./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_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/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_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/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 [2018-11-10 11:57:53,817 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:57:53,818 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:57:53,826 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:57:53,826 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:57:53,827 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:57:53,828 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:57:53,829 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:57:53,830 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:57:53,830 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:57:53,831 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:57:53,831 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:57:53,832 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:57:53,832 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:57:53,833 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:57:53,833 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:57:53,834 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:57:53,835 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:57:53,836 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:57:53,837 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:57:53,838 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:57:53,839 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:57:53,840 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:57:53,840 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:57:53,841 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:57:53,841 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:57:53,842 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:57:53,843 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:57:53,843 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:57:53,844 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:57:53,844 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:57:53,844 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:57:53,845 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:57:53,845 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:57:53,846 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:57:53,846 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:57:53,847 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 11:57:53,856 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:57:53,856 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:57:53,856 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:57:53,857 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:57:53,857 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:57:53,857 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:57:53,857 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:57:53,858 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:57:53,858 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:57:53,858 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:57:53,858 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:57:53,858 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:57:53,858 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:57:53,858 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:57:53,858 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:57:53,859 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:57:53,859 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:57:53,859 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 11:57:53,859 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 11:57:53,859 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:57:53,859 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:57:53,859 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 11:57:53,859 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:57:53,860 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:57:53,860 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:57:53,860 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 11:57:53,860 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:57:53,860 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:57:53,860 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_48a0e882-d190-4417-9ef7-0aee185a4cb3/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 [2018-11-10 11:57:53,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:57:53,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:57:53,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:57:53,897 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:57:53,897 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:57:53,898 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_i20_o20_false-unreach-call_true-termination.c [2018-11-10 11:57:53,944 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/data/3404a39ea/c7570d0e687f45d881f0def0019a8fc0/FLAG539a47f5b [2018-11-10 11:57:54,266 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:57:54,266 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/sv-benchmarks/c/recursive-simple/id_i20_o20_false-unreach-call_true-termination.c [2018-11-10 11:57:54,270 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/data/3404a39ea/c7570d0e687f45d881f0def0019a8fc0/FLAG539a47f5b [2018-11-10 11:57:54,278 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/data/3404a39ea/c7570d0e687f45d881f0def0019a8fc0 [2018-11-10 11:57:54,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:57:54,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:57:54,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:57:54,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:57:54,284 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:57:54,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0d3238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54, skipping insertion in model container [2018-11-10 11:57:54,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:57:54,303 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:57:54,389 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:57:54,392 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:57:54,400 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:57:54,408 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:57:54,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54 WrapperNode [2018-11-10 11:57:54,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:57:54,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:57:54,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:57:54,409 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:57:54,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:57:54,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:57:54,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:57:54,434 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:57:54,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:57:54,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:57:54,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:57:54,447 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:57:54,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:57:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 11:57:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:57:54,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:57:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-10 11:57:54,534 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-10 11:57:54,663 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:57:54,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:57:54 BoogieIcfgContainer [2018-11-10 11:57:54,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:57:54,664 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 11:57:54,664 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 11:57:54,674 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 11:57:54,675 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:57:54" (1/1) ... [2018-11-10 11:57:54,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:57:54,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:57:54,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-10 11:57:54,720 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-10 