./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label53_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label53_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/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 197209881b4fe70c7fe468e7084aa1de2f7c6240 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 00:09:11,134 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:09:11,135 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:09:11,141 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:09:11,141 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:09:11,142 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:09:11,143 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:09:11,144 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:09:11,145 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:09:11,146 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:09:11,146 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:09:11,147 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:09:11,147 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:09:11,148 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:09:11,149 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:09:11,149 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:09:11,151 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:09:11,152 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:09:11,153 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:09:11,155 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:09:11,155 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:09:11,156 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:09:11,158 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:09:11,158 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:09:11,158 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:09:11,159 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:09:11,160 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:09:11,160 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:09:11,161 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:09:11,162 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:09:11,162 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:09:11,163 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:09:11,163 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:09:11,163 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:09:11,164 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:09:11,164 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:09:11,164 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 00:09:11,175 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:09:11,176 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:09:11,176 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:09:11,176 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 00:09:11,177 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 00:09:11,177 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 00:09:11,177 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:09:11,178 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:09:11,178 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:09:11,178 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:09:11,179 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:09:11,179 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:09:11,179 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:09:11,179 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:09:11,179 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:09:11,179 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:09:11,179 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:09:11,180 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:09:11,180 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 00:09:11,180 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 00:09:11,180 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:09:11,180 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:09:11,180 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 00:09:11,181 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:09:11,181 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:09:11,181 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:09:11,181 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 00:09:11,181 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:09:11,181 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:09:11,183 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_805c627a-fd43-451f-8f59-bd2c1102f3ca/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 -> 197209881b4fe70c7fe468e7084aa1de2f7c6240 [2018-11-23 00:09:11,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:09:11,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:09:11,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:09:11,219 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:09:11,219 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:09:11,220 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem14_label53_true-unreach-call_false-termination.c [2018-11-23 00:09:11,263 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/data/12f29ef77/8aee373b47e241aa926944e9442db1c8/FLAG96c96079d [2018-11-23 00:09:11,726 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:09:11,727 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/sv-benchmarks/c/eca-rers2012/Problem14_label53_true-unreach-call_false-termination.c [2018-11-23 00:09:11,737 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/data/12f29ef77/8aee373b47e241aa926944e9442db1c8/FLAG96c96079d [2018-11-23 00:09:12,242 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/data/12f29ef77/8aee373b47e241aa926944e9442db1c8 [2018-11-23 00:09:12,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:09:12,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:09:12,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:09:12,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:09:12,251 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:09:12,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@108971e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12, skipping insertion in model container [2018-11-23 00:09:12,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:09:12,307 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:09:12,577 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:09:12,581 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:09:12,673 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:09:12,687 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:09:12,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12 WrapperNode [2018-11-23 00:09:12,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:09:12,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:09:12,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:09:12,688 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:09:12,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:09:12,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:09:12,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:09:12,836 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:09:12,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12" (1/1) ... [2018-11-23 00:09:12,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:09:12,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:09:12,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:09:12,892 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:09:12,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:09:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 00:09:12,939 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 00:09:12,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:09:12,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:13:05,275 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:13:05,275 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 00:13:05,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:13:05 BoogieIcfgContainer [2018-11-23 00:13:05,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:13:05,276 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 00:13:05,276 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 00:13:05,286 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 00:13:05,286 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:13:05" (1/1) ... [2018-11-23 00:13:05,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:13:05,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:13:05,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-23 00:13:05,330 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-23 00:13:05,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 00:13:05,333 