./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.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_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/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 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:48:53,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:48:53,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:48:53,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:48:53,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:48:53,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:48:53,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:48:53,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:48:53,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:48:53,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:48:53,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:48:53,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:48:53,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:48:53,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:48:53,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:48:53,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:48:53,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:48:53,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:48:53,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:48:53,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:48:53,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:48:53,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:48:53,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:48:53,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:48:53,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:48:53,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:48:53,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:48:53,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:48:53,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:48:53,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:48:53,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:48:53,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:48:53,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:48:53,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:48:53,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:48:53,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:48:53,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:48:53,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:48:53,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:48:53,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:48:53,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:48:53,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 09:48:53,293 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:48:53,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:48:53,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 09:48:53,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 09:48:53,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:48:53,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:48:53,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:48:53,295 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:48:53,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:48:53,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:48:53,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:48:53,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:48:53,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:48:53,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:48:53,297 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:48:53,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:48:53,298 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:48:53,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:48:53,298 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 09:48:53,299 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 09:48:53,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:48:53,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:48:53,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 09:48:53,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:48:53,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:48:53,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:48:53,300 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 09:48:53,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:48:53,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:48:53,301 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_19f3ab0e-17bf-4f94-aa79-afc59aa58004/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 -> 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 [2019-11-20 09:48:53,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:48:53,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:48:53,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:48:53,507 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:48:53,507 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:48:53,508 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2019-11-20 09:48:53,561 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/data/95e071770/dfd5dfbbaafb4cfb8fefa02d4e54b900/FLAG39bc57961 [2019-11-20 09:48:53,995 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:48:53,995 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2019-11-20 09:48:54,006 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/data/95e071770/dfd5dfbbaafb4cfb8fefa02d4e54b900/FLAG39bc57961 [2019-11-20 09:48:54,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/data/95e071770/dfd5dfbbaafb4cfb8fefa02d4e54b900 [2019-11-20 09:48:54,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:48:54,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:48:54,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:48:54,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:48:54,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:48:54,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c2a4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54, skipping insertion in model container [2019-11-20 09:48:54,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,318 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:48:54,365 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:48:54,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:48:54,694 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:48:54,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:48:54,851 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:48:54,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54 WrapperNode [2019-11-20 09:48:54,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:48:54,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:48:54,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:48:54,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:48:54,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:48:54,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:48:54,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:48:54,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:48:54,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54" (1/1) ... [2019-11-20 09:48:54,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:48:54,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:48:54,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:48:54,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:48:54,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:48:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/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 09:48:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:48:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-20 09:48:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-20 09:48:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-20 09:48:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-20 09:48:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-20 09:48:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-20 09:48:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-20 09:48:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-20 09:48:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-20 09:48:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-20 09:48:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 09:48:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-20 09:48:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-20 09:48:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:48:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:48:55,947 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:48:55,947 INFO L285 CfgBuilder]: Removed 40 assume(true) statements. [2019-11-20 09:48:55,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:48:55 BoogieIcfgContainer [2019-11-20 09:48:55,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:48:55,948 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 09:48:55,949 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 09:48:55,960 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 09:48:55,960 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:48:55" (1/1) ... [2019-11-20 09:48:55,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:48:56,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:56,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 48 states and 63 transitions. [2019-11-20 09:48:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2019-11-20 