11:57:54,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 11:57:54,725 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:57:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:57:54,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:57:54,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:57:54,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2018-11-10 11:57:54,893 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-10 11:57:54,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 11:57:54,893 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:57:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:57:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 11:57:55,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:57:55,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2018-11-10 11:57:55,025 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-11-10 11:57:55,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 11:57:55,026 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:57:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:57:55,080 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 11:57:55,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:57:55,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2018-11-10 11:57:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-11-10 11:57:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 11:57:55,158 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:57:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:57:55,312 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 11:57:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:57:56,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 35 states and 56 transitions. [2018-11-10 11:57:56,033 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2018-11-10 11:57:56,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 11:57:56,034 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:57:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:57:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-10 11:57:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:57:56,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 38 states and 64 transitions. [2018-11-10 11:57:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 64 transitions. [2018-11-10 11:57:56,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 11:57:56,389 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:57:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:57:56,411 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-10 11:57:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:57:56,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 41 states and 74 transitions. [2018-11-10 11:57:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2018-11-10 11:57:56,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 11:57:56,608 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:57:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:57:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-10 11:57:58,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:57:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 57 states and 107 transitions. [2018-11-10 11:57:58,231 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 107 transitions. [2018-11-10 11:57:58,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-10 11:57:58,232 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:57:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:57:58,431 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-10 11:57:59,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:57:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 73 states and 137 transitions. [2018-11-10 11:57:59,871 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 137 transitions. [2018-11-10 11:57:59,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-10 11:57:59,873 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:57:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-11-10 11:58:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 87 states and 164 transitions. [2018-11-10 11:58:01,725 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 164 transitions. [2018-11-10 11:58:01,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-10 11:58:01,726 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:01,750 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-11-10 11:58:01,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 89 states and 165 transitions. [2018-11-10 11:58:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 165 transitions. [2018-11-10 11:58:01,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 11:58:01,943 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-10 11:58:02,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:02,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 92 states and 174 transitions. [2018-11-10 11:58:02,724 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 174 transitions. [2018-11-10 11:58:02,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 11:58:02,725 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-10 11:58:03,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:03,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 98 states and 188 transitions. [2018-11-10 11:58:03,451 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 188 transitions. [2018-11-10 11:58:03,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 11:58:03,452 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:03,474 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-10 11:58:03,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:03,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 101 states and 200 transitions. [2018-11-10 11:58:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 200 transitions. [2018-11-10 11:58:03,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 11:58:03,883 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-10 11:58:04,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:04,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 104 states and 215 transitions. [2018-11-10 11:58:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 215 transitions. [2018-11-10 11:58:04,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-10 11:58:04,287 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-10 11:58:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 107 states and 225 transitions. [2018-11-10 11:58:04,899 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 225 transitions. [2018-11-10 11:58:04,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-10 11:58:04,900 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-10 11:58:06,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 116 states and 255 transitions. [2018-11-10 11:58:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 255 transitions. [2018-11-10 11:58:06,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-10 11:58:06,212 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:06,233 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-10 11:58:06,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:06,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 119 states and 272 transitions. [2018-11-10 11:58:06,634 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 272 transitions. [2018-11-10 11:58:06,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-10 11:58:06,635 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-10 11:58:07,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:07,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 122 states and 283 transitions. [2018-11-10 11:58:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 283 transitions. [2018-11-10 11:58:07,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-10 11:58:07,255 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-10 11:58:08,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:08,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 131 states and 317 transitions. [2018-11-10 11:58:08,643 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 317 transitions. [2018-11-10 11:58:08,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-10 11:58:08,644 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-10 11:58:09,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:09,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 