-10-26 20:56:20,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:20,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 146 states and 386 transitions. [2018-10-26 20:56:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 386 transitions. [2018-10-26 20:56:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-26 20:56:20,226 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:20,250 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-10-26 20:56:21,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:21,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 149 states and 407 transitions. [2018-10-26 20:56:21,096 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 407 transitions. [2018-10-26 20:56:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-26 20:56:21,097 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2018-10-26 20:56:31,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:31,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 177 states and 487 transitions. [2018-10-26 20:56:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 487 transitions. [2018-10-26 20:56:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-26 20:56:31,350 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:32,023 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-10-26 20:56:39,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:39,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 203 states and 561 transitions. [2018-10-26 20:56:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 561 transitions. [2018-10-26 20:56:39,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-26 20:56:39,548 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:39,575 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-10-26 20:56:40,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:40,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 205 states and 562 transitions. [2018-10-26 20:56:40,047 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 562 transitions. [2018-10-26 20:56:40,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-26 20:56:40,048 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2018-10-26 20:56:49,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:49,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 231 states and 636 transitions. [2018-10-26 20:56:49,398 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 636 transitions. [2018-10-26 20:56:49,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-10-26 20:56:49,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2018-10-26 20:56:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:56:50,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 233 states and 637 transitions. [2018-10-26 20:56:50,476 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 637 transitions. [2018-10-26 20:56:50,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-26 20:56:50,483 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:56:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:56:51,821 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-10-26 20:57:01,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:01,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 259 states and 711 transitions. [2018-10-26 20:57:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 711 transitions. [2018-10-26 20:57:01,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-26 20:57:01,674 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-10-26 20:57:03,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:03,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 261 states and 712 transitions. [2018-10-26 20:57:03,143 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 712 transitions. [2018-10-26 20:57:03,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-26 20:57:03,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:04,222 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-10-26 20:57:08,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:08,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 269 states and 736 transitions. [2018-10-26 20:57:08,033 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 736 transitions. [2018-10-26 20:57:08,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-26 20:57:08,035 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:08,065 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-10-26 20:57:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:17,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 289 states and 787 transitions. [2018-10-26 20:57:17,857 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 787 transitions. [2018-10-26 20:57:17,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-26 20:57:17,858 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:19,273 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-10-26 20:57:21,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 292 states and 800 transitions. [2018-10-26 20:57:21,878 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 800 transitions. [2018-10-26 20:57:21,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-26 20:57:21,880 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:21,919 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-10-26 20:57:23,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:23,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 295 states and 811 transitions. [2018-10-26 20:57:23,383 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 811 transitions. [2018-10-26 20:57:23,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-26 20:57:23,384 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:23,418 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-10-26 20:57:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:24,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 298 states and 822 transitions. [2018-10-26 20:57:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 822 transitions. [2018-10-26 20:57:24,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-26 20:57:24,870 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:24,908 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-10-26 20:57:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:26,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 301 states and 833 transitions. [2018-10-26 20:57:26,381 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 833 transitions. [2018-10-26 