./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14f022cf7e99461a69af1dfadf53c6fdf3d4a870 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:11:24,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:11:24,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:11:24,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:11:24,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:11:24,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:11:24,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:11:24,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:11:24,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:11:24,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:11:24,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:11:24,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:11:24,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:11:24,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:11:24,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:11:24,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:11:24,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:11:24,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:11:24,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:11:24,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:11:24,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:11:24,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:11:24,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:11:24,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:11:24,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:11:24,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:11:24,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:11:24,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:11:24,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:11:24,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:11:24,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:11:24,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:11:24,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:11:24,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:11:24,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:11:24,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:11:24,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:11:24,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:11:24,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:11:24,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:11:24,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:11:24,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:11:24,699 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:11:24,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:11:24,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:11:24,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:11:24,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:11:24,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:11:24,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:11:24,704 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:11:24,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:11:24,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:11:24,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:11:24,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:11:24,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:11:24,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:11:24,705 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:11:24,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:11:24,705 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:11:24,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:11:24,705 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:11:24,706 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:11:24,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:11:24,706 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:11:24,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:11:24,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:11:24,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:11:24,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:11:24,707 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:11:24,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:11:24,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:11:24,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14f022cf7e99461a69af1dfadf53c6fdf3d4a870 [2019-10-22 10:11:24,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:11:24,750 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:11:24,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:11:24,754 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:11:24,754 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:11:24,755 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/../../sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c [2019-10-22 10:11:24,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/data/3b299f205/a81e5eb5d94846ec8a14f699c97a74cb/FLAGa80c6f56d [2019-10-22 10:11:25,210 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:11:25,211 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c [2019-10-22 10:11:25,221 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/data/3b299f205/a81e5eb5d94846ec8a14f699c97a74cb/FLAGa80c6f56d [2019-10-22 10:11:25,579 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/data/3b299f205/a81e5eb5d94846ec8a14f699c97a74cb [2019-10-22 10:11:25,582 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:11:25,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:11:25,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:11:25,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:11:25,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:11:25,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576275af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:25, skipping insertion in model container [2019-10-22 10:11:25,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:11:25" (1/1) ... [2019-10-22 10:11:25,598 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:11:25,643 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:11:25,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:11:25,971 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:11:26,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:11:26,098 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:11:26,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26 WrapperNode [2019-10-22 10:11:26,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:11:26,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:11:26,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:11:26,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:11:26,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:11:26,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:11:26,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:11:26,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:11:26,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26" (1/1) ... [2019-10-22 10:11:26,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:11:26,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:11:26,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:11:26,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:11:26,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:11:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:11:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 10:11:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-22 10:11:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-22 10:11:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-22 10:11:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-22 10:11:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-22 10:11:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-22 10:11:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-22 10:11:26,289 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-22 10:11:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-22 10:11:26,289 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-22 10:11:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 10:11:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-22 10:11:26,289 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-22 10:11:26,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:11:26,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:11:27,163 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:11:27,163 INFO L284 CfgBuilder]: Removed 38 assume(true) statements. [2019-10-22 10:11:27,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:11:27 BoogieIcfgContainer [2019-10-22 10:11:27,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:11:27,165 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:11:27,165 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:11:27,176 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:11:27,176 