134 states and 336 transitions. [2018-11-10 11:58:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 336 transitions. [2018-11-10 11:58:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-10 11:58:09,155 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-11-10 11:58:09,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:09,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 137 states and 348 transitions. [2018-11-10 11:58:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 348 transitions. [2018-11-10 11:58:09,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-10 11:58:09,856 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:09,878 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-11-10 11:58:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 146 states and 386 transitions. [2018-11-10 11:58:11,365 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 386 transitions. [2018-11-10 11:58:11,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-10 11:58:11,366 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:11,386 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-11-10 11:58:11,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:11,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 149 states and 407 transitions. [2018-11-10 11:58:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 407 transitions. [2018-11-10 11:58:11,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-10 11:58:11,946 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2018-11-10 11:58:19,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:19,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 175 states and 486 transitions. [2018-11-10 11:58:19,150 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 486 transitions. [2018-11-10 11:58:19,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-10 11:58:19,151 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2018-11-10 11:58:19,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:19,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 177 states and 487 transitions. [2018-11-10 11:58:19,515 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 487 transitions. [2018-11-10 11:58:19,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-10 11:58:19,516 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:20,039 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-11-10 11:58:25,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:25,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 203 states and 561 transitions. [2018-11-10 11:58:25,950 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 561 transitions. [2018-11-10 11:58:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-10 11:58:25,951 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2018-11-10 11:58:26,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:26,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 205 states and 562 transitions. [2018-11-10 11:58:26,353 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 562 transitions. [2018-11-10 11:58:26,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-10 11:58:26,353 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2018-11-10 11:58:33,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:33,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 231 states and 636 transitions. [2018-11-10 11:58:33,569 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 636 transitions. [2018-11-10 11:58:33,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-10 11:58:33,570 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:33,584 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2018-11-10 11:58:33,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:33,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 233 states and 637 transitions. [2018-11-10 11:58:33,955 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 637 transitions. [2018-11-10 11:58:33,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-10 11:58:33,956 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:34,685 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-11-10 11:58:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:41,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 256 states and 706 transitions. [2018-11-10 11:58:41,270 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 706 transitions. [2018-11-10 11:58:41,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-10 11:58:41,271 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:41,292 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-11-10 11:58:42,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:42,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 259 states and 711 transitions. [2018-11-10 11:58:42,104 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 711 transitions. [2018-11-10 11:58:42,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-10 11:58:42,105 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-11-10 11:58:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 261 states and 712 transitions. [2018-11-10 11:58:42,564 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 712 transitions. [2018-11-10 11:58:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-10 11:58:42,565 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:43,341 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-11-10 11:58:51,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:51,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 287 states and 786 transitions. [2018-11-10 11:58:51,582 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 786 transitions. [2018-11-10 11:58:51,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-10 11:58:51,583 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-11-10 11:58:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:52,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 289 states and 787 transitions. [2018-11-10 11:58:52,066 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 787 transitions. [2018-11-10 11:58:52,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-10 11:58:52,067 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:53,185 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-11-10 11:58:55,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 292 states and 800 transitions. [2018-11-10 11:58:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 800 transitions. [2018-11-10 11:58:55,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-10 11:58:55,016 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-11-10 11:58:56,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:56,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 295 states and 811 transitions. [2018-11-10 11:58:56,076 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 811 transitions. [2018-11-10 11:58:56,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-10 11:58:56,077 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:56,105 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-11-10 11:58:57,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:57,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 298 states and 822 transitions. [2018-11-10 11:58:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 822 transitions. [2018-11-10 11:58:57,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-10 11:58:57,114 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:57,141 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-11-10 11:58:58,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 301 states and 833 transitions. [2018-11-10 11:58:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 833 transitions. [2018-11-10 11:58:58,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-10 11:58:58,114 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:58,136 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-11-10 11:58:59,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:58:59,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 304 states and 844 transitions. [2018-11-10 11:58:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 844 transitions. [2018-11-10 11:58:59,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-10 11:58:59,123 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:58:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:58:59,147 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-11-10 11:59:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 