./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product28.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_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/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 0040f6786a06aedabfd1d9c06a96268fa6592c87 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:15:47,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:15:47,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:15:47,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:15:47,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:15:47,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:15:47,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:15:47,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:15:47,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:15:47,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:15:47,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:15:47,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:15:47,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:15:47,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:15:47,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:15:47,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:15:47,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:15:47,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:15:47,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:15:47,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:15:47,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:15:47,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:15:47,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:15:47,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:15:47,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:15:47,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:15:47,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:15:47,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:15:47,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:15:47,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:15:47,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:15:47,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:15:47,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:15:47,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:15:47,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:15:47,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:15:47,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:15:47,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:15:47,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:15:47,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:15:47,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:15:47,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:15:47,971 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:15:47,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:15:47,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:15:47,972 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:15:47,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:15:47,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:15:47,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:15:47,973 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:15:47,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:15:47,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:15:47,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:15:47,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:15:47,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:15:47,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:15:47,974 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:15:47,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:15:47,974 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:15:47,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:15:47,975 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:15:47,975 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:15:47,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:15:47,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:15:47,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:15:47,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:15:47,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:15:47,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:15:47,976 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:15:47,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:15:47,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:15:47,976 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_4310c44f-8b82-4170-bebe-d2710f17c964/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 -> 0040f6786a06aedabfd1d9c06a96268fa6592c87 [2019-10-22 10:15:47,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:15:48,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:15:48,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:15:48,019 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:15:48,019 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:15:48,020 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/../../sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c [2019-10-22 10:15:48,070 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/data/a7a7cde00/1b90216ea3134e3d812719f547be1a18/FLAGabebb580d [2019-10-22 10:15:48,523 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:15:48,524 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/sv-benchmarks/c/product-lines/minepump_spec4_product28.cil.c [2019-10-22 10:15:48,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/data/a7a7cde00/1b90216ea3134e3d812719f547be1a18/FLAGabebb580d [2019-10-22 10:15:48,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/data/a7a7cde00/1b90216ea3134e3d812719f547be1a18 [2019-10-22 10:15:48,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:15:48,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:15:48,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:48,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:15:48,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:15:48,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:48" (1/1) ... [2019-10-22 10:15:48,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747505d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:48, skipping insertion in model container [2019-10-22 10:15:48,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:48" (1/1) ... [2019-10-22 10:15:48,894 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:15:48,945 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:15:49,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:49,304 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:15:49,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:49,401 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:15:49,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49 WrapperNode [2019-10-22 10:15:49,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:49,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:49,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:15:49,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:15:49,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49" (1/1) ... [2019-10-22 10:15:49,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49" (1/1) ... [2019-10-22 10:15:49,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:49,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:15:49,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:15:49,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:15:49,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49" (1/1) ... [2019-10-22 10:15:49,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49" (1/1) ... [2019-10-22 10:15:49,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49" (1/1) ... [2019-10-22 10:15:49,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49" (1/1) ... [2019-10-22 10:15:49,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49" (1/1) ... [2019-10-22 10:15:49,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49" (1/1) ... [2019-10-22 10:15:49,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49" (1/1) ... [2019-10-22 10:15:49,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:15:49,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:15:49,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:15:49,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:15:49,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/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 10:15:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 10:15:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-22 10:15:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-22 10:15:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-22 10:15:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-22 10:15:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-22 10:15:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-22 10:15:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-22 10:15:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-22 10:15:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-22 10:15:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-22 10:15:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 10:15:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-22 10:15:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-22 10:15:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:15:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:15:50,392 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:15:50,393 INFO L284 CfgBuilder]: Removed 38 assume(true) statements. [2019-10-22 10:15:50,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:50 