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:11:27" (1/1) ... [2019-10-22 10:11:27,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:11:27,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 50 states and 68 transitions. [2019-10-22 10:11:27,235 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2019-10-22 10:11:27,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:11:27,242 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 66 transitions. [2019-10-22 10:11:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2019-10-22 10:11:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:11:27,471 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:27,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 52 states and 69 transitions. [2019-10-22 10:11:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions. [2019-10-22 10:11:27,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:11:27,605 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 55 states and 77 transitions. [2019-10-22 10:11:27,736 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 77 transitions. [2019-10-22 10:11:27,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:11:27,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:27,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:27,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:27,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 63 states and 91 transitions. [2019-10-22 10:11:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2019-10-22 10:11:27,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:11:27,940 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:28,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:28,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 64 states and 92 transitions. [2019-10-22 10:11:28,029 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 92 transitions. [2019-10-22 10:11:28,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:11:28,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:28,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 65 states and 93 transitions. [2019-10-22 10:11:28,098 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2019-10-22 10:11:28,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:11:28,099 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:28,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:28,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:28,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 79 states and 128 transitions. [2019-10-22 10:11:28,609 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 128 transitions. [2019-10-22 10:11:28,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:11:28,610 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:28,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:29,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:29,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 88 states and 151 transitions. [2019-10-22 10:11:29,143 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 151 transitions. [2019-10-22 10:11:29,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 10:11:29,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 90 states and 152 transitions. [2019-10-22 10:11:29,309 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 152 transitions. [2019-10-22 10:11:29,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 10:11:29,310 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:29,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:29,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 91 states and 153 transitions. [2019-10-22 10:11:29,428 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 153 transitions. [2019-10-22 10:11:29,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:11:29,429 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:29,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:29,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 100 states and 171 transitions. [2019-10-22 10:11:29,640 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 171 transitions. [2019-10-22 10:11:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 10:11:29,641 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:29,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 101 states and 172 transitions. [2019-10-22 10:11:29,685 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 172 transitions. [2019-10-22 10:11:29,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 10:11:29,686 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:29,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:29,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:29,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 108 states and 189 transitions. [2019-10-22 10:11:29,970 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 189 transitions. [2019-10-22 10:11:29,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 10:11:29,971 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:30,001 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:30,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:30,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 109 states and 190 transitions. [2019-10-22 10:11:30,012 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 190 transitions. [2019-10-22 10:11:30,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:11:30,013 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:30,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:30,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 110 states and 193 transitions. [2019-10-22 10:11:30,152 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 193 transitions. [2019-10-22 10:11:30,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:11:30,153 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 111 states and 196 transitions. [2019-10-22 10:11:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 196 transitions. [2019-10-22 10:11:30,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 10:11:30,196 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:30,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:30,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 114 states and 203 transitions. [2019-10-22 10:11:30,477 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 203 transitions. [2019-10-22 10:11:30,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:11:30,478 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:30,504 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:30,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 119 states and 212 transitions. [2019-10-22 10:11:30,658 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 212 transitions. [2019-10-22 10:11:30,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 10:11:30,659 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:30,685 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:30,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:30,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 120 states and 212 transitions. [2019-10-22 10:11:30,697 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 212 transitions. [2019-10-22 10:11:30,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 10:11:30,698 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:30,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:31,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 135 states and 255 transitions. [2019-10-22 10:11:31,625 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 255 transitions. [2019-10-22 10:11:31,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:11:31,626 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-22 10:11:32,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 147 states and 299 transitions. [2019-10-22 10:11:32,699 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 299 transitions. [2019-10-22 10:11:32,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:11:32,700 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:32,731 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-22 10:11:33,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:33,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 153 states and 316 transitions. [2019-10-22 10:11:33,413 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 316 transitions. [2019-10-22 10:11:33,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 10:11:33,414 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:33,758 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:35,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:35,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 161 states and 350 transitions. [2019-10-22 10:11:35,803 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 350 transitions. [2019-10-22 10:11:35,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 10:11:35,804 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:35,836 