./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/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 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 01:33:40,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:33:40,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:33:40,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:33:40,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:33:40,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:33:40,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:33:40,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:33:40,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:33:40,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:33:40,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:33:40,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:33:40,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:33:40,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:33:40,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:33:40,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:33:40,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:33:40,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:33:40,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:33:40,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:33:40,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:33:40,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:33:40,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:33:40,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:33:40,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:33:40,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:33:40,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:33:40,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:33:40,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:33:40,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:33:40,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:33:40,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:33:40,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:33:40,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:33:40,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:33:40,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:33:40,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:33:40,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:33:40,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:33:40,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:33:40,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:33:40,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 01:33:40,178 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:33:40,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:33:40,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 01:33:40,179 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 01:33:40,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:33:40,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:33:40,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:33:40,180 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:33:40,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:33:40,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:33:40,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:33:40,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:33:40,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:33:40,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:33:40,182 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:33:40,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:33:40,182 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:33:40,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:33:40,182 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 01:33:40,182 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 01:33:40,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:33:40,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:33:40,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 01:33:40,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:33:40,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:33:40,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:33:40,183 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 01:33:40,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:33:40,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:33:40,184 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/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/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 -> 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 [2019-11-20 01:33:40,391 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:33:40,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:33:40,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:33:40,408 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:33:40,409 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:33:40,410 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2019-11-20 01:33:40,476 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/data/15b65d8a1/4985b8ee1df9411c90a3aa0a83dac5fe/FLAGcf48a6c60 [2019-11-20 01:33:40,923 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:33:40,924 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2019-11-20 01:33:40,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/data/15b65d8a1/4985b8ee1df9411c90a3aa0a83dac5fe/FLAGcf48a6c60 [2019-11-20 01:33:41,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/data/15b65d8a1/4985b8ee1df9411c90a3aa0a83dac5fe [2019-11-20 01:33:41,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:33:41,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:33:41,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:33:41,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:33:41,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:33:41,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:41,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608095ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41, skipping insertion in model container [2019-11-20 01:33:41,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:41,317 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:33:41,369 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:33:41,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:33:41,766 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:33:41,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:33:41,933 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:33:41,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41 WrapperNode [2019-11-20 01:33:41,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:33:41,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:33:41,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:33:41,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:33:41,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:41,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:41,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:33:41,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:33:41,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:33:41,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:33:42,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:42,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:42,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:42,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:42,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:42,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:42,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41" (1/1) ... [2019-11-20 01:33:42,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:33:42,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:33:42,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:33:42,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:33:42,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:33:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/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 [2019-11-20 01:33:42,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:33:42,119 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-20 01:33:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-20 01:33:42,121 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-20 01:33:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-20 01:33:42,121 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-20 01:33:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-20 01:33:42,121 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-20 01:33:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-20 01:33:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-20 01:33:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-20 01:33:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 01:33:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-20 01:33:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-20 01:33:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:33:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:33:43,060 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:33:43,061 INFO L285 CfgBuilder]: Removed 42 assume(true) statements. [2019-11-20 01:33:43,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:33:43 BoogieIcfgContainer [2019-11-20 01:33:43,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:33:43,063 