BoogieIcfgContainer [2019-10-22 10:15:50,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:15:50,396 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:15:50,396 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:15:50,406 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:15:50,407 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:50" (1/1) ... [2019-10-22 10:15:50,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:15:50,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 50 states and 68 transitions. [2019-10-22 10:15:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2019-10-22 10:15:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:15:50,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:50,714 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 10:15:50,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:50,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 66 transitions. [2019-10-22 10:15:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2019-10-22 10:15:50,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:15:50,726 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:50,799 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 10:15:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 52 states and 69 transitions. [2019-10-22 10:15:50,821 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions. [2019-10-22 10:15:50,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:15:50,822 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:50,925 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 10:15:50,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:50,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 55 states and 77 transitions. [2019-10-22 10:15:50,975 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 77 transitions. [2019-10-22 10:15:50,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:15:50,976 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:51,045 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 10:15:51,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:51,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 63 states and 91 transitions. [2019-10-22 10:15:51,168 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2019-10-22 10:15:51,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:15:51,169 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:51,228 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 10:15:51,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 64 states and 92 transitions. [2019-10-22 10:15:51,242 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 92 transitions. [2019-10-22 10:15:51,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:15:51,243 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:51,276 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 10:15:51,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:51,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 65 states and 93 transitions. [2019-10-22 10:15:51,290 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2019-10-22 10:15:51,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:15:51,291 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:51,396 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 10:15:51,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:51,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 79 states and 128 transitions. [2019-10-22 10:15:51,927 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 128 transitions. [2019-10-22 10:15:51,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:15:51,928 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:52,020 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 10:15:52,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:52,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 88 states and 150 transitions. [2019-10-22 10:15:52,510 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 150 transitions. [2019-10-22 10:15:52,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 10:15:52,511 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:52,562 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 10:15:52,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 92 states and 161 transitions. [2019-10-22 10:15:52,835 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 161 transitions. [2019-10-22 10:15:52,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 10:15:52,845 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:52,882 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 10:15:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 93 states and 162 transitions. [2019-10-22 10:15:52,918 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 162 transitions. [2019-10-22 10:15:52,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:15:52,919 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:52,977 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 10:15:53,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:53,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 96 states and 169 transitions. [2019-10-22 10:15:53,129 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 169 transitions. [2019-10-22 10:15:53,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:15:53,130 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:53,160 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 10:15:53,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:53,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 103 states and 178 transitions. [2019-10-22 10:15:53,317 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 178 transitions. [2019-10-22 10:15:53,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 10:15:53,318 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:53,351 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 10:15:53,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:53,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 104 states and 179 transitions. [2019-10-22 10:15:53,365 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 179 transitions. [2019-10-22 10:15:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 10:15:53,366 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:53,436 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 10:15:53,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:53,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 111 states and 197 transitions. [2019-10-22 10:15:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 197 transitions. [2019-10-22 10:15:53,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 10:15:53,676 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:53,698 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 10:15:53,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:53,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 112 states and 198 transitions. [2019-10-22 10:15:53,714 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 198 transitions. [2019-10-22 10:15:53,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:15:53,715 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:53,738 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 10:15:53,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:53,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 113 states and 201 transitions. [2019-10-22 10:15:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 201 transitions. [2019-10-22 10:15:53,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:15:53,863 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:53,885 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 10:15:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:53,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 114 states and 204 transitions. [2019-10-22 10:15:53,926 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 204 transitions. [2019-10-22 10:15:53,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:15:53,927 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:53,953 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 10:15:54,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:54,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 119 states and 213 transitions. [2019-10-22 10:15:54,101 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 213 transitions. [2019-10-22 10:15:54,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 10:15:54,102 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:54,125 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 10:15:54,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:54,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 122 states and 220 transitions. [2019-10-22 10:15:54,423 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 220 transitions. [2019-10-22 10:15:54,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 10:15:54,424 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:54,449 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 10:15:54,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:54,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 123 states and 220 transitions. [2019-10-22 10:15:54,467 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 220 transitions. [2019-10-22 10:15:54,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 10:15:54,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:54,492 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 10:15:55,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 138 states and 256 transitions. [2019-10-22 10:15:55,233 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 256 transitions. [2019-10-22 10:15:55,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:15:55,234 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:55,320 