20:57:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-26 20:57:26,382 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:26,424 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-10-26 20:57:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:28,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 304 states and 844 transitions. [2018-10-26 20:57:28,355 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 844 transitions. [2018-10-26 20:57:28,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-26 20:57:28,356 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-10-26 20:57:29,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:29,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 307 states and 877 transitions. [2018-10-26 20:57:29,774 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 877 transitions. [2018-10-26 20:57:29,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-26 20:57:29,775 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:29,802 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-10-26 20:57:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:33,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 316 states and 920 transitions. [2018-10-26 20:57:33,864 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 920 transitions. [2018-10-26 20:57:33,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-26 20:57:33,865 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:33,900 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-10-26 20:57:35,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 319 states and 943 transitions. [2018-10-26 20:57:35,354 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 943 transitions. [2018-10-26 20:57:35,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-26 20:57:35,355 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:35,682 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-10-26 20:57:37,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:37,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 322 states and 957 transitions. [2018-10-26 20:57:37,407 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 957 transitions. [2018-10-26 20:57:37,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-26 20:57:37,408 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-10-26 20:57:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 337 states and 1040 transitions. [2018-10-26 20:57:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 1040 transitions. [2018-10-26 20:57:44,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-26 20:57:44,532 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:44,561 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-10-26 20:57:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:48,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 346 states and 1087 transitions. [2018-10-26 20:57:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 1087 transitions. [2018-10-26 20:57:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-26 20:57:48,636 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-10-26 20:57:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 349 states and 1112 transitions. [2018-10-26 20:57:50,398 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 1112 transitions. [2018-10-26 20:57:50,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-26 20:57:50,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:50,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-10-26 20:57:52,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:52,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 352 states and 1127 transitions. [2018-10-26 20:57:52,248 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 1127 transitions. [2018-10-26 20:57:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-26 20:57:52,248 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-10-26 20:57:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:57:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 367 states and 1216 transitions. [2018-10-26 20:57:59,592 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 1216 transitions. [2018-10-26 20:57:59,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-26 20:57:59,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:57:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:57:59,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-10-26 20:58:04,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:58:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 376 states and 1267 transitions. [2018-10-26 20:58:04,479 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1267 transitions. [2018-10-26 20:58:04,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-26 20:58:04,480 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:58:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:58:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-10-26 20:58:06,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:58:06,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 379 states and 1294 transitions. [2018-10-26 20:58:06,543 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 1294 transitions. [2018-10-26 20:58:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-26 20:58:06,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:58:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:58:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:58:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:58:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:58:06,693 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 49 iterations. [2018-10-26 20:58:06,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 08:58:06 ImpRootNode [2018-10-26 20:58:06,751 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 20:58:06,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:58:06,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:58:06,751 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:58:06,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:55:53" (3/4) ... [2018-10-26 20:58:06,756 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 20:58:06,863 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d8b66dc5-2b93-48d9-adac-4386a59ecc09/bin-2019/ukojak/witness.graphml [2018-10-26 20:58:06,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:58:06,864 INFO L168 Benchmark]: Toolchain (without parser) took 133747.33 ms. Allocated memory was 1.0 GB in the beginning and 2.6 GB in the end (delta: 1.5 GB). Free memory was 960.7 MB in the beginning and 861.1 MB in the end (delta: 99.