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:36,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:36,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 163 states and 356 transitions. [2019-10-22 10:11:36,134 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 356 transitions. [2019-10-22 10:11:36,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 10:11:36,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:36,166 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:36,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:36,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 164 states and 357 transitions. [2019-10-22 10:11:36,182 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 357 transitions. [2019-10-22 10:11:36,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 10:11:36,183 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:36,215 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:36,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:36,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 165 states and 358 transitions. [2019-10-22 10:11:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 358 transitions. [2019-10-22 10:11:36,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 10:11:36,234 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-22 10:11:36,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:36,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 166 states and 359 transitions. [2019-10-22 10:11:36,278 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 359 transitions. [2019-10-22 10:11:36,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 10:11:36,280 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:36,312 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-22 10:11:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:36,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 167 states and 360 transitions. [2019-10-22 10:11:36,327 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 360 transitions. [2019-10-22 10:11:36,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 10:11:36,328 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:36,349 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:36,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:36,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 168 states and 361 transitions. [2019-10-22 10:11:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 361 transitions. [2019-10-22 10:11:36,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-22 10:11:36,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:36,619 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:37,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:37,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 171 states and 363 transitions. [2019-10-22 10:11:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 363 transitions. [2019-10-22 10:11:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 10:11:37,576 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-22 10:11:37,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:37,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 172 states and 363 transitions. [2019-10-22 10:11:37,866 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 363 transitions. [2019-10-22 10:11:37,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-22 10:11:37,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:37,910 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 10:11:39,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:39,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 182 states and 377 transitions. [2019-10-22 10:11:39,017 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 377 transitions. [2019-10-22 10:11:39,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-22 10:11:39,018 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 10:11:39,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:39,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 183 states and 378 transitions. [2019-10-22 10:11:39,077 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 378 transitions. [2019-10-22 10:11:39,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-22 10:11:39,078 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 10:11:39,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 185 states and 380 transitions. [2019-10-22 10:11:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 380 transitions. [2019-10-22 10:11:39,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-22 10:11:39,434 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:39,461 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:11:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:40,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 188 states and 385 transitions. [2019-10-22 10:11:40,165 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 385 transitions. [2019-10-22 10:11:40,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-22 10:11:40,167 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:40,190 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 10:11:40,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:40,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 188 states and 375 transitions. [2019-10-22 10:11:40,558 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 375 transitions. [2019-10-22 10:11:40,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-22 10:11:40,559 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:40,588 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 10:11:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:40,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 189 states and 376 transitions. [2019-10-22 10:11:40,604 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 376 transitions. [2019-10-22 10:11:40,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-22 10:11:40,605 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-22 10:11:40,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:40,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 190 states and 377 transitions. [2019-10-22 10:11:40,643 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 377 transitions. [2019-10-22 10:11:40,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 10:11:40,644 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:40,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:40,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 191 states and 378 transitions. [2019-10-22 10:11:40,914 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 378 transitions. [2019-10-22 10:11:40,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 10:11:40,915 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:40,937 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:41,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:41,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 193 states and 382 transitions. [2019-10-22 10:11:41,573 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 382 transitions. [2019-10-22 10:11:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 10:11:41,574 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 10:11:41,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:41,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 198 states and 389 transitions. [2019-10-22 10:11:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 389 transitions. [2019-10-22 10:11:41,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 10:11:41,830 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:41,858 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-22 10:11:41,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:41,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 186 states and 365 transitions. [2019-10-22 10:11:41,879 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 365 transitions. [2019-10-22 10:11:41,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 10:11:41,880 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:41,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-22 10:11:42,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:42,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 190 states and 372 transitions. [2019-10-22 10:11:42,047 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 372 transitions. [2019-10-22 10:11:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-22 10:11:42,048 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:42,069 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:11:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:42,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 191 states and 372 transitions. [2019-10-22 10:11:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 372 transitions. [2019-10-22 10:11:42,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 10:11:42,348 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:42,369 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-22 