09:48:56,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 09:48:56,023 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:56,222 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 09:48:56,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:56,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 48 states and 61 transitions. [2019-11-20 09:48:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2019-11-20 09:48:56,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 09:48:56,238 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:56,365 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 09:48:56,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:56,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 50 states and 64 transitions. [2019-11-20 09:48:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2019-11-20 09:48:56,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 09:48:56,401 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:56,542 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 09:48:56,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:56,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 63 states and 90 transitions. [2019-11-20 09:48:56,789 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 90 transitions. [2019-11-20 09:48:56,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 09:48:56,790 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:56,870 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 09:48:56,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:56,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 64 states and 91 transitions. [2019-11-20 09:48:56,895 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2019-11-20 09:48:56,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 09:48:56,897 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:57,001 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 09:48:57,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:57,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 79 states and 123 transitions. [2019-11-20 09:48:57,825 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 123 transitions. [2019-11-20 09:48:57,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 09:48:57,828 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:57,856 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 09:48:57,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:57,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 84 states and 133 transitions. [2019-11-20 09:48:57,933 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 133 transitions. [2019-11-20 09:48:57,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 09:48:57,936 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:57,972 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 09:48:57,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:57,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 87 states and 137 transitions. [2019-11-20 09:48:57,994 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 137 transitions. [2019-11-20 09:48:57,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 09:48:57,996 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:58,053 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 09:48:58,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:58,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 89 states and 139 transitions. [2019-11-20 09:48:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 139 transitions. [2019-11-20 09:48:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 09:48:58,077 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:58,148 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 09:48:58,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 90 states and 140 transitions. [2019-11-20 09:48:58,166 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 140 transitions. [2019-11-20 09:48:58,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 09:48:58,168 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:58,203 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 09:48:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:58,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 90 states and 139 transitions. [2019-11-20 09:48:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 139 transitions. [2019-11-20 09:48:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 09:48:58,220 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:58,446 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 09:48:58,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:58,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 99 states and 158 transitions. [2019-11-20 09:48:58,989 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 158 transitions. [2019-11-20 09:48:58,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 09:48:58,990 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:59,071 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 09:48:59,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:59,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 105 states and 171 transitions. [2019-11-20 09:48:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 171 transitions. [2019-11-20 09:48:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 09:48:59,425 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:59,458 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 09:48:59,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:48:59,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 103 states and 167 transitions. [2019-11-20 09:48:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 167 transitions. [2019-11-20 09:48:59,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-20 09:48:59,485 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:48:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:48:59,894 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 09:49:01,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 118 states and 217 transitions. [2019-11-20 09:49:01,780 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 217 transitions. [2019-11-20 09:49:01,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 09:49:01,781 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:01,811 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 09:49:02,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:02,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 120 states and 222 transitions. [2019-11-20 09:49:02,163 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 222 transitions. [2019-11-20 09:49:02,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-20 09:49:02,165 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:02,195 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 09:49:02,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 122 states and 223 transitions. [2019-11-20 09:49:02,463 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 223 transitions. [2019-11-20 09:49:02,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-20 09:49:02,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:02,492 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 09:49:02,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:02,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 124 states and 227 transitions. [2019-11-20 09:49:02,905 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 227 transitions. [2019-11-20 09:49:02,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 09:49:02,907 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-20 09:49:04,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:04,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 132 states and 259 transitions. [2019-11-20 09:49:04,920 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 259 transitions. [2019-11-20 09:49:04,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 09:49:04,922 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-20 09:49:05,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 134 states and 276 transitions. [2019-11-20 09:49:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 276 transitions. [2019-11-20 09:49:05,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-20 09:49:05,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-20 09:49:07,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:07,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 144 states and 296 transitions. [2019-11-20 09:49:07,009 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 296 transitions. [2019-11-20 09:49:07,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-20 09:49:07,010 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-20 09:49:07,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:07,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 146 states and 299 transitions. [2019-11-20 09:49:07,379 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 299 transitions. [2019-11-20 09:49:07,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 09:49:07,381 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-20 09:49:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:07,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 147 states and 300 transitions. [2019-11-20 09:49:07,436 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 300 transitions. [2019-11-20 09:49:07,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-20 09:49:07,438 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-20 09:49:07,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:07,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 