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2018-10-26 20:58:06,865 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:58:06,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.70 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 948.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-10-26 20:58:06,869 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.48 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:58:06,869 INFO L168 Benchmark]: Boogie Preprocessor took 13.75 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 943.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 20:58:06,870 INFO L168 Benchmark]: RCFGBuilder took 378.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-10-26 20:58:06,870 INFO L168 Benchmark]: CodeCheck took 133005.87 ms. Allocated memory was 1.2 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.1 GB in the beginning and 861.1 MB in the end (delta: 276.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2018-10-26 20:58:06,871 INFO L168 Benchmark]: Witness Printer took 112.43 ms. Allocated memory is still 2.6 GB. Free memory is still 861.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:58:06,874 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 2 procedures, 16 locations, 1 error locations. UNSAFE Result, 132.9s OverallTime, 49 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 1384125772 SDslu, -1526715752 SDs, 0 SdLazy, -4927258 SolverSat, -1820496962 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 175.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85595 GetRequests, 82147 SyntacticMatches, 2374 SemanticMatches, 1074 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523355 ImplicationChecksByTransitivity, 120.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 3993 NumberOfCodeBlocks, 3993 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 3816 ConstructedInterpolants, 0 QuantifiedInterpolants, 872760 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 48 InterpolantComputations, 1 PerfectInterpolantSequences, 12649/25298 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 - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int input = 20; [L11] CALL, EXPR id(input) VAL [\old(x)=20] [L5] COND FALSE !(x==0) VAL [\old(x)=20, x=20] [L6] CALL, EXPR id(x-1) VAL [\old(x)=19] [L5] COND FALSE !(x==0) VAL [\old(x)=19, x=19] [L6] CALL, EXPR id(x-1) VAL [\old(x)=18] [L5] COND FALSE !(x==0) VAL [\old(x)=18, x=18] [L6] CALL, EXPR id(x-1) VAL [\old(x)=17] [L5] COND FALSE !(x==0) VAL [\old(x)=17, x=17] [L6] CALL, EXPR id(x-1) VAL [\old(x)=16] [L5] COND FALSE !(x==0) VAL [\old(x)=16, x=16] [L6] CALL, EXPR id(x-1) VAL [\old(x)=15] [L5] COND FALSE !(x==0) VAL [\old(x)=15, x=15] [L6] CALL, EXPR id(x-1) VAL [\old(x)=14] [L5] COND FALSE !(x==0) VAL [\old(x)=14, x=14] [L6] CALL, EXPR id(x-1) VAL [\old(x)=13] [L5] COND FALSE !(x==0) VAL [\old(x)=13, x=13] [L6] CALL, EXPR id(x-1) VAL [\old(x)=12] [L5] COND FALSE !(x==0) VAL [\old(x)=12, x=12] [L6] CALL, EXPR id(x-1) VAL [\old(x)=11] [L5] COND FALSE !(x==0) VAL [\old(x)=11, x=11] [L6] CALL, EXPR id(x-1) VAL [\old(x)=10] [L5] COND FALSE !(x==0) VAL [\old(x)=10, x=10] [L6] CALL, EXPR id(x-1) VAL [\old(x)=9] [L5] COND FALSE !(x==0) VAL [\old(x)=9, x=9] [L6] CALL, EXPR id(x-1) VAL [\old(x)=8] [L5] COND FALSE !(x==0) VAL [\old(x)=8, x=8] [L6] CALL, EXPR id(x-1) VAL [\old(x)=7] [L5] COND FALSE !(x==0) VAL [\old(x)=7, x=7] [L6] CALL, EXPR id(x-1) VAL [\old(x)=6] [L5] COND FALSE !(x==0) VAL [\old(x)=6, x=6] [L6] CALL, EXPR id(x-1) VAL [\old(x)=5] [L5] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L6] CALL, EXPR id(x-1) VAL [\old(x)=4] [L5] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L6] CALL, EXPR id(x-1) VAL [\old(x)=3] [L5] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L6] CALL, EXPR id(x-1) VAL [\old(x)=2] [L5] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L6] CALL, EXPR id(x-1) VAL [\old(x)=1] [L5] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L6] CALL, EXPR id(x-1) VAL [\old(x)=0] [L5] COND TRUE x==0 [L5] RET return 0; VAL [\old(x)=0, \result=0, x=0] [L6] EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=4, id(x-1)=3, x=4] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=5, id(x-1)=4, x=5] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=6, id(x-1)=5, x=6] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=7, id(x-1)=6, x=7] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=8, id(x-1)=7, x=8] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=9, id(x-1)=8, x=9] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=10, id(x-1)=9, x=10] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=11, id(x-1)=10, x=11] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=12, id(x-1)=11, x=12] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=13, id(x-1)=12, x=13] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=14, id(x-1)=13, x=14] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=15, id(x-1)=14, x=15] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=16, id(x-1)=15, x=16] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=17, id(x-1)=16, x=17] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=18, id(x-1)=17, x=18] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=19, id(x-1)=18, x=19] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=20, id(x-1)=19, x=20] [L6] RET return id(x-1) + 1; [L11] EXPR id(input) [L11] int result = id(input); [L12] COND TRUE result == 20 [L13] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 203.70 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 948.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.48 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.75 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 943.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 378.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * CodeCheck took 133005.87 ms. Allocated memory was 1.2 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.1 GB in the beginning and 861.1 MB in the end (delta: 276.5 MB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. * Witness Printer took 112.43 ms. Allocated memory is still 2.6 GB. Free memory is still 861.1 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...