10:11:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:42,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 192 states and 372 transitions. [2019-10-22 10:11:42,390 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 372 transitions. [2019-10-22 10:11:42,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-22 10:11:42,391 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 10:11:42,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:42,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 190 states and 368 transitions. [2019-10-22 10:11:42,434 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 368 transitions. [2019-10-22 10:11:42,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-22 10:11:42,435 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 10:11:42,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:42,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 187 states and 361 transitions. [2019-10-22 10:11:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 361 transitions. [2019-10-22 10:11:42,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 10:11:42,478 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-22 10:11:42,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:42,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 185 states and 357 transitions. [2019-10-22 10:11:42,536 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 357 transitions. [2019-10-22 10:11:42,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 10:11:42,537 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:42,562 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-22 10:11:42,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:42,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 178 states and 342 transitions. [2019-10-22 10:11:42,584 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 342 transitions. [2019-10-22 10:11:42,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-22 10:11:42,585 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:42,610 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 10:11:42,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 180 states and 343 transitions. [2019-10-22 10:11:42,869 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 343 transitions. [2019-10-22 10:11:42,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-22 10:11:42,871 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:11:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:11:42,896 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-22 10:11:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:11:43,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 87 states and 139 transitions. [2019-10-22 10:11:43,168 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 139 transitions. [2019-10-22 10:11:43,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:11:43,169 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 52 iterations. [2019-10-22 10:11:43,176 INFO L771 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-10-22 10:11:43,448 INFO L575 CodeCheckObserver]: Invariant with dag size 15 [2019-10-22 10:11:43,455 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:43,456 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:43,456 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:43,456 INFO L575 CodeCheckObserver]: Invariant with dag size 9 [2019-10-22 10:11:43,457 INFO L575 CodeCheckObserver]: Invariant with dag size 11 [2019-10-22 10:11:43,457 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:43,457 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:43,458 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:43,458 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:43,458 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:43,458 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:43,458 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:11:43,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:11:43 ImpRootNode [2019-10-22 10:11:43,459 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:11:43,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:11:43,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:11:43,459 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:11:43,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:11:27" (3/4) ... [2019-10-22 10:11:43,464 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:11:43,469 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2019-10-22 10:11:43,469 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2019-10-22 10:11:43,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2019-10-22 10:11:43,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2019-10-22 10:11:43,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2019-10-22 10:11:43,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2019-10-22 10:11:43,476 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2019-10-22 10:11:43,476 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 10:11:43,477 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 10:11:43,477 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 10:11:43,477 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 10:11:43,478 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:11:43,506 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) || (1 == systemActive && pumpRunning == \old(pumpRunning)) [2019-10-22 10:11:43,506 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (pumpRunning == \old(pumpRunning) && !(0 == systemActive)) || !(pumpRunning == 0) [2019-10-22 10:11:43,555 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f349ab5a-212d-44b9-8653-e904b749645c/bin/ukojak/witness.graphml [2019-10-22 10:11:43,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:11:43,557 INFO L168 Benchmark]: Toolchain (without parser) took 17973.51 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 410.0 MB). Free memory was 944.4 MB in the beginning and 878.1 MB in the end (delta: 66.4 MB). Peak memory consumption was 476.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:43,558 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:11:43,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:43,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:11:43,558 INFO L168 Benchmark]: Boogie Preprocessor took 34.15 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:43,559 INFO L168 Benchmark]: RCFGBuilder took 950.32 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:43,559 INFO L168 Benchmark]: CodeCheck took 16293.98 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 266.9 MB). Free memory was 1.1 GB in the beginning and 892.7 MB in the end (delta: 160.9 MB). Peak memory consumption was 427.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:43,559 INFO L168 Benchmark]: Witness Printer took 96.59 ms. Allocated memory is still 1.4 GB. Free memory was 892.7 MB in the beginning and 878.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:11:43,561 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 7 procedures, 50 locations, 1 error locations. Result: SAFE, OverallTime: 15.9s, OverallIterations: 52, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: -559709968 SDtfs, -503986426 SDslu, -288411392 SDs, 0 SdLazy, 1295106854 SolverSat, -1851279088 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20418 GetRequests, 19922 SyntacticMatches, 218 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34310 ImplicationChecksByTransitivity, 11.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1828 NumberOfCodeBlocks, 1828 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 1777 ConstructedInterpolants, 0 QuantifiedInterpolants, 152541 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 51 InterpolantComputations, 35 PerfectInterpolantSequences, 626/689 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 643]: 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: 685]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) || (1 == systemActive && pumpRunning == \old(pumpRunning)) - InvariantResult [Line: 693]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: (1 == systemActive && 1 == waterLevel) && pumpRunning == 0 - InvariantResult [Line: 718]: Loop Invariant Derived loop invariant: (pumpRunning == \old(pumpRunning) && !(0 == systemActive)) || !(pumpRunning == 0) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 864]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 515.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.15 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 950.32 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * CodeCheck took 16293.98 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 266.9 MB). Free memory was 1.1 GB in the beginning and 892.7 MB in the end (delta: 160.9 MB). Peak memory consumption was 427.7 MB. Max. memory is 11.5 GB. * Witness Printer took 96.59 ms. Allocated memory is still 1.4 GB. Free memory was 892.7 MB in the beginning and 878.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...