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:13:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:13:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:13:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:13:05,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-11-23 00:13:05,567 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-11-23 00:13:05,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 00:13:05,570 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:13:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:13:05,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:13:06,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:13:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2018-11-23 00:13:06,284 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2018-11-23 00:13:06,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 00:13:06,284 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:13:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:13:06,921 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 31 [2018-11-23 00:13:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:13:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:13:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2018-11-23 00:13:07,724 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2018-11-23 00:13:07,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 00:13:07,726 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:13:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:13:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:13:08,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:13:08,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 28 states and 51 transitions. [2018-11-23 00:13:08,382 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 51 transitions. [2018-11-23 00:13:08,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 00:13:08,382 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:13:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:13:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:13:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:13:08,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 29 states and 53 transitions. [2018-11-23 00:13:08,956 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 53 transitions. [2018-11-23 00:13:08,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 00:13:08,956 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:13:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:13:09,966 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:13:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:13:31,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 39 states and 87 transitions. [2018-11-23 00:13:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 87 transitions. [2018-11-23 00:13:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 00:13:31,368 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:13:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:13:31,683 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:13:52,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:13:52,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 43 states and 94 transitions. [2018-11-23 00:13:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 94 transitions. [2018-11-23 00:13:52,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 00:13:52,313 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:13:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:13:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:13:53,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:13:53,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 45 states and 98 transitions. [2018-11-23 00:13:53,101 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 98 transitions. [2018-11-23 00:13:53,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 00:13:53,101 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:13:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:13:54,328 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:15:06,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:15:06,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 57 states and 144 transitions. [2018-11-23 00:15:06,891 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 144 transitions. [2018-11-23 00:15:06,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 00:15:06,892 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:15:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:15:07,900 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:15:08,077 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2018-11-23 00:15:18,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:15:18,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 62 states and 154 transitions. [2018-11-23 00:15:18,912 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 154 transitions. [2018-11-23 00:15:18,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 00:15:18,912 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:15:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:15:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:16:13,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:16:13,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 75 states and 200 transitions. [2018-11-23 00:16:13,943 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 200 transitions. [2018-11-23 00:16:13,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 00:16:13,944 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:16:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:16:14,833 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:16:46,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:16:46,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 80 states and 209 transitions. [2018-11-23 00:16:46,011 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 209 transitions. [2018-11-23 00:16:46,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 00:16:46,012 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:16:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:16:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:16:47,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:16:47,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 84 states and 216 transitions. [2018-11-23 00:16:47,793 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 216 transitions. [2018-11-23 00:16:47,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 00:16:47,793 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:16:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:16:48,577 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:16:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:16:49,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 87 states and 220 transitions. [2018-11-23 00:16:49,035 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 220 transitions. [2018-11-23 00:16:49,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 00:16:49,036 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:16:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:16:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:16:50,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:16:50,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 89 states and 223 transitions. [2018-11-23 00:16:50,132 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 223 transitions. [2018-11-23 00:16:50,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 00:16:50,133 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:16:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:16:51,736 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 27 [2018-11-23 00:16:52,234 WARN L180 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 45 [2018-11-23 00:16:52,687 WARN L180 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 45 [2018-11-23 00:16:53,541 WARN L180 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 51 [2018-11-23 00:16:54,039 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 43 [2018-11-23 00:16:54,706 WARN L180 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 59 [2018-11-23 00:16:55,165 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 52 [2018-11-23 00:16:55,667 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 43 [2018-11-23 00:16:56,212 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 33 [2018-11-23 00:16:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:17:21,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:17:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 105 states and 267 transitions. [2018-11-23 00:17:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 267 transitions. [2018-11-23 00:17:21,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 00:17:21,258 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:17:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:17:22,794 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:17:24,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:17:24,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 