307 states and 877 transitions. [2018-11-10 11:59:00,320 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 877 transitions. [2018-11-10 11:59:00,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-10 11:59:00,321 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:59:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-11-10 11:59:03,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:03,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 316 states and 920 transitions. [2018-11-10 11:59:03,101 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 920 transitions. [2018-11-10 11:59:03,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-10 11:59:03,102 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:59:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-11-10 11:59:04,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:04,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 319 states and 943 transitions. [2018-11-10 11:59:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 943 transitions. [2018-11-10 11:59:04,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-10 11:59:04,320 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:59:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-11-10 11:59:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:05,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 322 states and 957 transitions. [2018-11-10 11:59:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 957 transitions. [2018-11-10 11:59:05,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-10 11:59:05,796 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:59:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-11-10 11:59:11,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:11,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 337 states and 1040 transitions. [2018-11-10 11:59:11,013 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 1040 transitions. [2018-11-10 11:59:11,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-10 11:59:11,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:59:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-11-10 11:59:14,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:14,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 346 states and 1087 transitions. [2018-11-10 11:59:14,106 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 1087 transitions. [2018-11-10 11:59:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-10 11:59:14,107 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:59:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-11-10 11:59:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 349 states and 1112 transitions. [2018-11-10 11:59:15,192 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 1112 transitions. [2018-11-10 11:59:15,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-10 11:59:15,193 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:59:15,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-11-10 11:59:16,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:16,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 352 states and 1127 transitions. [2018-11-10 11:59:16,757 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 1127 transitions. [2018-11-10 11:59:16,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-10 11:59:16,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:59:16,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-11-10 11:59:22,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:22,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 367 states and 1216 transitions. [2018-11-10 11:59:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 1216 transitions. [2018-11-10 11:59:22,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-10 11:59:22,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:59:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-11-10 11:59:25,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:25,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 376 states and 1267 transitions. [2018-11-10 11:59:25,783 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1267 transitions. [2018-11-10 11:59:25,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-10 11:59:25,783 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:59:25,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2018-11-10 11:59:26,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:59:26,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 379 states and 1294 transitions. [2018-11-10 11:59:26,914 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 1294 transitions. [2018-11-10 11:59:26,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-10 11:59:26,915 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:59:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:59:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:59:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:59:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:59:27,021 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 51 iterations. [2018-11-10 11:59:27,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 11:59:27 ImpRootNode [2018-11-10 11:59:27,055 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 11:59:27,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:59:27,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:59:27,056 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:59:27,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:57:54" (3/4) ... [2018-11-10 11:59:27,059 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 11:59:27,120 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_48a0e882-d190-4417-9ef7-0aee185a4cb3/bin-2019/ukojak/witness.graphml [2018-11-10 11:59:27,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:59:27,121 INFO L168 Benchmark]: Toolchain (without parser) took 92840.29 ms. Allocated memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: 1.5 GB). Free memory was 954.9 MB in the beginning and 1.5 GB in the end (delta: -556.2 MB). Peak memory consumption was 910.2 MB. Max. memory is 11.5 GB. [2018-11-10 11:59:27,122 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-10 11:59:27,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 127.58 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:59:27,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.77 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:59:27,123 INFO L168 Benchmark]: Boogie Preprocessor took 12.43 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:59:27,123 INFO L168 Benchmark]: RCFGBuilder took 216.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:59:27,124 INFO L168 Benchmark]: CodeCheck took 92391.16 ms. Allocated memory was 1.1 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -406.5 MB). Peak memory consumption was 943.5 MB. Max. memory is 11.5 GB. [2018-11-10 11:59:27,124 INFO L168 Benchmark]: Witness Printer took 64.40 ms. Allocated memory is still 2.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-10 11:59:27,131 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, 92.3s OverallTime, 51 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 347608396 SDslu, 695216792 SDs, 0 SdLazy, -1494691610 SolverSat, -1850119234 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89937 GetRequests, 86397 SyntacticMatches, 2466 SemanticMatches, 1074 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523428 ImplicationChecksByTransitivity, 84.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 4179 NumberOfCodeBlocks, 4179 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 4000 ConstructedInterpolants, 0 QuantifiedInterpolants, 905896 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 50 InterpolantComputations, 1 PerfectInterpolantSequences, 13236/26472 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 0.14 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 127.58 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.77 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.43 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 216.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * CodeCheck took 92391.16 ms. Allocated memory was 1.1 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -406.5 MB). Peak memory consumption was 943.5 MB. Max. memory is 11.5 GB. * Witness Printer took 64.40 ms. Allocated memory is still 2.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...