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 10:15:56,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 150 states and 284 transitions. [2019-10-22 10:15:56,060 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 284 transitions. [2019-10-22 10:15:56,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:15:56,061 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:56,103 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 10:15:56,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:56,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 152 states and 289 transitions. [2019-10-22 10:15:56,298 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 289 transitions. [2019-10-22 10:15:56,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 10:15:56,299 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:56,610 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 10:15:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 160 states and 310 transitions. [2019-10-22 10:15:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 310 transitions. [2019-10-22 10:15:58,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 10:15:58,389 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:58,441 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 10:15:58,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:58,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 161 states and 311 transitions. [2019-10-22 10:15:58,462 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 311 transitions. [2019-10-22 10:15:58,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-22 10:15:58,463 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:58,492 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 10:15:58,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 162 states and 312 transitions. [2019-10-22 10:15:58,507 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 312 transitions. [2019-10-22 10:15:58,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 10:15:58,508 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:58,532 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 10:15:58,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:58,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 163 states and 313 transitions. [2019-10-22 10:15:58,545 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 313 transitions. [2019-10-22 10:15:58,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 10:15:58,546 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:58,573 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 10:15:58,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:58,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 164 states and 314 transitions. [2019-10-22 10:15:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 314 transitions. [2019-10-22 10:15:58,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 10:15:58,595 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:59,221 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 10:16:00,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:00,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 173 states and 336 transitions. [2019-10-22 10:16:00,397 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 336 transitions. [2019-10-22 10:16:00,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 10:16:00,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:00,428 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 10:16:00,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:00,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 174 states and 337 transitions. [2019-10-22 10:16:00,468 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 337 transitions. [2019-10-22 10:16:00,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-22 10:16:00,469 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:00,515 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 10:16:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 188 states and 376 transitions. [2019-10-22 10:16:01,703 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 376 transitions. [2019-10-22 10:16:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-22 10:16:01,704 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:01,740 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 10:16:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:02,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 191 states and 379 transitions. [2019-10-22 10:16:02,010 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 379 transitions. [2019-10-22 10:16:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-22 10:16:02,011 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:02,047 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 10:16:02,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 192 states and 380 transitions. [2019-10-22 10:16:02,073 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 380 transitions. [2019-10-22 10:16:02,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 10:16:02,074 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:02,104 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 10:16:02,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 192 states and 379 transitions. [2019-10-22 10:16:02,368 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 379 transitions. [2019-10-22 10:16:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 10:16:02,369 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:02,396 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-22 10:16:02,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 193 states and 380 transitions. [2019-10-22 10:16:02,417 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 380 transitions. [2019-10-22 10:16:02,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-22 10:16:02,418 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:02,451 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 10:16:02,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:02,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 194 states and 381 transitions. [2019-10-22 10:16:02,469 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 381 transitions. [2019-10-22 10:16:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-22 10:16:02,470 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:02,705 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 10:16:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 202 states and 407 transitions. [2019-10-22 10:16:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 407 transitions. [2019-10-22 10:16:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 10:16:04,794 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:04,816 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 10:16:04,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:04,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 207 states and 414 transitions. [2019-10-22 10:16:04,848 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 414 transitions. [2019-10-22 10:16:04,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 10:16:04,849 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:04,879 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 10:16:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 195 states and 390 transitions. [2019-10-22 10:16:04,899 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 390 transitions. [2019-10-22 10:16:04,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-22 10:16:04,901 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:04,929 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 10:16:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 199 states and 397 transitions. [2019-10-22 10:16:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 397 transitions. [2019-10-22 10:16:05,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 10:16:05,183 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:05,208 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 10:16:05,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:05,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 201 states and 399 transitions. [2019-10-22 10:16:05,255 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 399 transitions. [2019-10-22 10:16:05,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-22 10:16:05,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:05,282 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 10:16:05,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:05,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 199 states and 395 transitions. [2019-10-22 10:16:05,310 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 395 transitions. [2019-10-22 10:16:05,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-22 10:16:05,311 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:05,333 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 10:16:05,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:05,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 196 states and 388 transitions. [2019-10-22 10:16:05,359 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 388 transitions. [2019-10-22 10:16:05,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 10:16:05,360 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:05,384 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 10:16:05,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:05,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 194 states and 384 transitions. [2019-10-22 10:16:05,414 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 384 transitions. [2019-10-22 10:16:05,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-22 10:16:05,415 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:05,443 