111 states and 287 transitions. [2018-11-23 00:17:24,216 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 287 transitions. [2018-11-23 00:17:24,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 00:17:24,217 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:17:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:17:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:17:25,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:17:25,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 112 states and 289 transitions. [2018-11-23 00:17:25,830 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 289 transitions. [2018-11-23 00:17:25,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 00:17:25,830 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:17:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:17:27,100 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:17:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:17:27,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 114 states and 291 transitions. [2018-11-23 00:17:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 291 transitions. [2018-11-23 00:17:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 00:17:27,404 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:17:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:17:30,734 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 31 [2018-11-23 00:17:31,613 WARN L180 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 56 [2018-11-23 00:17:32,108 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 41 [2018-11-23 00:17:32,794 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 37 [2018-11-23 00:17:33,474 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 36 [2018-11-23 00:17:33,917 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 58 [2018-11-23 00:17:34,632 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 43 [2018-11-23 00:17:35,080 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 47 [2018-11-23 00:17:35,535 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 49 [2018-11-23 00:17:35,986 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 47 [2018-11-23 00:17:36,283 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 38 [2018-11-23 00:17:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:17:38,006 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2018-11-23 00:17:50,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:17:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 128 states and 330 transitions. [2018-11-23 00:17:50,727 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 330 transitions. [2018-11-23 00:17:50,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 00:17:50,728 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:17:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:17:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:18:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:18:48,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 141 states and 374 transitions. [2018-11-23 00:18:48,185 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 374 transitions. [2018-11-23 00:18:48,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 00:18:48,185 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:18:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:18:51,456 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:18:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:18:51,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 142 states and 374 transitions. [2018-11-23 00:18:51,727 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 374 transitions. [2018-11-23 00:18:51,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 00:18:51,727 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:18:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:18:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:18:55,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:18:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 143 states and 376 transitions. [2018-11-23 00:18:55,316 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 376 transitions. [2018-11-23 00:18:55,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 00:18:55,316 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:18:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:18:58,599 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:18:59,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:18:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 145 states and 378 transitions. [2018-11-23 00:18:59,098 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 378 transitions. [2018-11-23 00:18:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 00:18:59,099 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:18:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:19:02,516 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:19:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:19:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 147 states and 386 transitions. [2018-11-23 00:19:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 386 transitions. [2018-11-23 00:19:12,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 00:19:12,896 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:19:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:19:16,160 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:19:16,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:19:16,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 149 states and 391 transitions. [2018-11-23 00:19:16,553 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 391 transitions. [2018-11-23 00:19:16,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 00:19:16,554 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:19:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:19:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:19:20,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:19:20,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 151 states and 394 transitions. [2018-11-23 00:19:20,140 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 394 transitions. [2018-11-23 00:19:20,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 00:19:20,140 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:19:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:19:22,872 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 39 [2018-11-23 00:19:23,595 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 47 [2018-11-23 00:19:24,422 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 56 [2018-11-23 00:19:24,841 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 47 [2018-11-23 00:19:26,659 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 50 [2018-11-23 00:19:27,188 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 27 [2018-11-23 00:19:27,568 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 28 [2018-11-23 00:19:27,963 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 42 [2018-11-23 00:19:28,020 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:19:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:19:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 156 states and 407 transitions. [2018-11-23 00:19:40,438 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 407 transitions. [2018-11-23 00:19:40,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 00:19:40,438 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:19:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:19:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:19:44,709 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2018-11-23 00:20:01,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:20:01,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 160 states and 420 transitions. [2018-11-23 00:20:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 420 transitions. [2018-11-23 00:20:01,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 00:20:01,286 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:20:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:20:04,078 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:20:04,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:20:04,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 161 states and 420 transitions. [2018-11-23 00:20:04,362 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 420 transitions. [2018-11-23 00:20:04,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 00:20:04,362 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:20:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:20:09,579 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 26 [2018-11-23 00:20:11,327 WARN L180 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 45 [2018-11-23 00:20:12,805 WARN L180 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 64 [2018-11-23 