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 01:33:43,063 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 01:33:43,073 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 01:33:43,073 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:33:43" (1/1) ... [2019-11-20 01:33:43,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:33:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 48 states and 63 transitions. [2019-11-20 01:33:43,130 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2019-11-20 01:33:43,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 01:33:43,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 48 states and 61 transitions. [2019-11-20 01:33:43,438 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2019-11-20 01:33:43,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 01:33:43,441 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 50 states and 64 transitions. [2019-11-20 01:33:43,644 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2019-11-20 01:33:43,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 01:33:43,645 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:44,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 63 states and 90 transitions. [2019-11-20 01:33:44,149 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 90 transitions. [2019-11-20 01:33:44,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 01:33:44,151 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:44,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:44,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:44,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 73 states and 112 transitions. [2019-11-20 01:33:44,930 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 112 transitions. [2019-11-20 01:33:44,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 01:33:44,933 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:45,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 74 states and 113 transitions. [2019-11-20 01:33:45,038 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 113 transitions. [2019-11-20 01:33:45,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 01:33:45,041 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:46,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:46,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 89 states and 143 transitions. [2019-11-20 01:33:46,921 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 143 transitions. [2019-11-20 01:33:46,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 01:33:46,924 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:46,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:46,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 90 states and 144 transitions. [2019-11-20 01:33:46,986 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 144 transitions. [2019-11-20 01:33:46,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 01:33:46,989 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:47,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:47,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 93 states and 148 transitions. [2019-11-20 01:33:47,055 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 148 transitions. [2019-11-20 01:33:47,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 01:33:47,057 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 01:33:47,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:47,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 95 states and 150 transitions. [2019-11-20 01:33:47,128 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 150 transitions. [2019-11-20 01:33:47,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 01:33:47,131 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:47,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 98 states and 157 transitions. [2019-11-20 01:33:47,351 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 157 transitions. [2019-11-20 01:33:47,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 01:33:47,353 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:47,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:47,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:47,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 99 states and 158 transitions. [2019-11-20 01:33:47,436 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 158 transitions. [2019-11-20 01:33:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 01:33:47,438 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:47,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:33:47,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:47,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 99 states and 157 transitions. [2019-11-20 01:33:47,498 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 157 transitions. [2019-11-20 01:33:47,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 01:33:47,500 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:47,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 01:33:48,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 108 states and 177 transitions. [2019-11-20 01:33:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 177 transitions. [2019-11-20 01:33:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 01:33:48,837 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:48,950 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:33:49,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:49,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 114 states and 193 transitions. [2019-11-20 01:33:49,823 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 193 transitions. [2019-11-20 01:33:49,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 01:33:49,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:33:49,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 112 states and 189 transitions. [2019-11-20 01:33:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 189 transitions. [2019-11-20 01:33:49,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-20 01:33:49,886 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:33:50,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:50,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 114 states and 194 transitions. [2019-11-20 01:33:50,444 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 194 transitions. [2019-11-20 01:33:50,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-20 01:33:50,445 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:50,501 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-20 01:33:50,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:50,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 116 states and 195 transitions. [2019-11-20 01:33:50,804 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 195 transitions. [2019-11-20 01:33:50,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-20 01:33:50,811 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:33:52,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 124 states and 225 transitions. [2019-11-20 01:33:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 225 transitions. [2019-11-20 01:33:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 01:33:52,183 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:33:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 134 states and 260 transitions. [2019-11-20 01:33:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 260 transitions. [2019-11-20 01:33:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 01:33:54,911 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:33:55,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:55,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 136 states and 264 transitions. [2019-11-20 01:33:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 264 transitions. [2019-11-20 01:33:55,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-20 01:33:55,559 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:33:57,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 146 states and 284 transitions. [2019-11-20 01:33:57,388 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 284 transitions. [2019-11-20 01:33:57,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-20 01:33:57,389 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:33:57,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:57,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 148 states and 288 transitions. [2019-11-20 01:33:57,926 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 288 transitions. [2019-11-20 01:33:57,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-20 01:33:57,929 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:33:58,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 149 states and 289 transitions. [2019-11-20 01:33:58,154 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 289 transitions. [2019-11-20 01:33:58,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 01:33:58,156 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:58,224 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 01:33:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:58,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 154 states and 295 transitions. [2019-11-20 01:33:58,814 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 295 transitions. [2019-11-20 01:33:58,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 