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 10:16:05,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 187 states and 367 transitions. [2019-10-22 10:16:05,464 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 367 transitions. [2019-10-22 10:16:05,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-22 10:16:05,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-22 10:16:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:06,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 190 states and 369 transitions. [2019-10-22 10:16:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 369 transitions. [2019-10-22 10:16:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-22 10:16:06,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:06,281 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-22 10:16:06,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 192 states and 370 transitions. [2019-10-22 10:16:06,561 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 370 transitions. [2019-10-22 10:16:06,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-22 10:16:06,562 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:06,597 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 10:16:06,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:06,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 194 states and 373 transitions. [2019-10-22 10:16:06,940 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 373 transitions. [2019-10-22 10:16:06,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-22 10:16:06,941 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:06,966 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 10:16:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:07,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 194 states and 369 transitions. [2019-10-22 10:16:07,248 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 369 transitions. [2019-10-22 10:16:07,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-22 10:16:07,249 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-22 10:16:07,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:07,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 191 states and 363 transitions. [2019-10-22 10:16:07,601 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 363 transitions. [2019-10-22 10:16:07,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-22 10:16:07,602 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-22 10:16:08,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:08,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 102 states and 169 transitions. [2019-10-22 10:16:08,135 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 169 transitions. [2019-10-22 10:16:08,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:16:08,136 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 52 iterations. [2019-10-22 10:16:08,144 INFO L771 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-10-22 10:16:08,440 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:08,443 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:08,444 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:08,444 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:08,444 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:08,444 INFO L575 CodeCheckObserver]: Invariant with dag size 23 [2019-10-22 10:16:08,449 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:08,449 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:08,449 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:08,449 INFO L575 CodeCheckObserver]: Invariant with dag size 18 [2019-10-22 10:16:08,450 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:08,450 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:08,450 INFO L575 CodeCheckObserver]: Invariant with dag size 9 [2019-10-22 10:16:08,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:16:08 ImpRootNode [2019-10-22 10:16:08,451 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:16:08,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:16:08,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:16:08,452 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:16:08,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:50" (3/4) ... [2019-10-22 10:16:08,456 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:16:08,461 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2019-10-22 10:16:08,461 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2019-10-22 10:16:08,462 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2019-10-22 10:16:08,462 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2019-10-22 10:16:08,462 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2019-10-22 10:16:08,462 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2019-10-22 10:16:08,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2019-10-22 10:16:08,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2019-10-22 10:16:08,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 10:16:08,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 10:16:08,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 10:16:08,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:16:08,497 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && pumpRunning == \old(pumpRunning)) && (\old(waterLevel) <= 0 || !(0 == waterLevel))) || !(pumpRunning == 0)) || ((!(1 == systemActive) && pumpRunning == \old(pumpRunning)) && !(0 == systemActive))) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) [2019-10-22 10:16:08,497 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(!(0 == \old(pumpRunning)) || !(0 == waterLevel)) || (pumpRunning == \old(pumpRunning) && !(0 == systemActive))) || !(pumpRunning == 0) [2019-10-22 10:16:08,532 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4310c44f-8b82-4170-bebe-d2710f17c964/bin/ukojak/witness.graphml [2019-10-22 10:16:08,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:16:08,534 INFO L168 Benchmark]: Toolchain (without parser) took 19654.21 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 513.3 MB). Free memory was 940.4 MB in the beginning and 859.8 MB in the end (delta: 80.6 MB). Peak memory consumption was 593.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:08,534 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:08,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -198.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:08,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.01 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:08,535 INFO L168 Benchmark]: Boogie Preprocessor took 29.91 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:08,536 INFO L168 Benchmark]: RCFGBuilder took 920.49 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: 75.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:08,536 INFO L168 Benchmark]: CodeCheck took 18055.27 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 359.7 MB). Free memory was 1.1 GB in the beginning and 864.3 MB in the end (delta: 190.7 MB). Peak memory consumption was 550.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:08,536 INFO L168 Benchmark]: Witness Printer took 80.82 ms. Allocated memory is still 1.5 GB. Free memory was 864.3 MB in the beginning and 859.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:08,538 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: 17.7s, OverallIterations: 52, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1616184608 SDtfs, 1207718566 SDslu, -487235456 SDs, 0 SdLazy, -411905546 SolverSat, 1983017600 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20480 GetRequests, 19908 SyntacticMatches, 268 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43432 ImplicationChecksByTransitivity, 13.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1883 NumberOfCodeBlocks, 1883 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 1832 ConstructedInterpolants, 0 QuantifiedInterpolants, 185388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 51 InterpolantComputations, 36 PerfectInterpolantSequences, 695/765 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: 44]: 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: 881]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 497]: Loop Invariant Derived loop invariant: ((((1 == systemActive && pumpRunning == \old(pumpRunning)) && (\old(waterLevel) <= 0 || !(0 == waterLevel))) || !(pumpRunning == 0)) || ((!(1 == systemActive) && pumpRunning == \old(pumpRunning)) && !(0 == systemActive))) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 505]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 786]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: (!(!(0 == \old(pumpRunning)) || !(0 == waterLevel)) || (pumpRunning == \old(pumpRunning) && !(0 == systemActive))) || !(pumpRunning == 0) - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: (1 == systemActive && 1 == waterLevel) && pumpRunning == 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 521.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -198.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.01 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.91 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 920.49 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: 75.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 11.5 GB. * CodeCheck took 18055.27 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 359.7 MB). Free memory was 1.1 GB in the beginning and 864.3 MB in the end (delta: 190.7 MB). Peak memory consumption was 550.3 MB. Max. memory is 11.5 GB. * Witness Printer took 80.82 ms. Allocated memory is still 1.5 GB. Free memory was 864.3 MB in the beginning and 859.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...