00:20:13,806 WARN L180 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 52 [2018-11-23 00:20:15,057 WARN L180 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 49 [2018-11-23 00:20:16,592 WARN L180 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 403 DAG size of output: 46 [2018-11-23 00:20:19,257 WARN L180 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 471 DAG size of output: 62 [2018-11-23 00:20:22,176 WARN L180 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 666 DAG size of output: 69 [2018-11-23 00:20:27,659 WARN L180 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 775 DAG size of output: 79 [2018-11-23 00:20:32,908 WARN L180 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 768 DAG size of output: 72 [2018-11-23 00:20:37,473 WARN L180 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 852 DAG size of output: 94 [2018-11-23 00:20:41,756 WARN L180 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 861 DAG size of output: 86 [2018-11-23 00:20:47,830 WARN L180 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 867 DAG size of output: 73 [2018-11-23 00:20:53,829 WARN L180 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 893 DAG size of output: 84 [2018-11-23 00:21:00,223 WARN L180 SmtUtils]: Spent 4.71 s on a formula simplification. DAG size of input: 899 DAG size of output: 84 [2018-11-23 00:21:07,062 WARN L180 SmtUtils]: Spent 5.27 s on a formula simplification. DAG size of input: 899 DAG size of output: 42 [2018-11-23 00:21:15,931 WARN L180 SmtUtils]: Spent 5.75 s on a formula simplification. DAG size of input: 906 DAG size of output: 40 [2018-11-23 00:21:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:21:55,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:21:55,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 153 states and 397 transitions. [2018-11-23 00:21:55,250 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 397 transitions. [2018-11-23 00:21:55,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 00:21:55,251 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2018-11-23 00:21:55,257 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-23 00:21:55,592 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 57 [2018-11-23 00:21:56,416 WARN L180 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 100 [2018-11-23 00:21:57,150 WARN L180 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 106 [2018-11-23 00:21:57,482 WARN L180 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 57 [2018-11-23 00:21:57,483 INFO L579 CodeCheckObserver]: Invariant with dag size 57 [2018-11-23 00:21:57,493 INFO L579 CodeCheckObserver]: Invariant with dag size 100 [2018-11-23 00:21:57,496 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-23 00:21:57,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:21:57 ImpRootNode [2018-11-23 00:21:57,497 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 00:21:57,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:21:57,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:21:57,502 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:21:57,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:13:05" (3/4) ... [2018-11-23 00:21:57,505 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 00:21:57,523 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 217 nodes and edges [2018-11-23 00:21:57,524 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-23 00:21:57,525 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 00:21:57,527 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 00:21:57,622 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_805c627a-fd43-451f-8f59-bd2c1102f3ca/bin-2019/ukojak/witness.graphml [2018-11-23 00:21:57,623 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:21:57,623 INFO L168 Benchmark]: Toolchain (without parser) took 765377.78 ms. Allocated memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: 1.4 GB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2018-11-23 00:21:57,624 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:21:57,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.61 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 917.4 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:57,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 148.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 917.4 MB in the beginning and 1.1 GB in the end (delta: -232.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:57,625 INFO L168 Benchmark]: Boogie Preprocessor took 55.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:57,625 INFO L168 Benchmark]: RCFGBuilder took 232383.78 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 113.8 MB). Free memory was 1.1 GB in the beginning and 960.0 MB in the end (delta: 183.0 MB). Peak memory consumption was 507.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:57,626 INFO L168 Benchmark]: CodeCheck took 532220.71 ms. Allocated memory was 1.3 GB in the beginning and 2.5 GB in the end (delta: 1.2 GB). Free memory was 960.0 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 980.2 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:57,626 INFO L168 Benchmark]: Witness Printer took 125.58 ms. Allocated memory is still 2.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-23 00:21:57,628 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 245 locations, 1 error locations. SAFE Result, 529.9s OverallTime, 32 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50779104 SDtfs, -206114334 SDslu, 101558208 SDs, 0 SdLazy, 1826204574 SolverSat, -1076181914 SolverUnsat, 278018206 SolverUnknown, 0 SolverNotchecked, 5779.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10420 GetRequests, 9180 SyntacticMatches, 666 SemanticMatches, 574 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289206 ImplicationChecksByTransitivity, 137.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.2s SsaConstructionTime, 10.3s SatisfiabilityAnalysisTime, 129.2s InterpolantComputationTime, 803 NumberOfCodeBlocks, 803 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 772 ConstructedInterpolants, 0 QuantifiedInterpolants, 1121176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2174 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 151]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((a15 == 8 && ((a12 <= 80 || (!(a21 == 9) && !(a21 == 8))) || (a12 <= 73282 && a21 == 8))) || (!(a24 == 1) && !(!(a21 == 8) && !(a21 == 7)))) || ((!(a15 == 9) && !(a15 == 8)) && !(a15 == 7))) || (!(1 <= a24 && a24 <= 1) && 7 == a15)) || (a15 == 9 && a12 <= 599999)) || (a21 == 10 && (a12 <= 11 || 80 < a12))) || (a15 == 8 && !(a24 == 1))) || ((!(a21 == 8) && !(a21 == 7)) && !(!(a15 == 9) || a21 == 9))) || (!(a21 == 10) && a15 == 7) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((((((((5 == a15 || (((!(a24 == 1) || a12 <= 599999) && !(a12 <= 599999 && 82 <= a12)) && !(a12 <= 80 || (!(a21 == 8) && !(a21 == 7))))) || (!(a21 == 7 || !(a15 == 8)) && a12 + 49 <= 0)) || (((8 == a15 || a15 == 5) && !(0 <= a12 + 49 && a12 + 49 <= 0)) && (a21 == 7 || !(a15 == 8)))) || ((!(a21 == 9) && !(a21 == 8)) && !(a12 <= 80 || a21 == 7))) || ((a15 == 8 && a21 == 8) && a12 <= 73282)) || ((a12 <= 80 && !(7 == a15)) && !((8 == a15 || a15 == 5) && a12 <= 11))) || (((a15 == 9 && a12 <= 599999) && (((((((2 == input || 4 == input) || !(a21 == 8)) || 3 == input) || !(a24 == 1)) || 6 == input) || 1 == input) || 5 == input)) && (((((((2 == input || 4 == input) || 3 == input) || !(a24 == 1)) || 6 == input) || 1 == input) || 5 == input) || !(a21 == 7)))) || (!(a15 == 9) && !(a24 == 1))) || ((a15 == 8 && a12 <= 1728904 && (((((2 == input || 4 == input) || 3 == input) || 6 == input) || 1 == input) || 5 == input)) && (!(input == 5) || a12 <= 599997))) || ((!(a15 == 9) && !(a15 == 8)) && !(a12 <= 80 || a21 == 7))) || ((!(a21 == 7 || (0 <= a12 + 49 && a12 + 49 <= 0)) && !(a21 == 10 && 12 <= a12)) && a12 <= 80)) || ((!(a15 == 9) && !(8 == a15 || a15 == 5)) && (a21 == 7 || (0 <= a12 + 49 && a12 + 49 <= 0))) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 440.61 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 917.4 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 148.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 917.4 MB in the beginning and 1.1 GB in the end (delta: -232.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 232383.78 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 113.8 MB). Free memory was 1.1 GB in the beginning and 960.0 MB in the end (delta: 183.0 MB). Peak memory consumption was 507.4 MB. Max. memory is 11.5 GB. * CodeCheck took 532220.71 ms. Allocated memory was 1.3 GB in the beginning and 2.5 GB in the end (delta: 1.2 GB). Free memory was 960.0 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 980.2 MB. Max. memory is 11.5 GB. * Witness Printer took 125.58 ms. Allocated memory is still 2.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...