01:33:58,816 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 01:33:59,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:59,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 159 states and 302 transitions. [2019-11-20 01:33:59,292 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 302 transitions. [2019-11-20 01:33:59,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 01:33:59,294 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 01:33:59,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:33:59,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 161 states and 303 transitions. [2019-11-20 01:33:59,718 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 303 transitions. [2019-11-20 01:33:59,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-20 01:33:59,720 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:33:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:33:59,876 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:34:00,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:34:00,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 161 states and 301 transitions. [2019-11-20 01:34:00,161 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 301 transitions. [2019-11-20 01:34:00,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-20 01:34:00,163 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:34:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:34:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:34:01,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:34:01,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 167 states and 317 transitions. [2019-11-20 01:34:01,251 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 317 transitions. [2019-11-20 01:34:01,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 01:34:01,252 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:34:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:34:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 01:34:02,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:34:02,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 173 states and 328 transitions. [2019-11-20 01:34:02,797 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 328 transitions. [2019-11-20 01:34:02,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-20 01:34:02,799 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:34:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:34:03,509 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 01:34:08,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 01:34:08,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 186 states and 367 transitions. [2019-11-20 01:34:08,996 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 367 transitions. [2019-11-20 01:34:08,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-20 01:34:08,999 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 01:34:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:34:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:34:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:34:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:34:09,500 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 31 iterations. [2019-11-20 01:34:09,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 01:34:09 ImpRootNode [2019-11-20 01:34:09,707 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 01:34:09,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:34:09,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:34:09,707 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:34:09,708 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:33:43" (3/4) ... [2019-11-20 01:34:09,710 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 01:34:09,914 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a6e92ba6-3181-405b-b634-b5e450627b14/bin/ukojak/witness.graphml [2019-11-20 01:34:09,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:34:09,921 INFO L168 Benchmark]: Toolchain (without parser) took 28617.66 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 413.1 MB). Free memory was 946.1 MB in the beginning and 1.3 GB in the end (delta: -310.3 MB). Peak memory consumption was 102.9 MB. Max. memory is 11.5 GB. [2019-11-20 01:34:09,921 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:34:09,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-11-20 01:34:09,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.08 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. [2019-11-20 01:34:09,923 INFO L168 Benchmark]: Boogie Preprocessor took 38.30 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. [2019-11-20 01:34:09,923 INFO L168 Benchmark]: RCFGBuilder took 1025.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:34:09,924 INFO L168 Benchmark]: CodeCheck took 26643.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 269.5 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -237.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:34:09,924 INFO L168 Benchmark]: Witness Printer took 211.12 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-20 01:34:09,926 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, 48 locations, 1 error locations. Result: UNSAFE, OverallTime: 26.3s, OverallIterations: 31, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1741122160 SDtfs, 1314843214 SDslu, 11877544 SDs, 0 SdLazy, 994483554 SolverSat, 1727654628 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11305 GetRequests, 10866 SyntacticMatches, 137 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43703 ImplicationChecksByTransitivity, 21.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1060 NumberOfCodeBlocks, 1060 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 978 ConstructedInterpolants, 0 QuantifiedInterpolants, 103431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 21 PerfectInterpolantSequences, 191/268 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 - CounterExampleResult [Line: 405]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L147] int pumpRunning = 0; [L148] int systemActive = 1; [L436] int cleanupTimeShifts = 4; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L512] int retValue_acc ; [L513] int tmp ; [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); [L519] tmp = valid_product() [L521] COND TRUE \read(tmp) [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L344] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L356] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L356] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND FALSE !(\read(tmp___2)) [L378] tmp___1 = __VERIFIER_nondet_int() [L380] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L389] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L155] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L187] COND TRUE ! pumpRunning [L299] int retValue_acc ; [L300] int tmp ; [L301] int tmp___0 ; [L127] int retValue_acc ; [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); [L305] tmp = isHighWaterSensorDry() [L307] COND FALSE !(\read(tmp)) [L310] tmp___0 = 1 [L312] retValue_acc = tmp___0 [L313] return (retValue_acc); [L189] tmp = isHighWaterLevel() [L191] COND TRUE \read(tmp) [L218] int tmp ; [L243] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L247] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L247] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L247] retValue_acc = isMethaneLevelCritical() [L249] return (retValue_acc); [L222] tmp = isMethaneAlarm() [L224] COND FALSE !(\read(tmp)) [L212] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L411] int tmp ; [L412] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L416] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L416] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L416] tmp = isMethaneLevelCritical() [L418] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L389] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L344] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L366] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 [L366] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L389] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE \read(pumpRunning) [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L187] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L202] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L411] int tmp ; [L412] int tmp___0 ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L416] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L416] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L416] tmp = isMethaneLevelCritical() [L418] COND TRUE \read(tmp) [L254] int retValue_acc ; [L257] retValue_acc = pumpRunning [L258] return (retValue_acc); [L420] tmp___0 = isPumpRunning() [L422] COND TRUE \read(tmp___0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L405] __VERIFIER_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 630.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.08 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. * Boogie Preprocessor took 38.30 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. * RCFGBuilder took 1025.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. * CodeCheck took 26643.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 269.5 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -237.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * Witness Printer took 211.12 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...