147 states and 299 transitions. [2019-11-20 09:49:07,513 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 299 transitions. [2019-11-20 09:49:07,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-20 09:49:07,516 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:07,556 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-20 09:49:07,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:07,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 148 states and 302 transitions. [2019-11-20 09:49:07,856 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 302 transitions. [2019-11-20 09:49:07,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 09:49:07,858 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-20 09:49:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:09,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 153 states and 310 transitions. [2019-11-20 09:49:09,032 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 310 transitions. [2019-11-20 09:49:09,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 09:49:09,034 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:09,412 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 09:49:12,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:12,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 169 states and 346 transitions. [2019-11-20 09:49:12,833 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 346 transitions. [2019-11-20 09:49:12,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 09:49:12,835 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 09:49:13,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:13,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 171 states and 347 transitions. [2019-11-20 09:49:13,208 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 347 transitions. [2019-11-20 09:49:13,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-20 09:49:13,209 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:49:14,224 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 09:49:19,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 09:49:19,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 184 states and 385 transitions. [2019-11-20 09:49:19,252 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 385 transitions. [2019-11-20 09:49:19,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-20 09:49:19,254 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 09:49:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:49:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:49:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:49:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:49:19,634 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 29 iterations. [2019-11-20 09:49:19,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 09:49:19 ImpRootNode [2019-11-20 09:49:19,868 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 09:49:19,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:49:19,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:49:19,869 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:49:19,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:48:55" (3/4) ... [2019-11-20 09:49:19,873 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 09:49:20,028 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_19f3ab0e-17bf-4f94-aa79-afc59aa58004/bin/ukojak/witness.graphml [2019-11-20 09:49:20,029 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:49:20,032 INFO L168 Benchmark]: Toolchain (without parser) took 25728.14 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 495.5 MB). Free memory was 944.7 MB in the beginning and 828.8 MB in the end (delta: 115.9 MB). Peak memory consumption was 611.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:49:20,032 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:49:20,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:49:20,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 09:49:20,033 INFO L168 Benchmark]: Boogie Preprocessor took 42.74 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 09:49:20,033 INFO L168 Benchmark]: RCFGBuilder took 994.79 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: 75.0 MB). Peak memory consumption was 75.0 MB. Max. memory is 11.5 GB. [2019-11-20 09:49:20,034 INFO L168 Benchmark]: CodeCheck took 23919.63 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 356.5 MB). Free memory was 1.0 GB in the beginning and 846.7 MB in the end (delta: 191.8 MB). Peak memory consumption was 548.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:49:20,034 INFO L168 Benchmark]: Witness Printer took 161.26 ms. Allocated memory is still 1.5 GB. Free memory was 846.7 MB in the beginning and 828.8 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-20 09:49:20,036 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: 23.6s, OverallIterations: 29, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: -1786034620 SDtfs, -2018401078 SDslu, -277690776 SDs, 0 SdLazy, -546195580 SolverSat, 1326285550 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10928 GetRequests, 10585 SyntacticMatches, 29 SemanticMatches, 314 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41854 ImplicationChecksByTransitivity, 19.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1015 NumberOfCodeBlocks, 1015 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 935 ConstructedInterpolants, 0 QuantifiedInterpolants, 93032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 16 PerfectInterpolantSequences, 191/258 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: 764]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L581] int pumpRunning = 0; [L582] int systemActive = 1; [L833] int cleanupTimeShifts = 4; [L906] int retValue_acc ; [L907] int tmp ; [L824] int retValue_acc ; [L827] retValue_acc = 1 [L828] return (retValue_acc); [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) [L511] int splverifierCounter ; [L512] int tmp ; [L513] int tmp___0 ; [L514] int tmp___1 ; [L515] int tmp___2 ; [L518] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE splverifierCounter < 4 [L528] tmp = __VERIFIER_nondet_int() [L530] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 [L532] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp___2) [L755] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L589] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] COND TRUE \read(systemActive) [L618] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND TRUE ! pumpRunning [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; [L493] int retValue_acc ; [L496] COND FALSE !(waterLevel < 2) [L500] retValue_acc = 0 [L501] return (retValue_acc); [L739] tmp = isHighWaterSensorDry() [L741] COND FALSE !(\read(tmp)) [L744] tmp___0 = 1 [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); [L623] tmp = isHighWaterLevel() [L625] COND TRUE \read(tmp) [L652] int tmp ; [L677] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L681] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L681] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L681] retValue_acc = isMethaneLevelCritical() [L683] return (retValue_acc); [L656] tmp = isMethaneAlarm() [L658] COND FALSE !(\read(tmp)) [L646] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L770] int tmp ; [L771] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L775] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L775] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L775] tmp = isMethaneLevelCritical() [L777] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L520] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L522] COND TRUE splverifierCounter < 4 [L528] tmp = __VERIFIER_nondet_int() [L530] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L542] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L443] COND FALSE !(\read(methaneLevelCritical)) [L446] methaneLevelCritical = 1 [L542] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___2)) [L556] tmp___1 = __VERIFIER_nondet_int() [L558] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L565] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L589] COND TRUE \read(pumpRunning) [L419] COND TRUE waterLevel > 0 [L420] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE \read(systemActive) [L618] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L636] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L770] int tmp ; [L771] int tmp___0 ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L775] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L775] tmp = isMethaneLevelCritical() [L777] COND TRUE \read(tmp) [L688] int retValue_acc ; [L691] retValue_acc = pumpRunning [L692] return (retValue_acc); [L779] tmp___0 = isPumpRunning() [L781] 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] [L764] __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 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 547.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.74 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 994.79 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: 75.0 MB). Peak memory consumption was 75.0 MB. Max. memory is 11.5 GB. * CodeCheck took 23919.63 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 356.5 MB). Free memory was 1.0 GB in the beginning and 846.7 MB in the end (delta: 191.8 MB). Peak memory consumption was 548.3 MB. Max. memory is 11.5 GB. * Witness Printer took 161.26 ms. Allocated memory is still 1.5 GB. Free memory was 846.7 MB in the beginning and 828.8 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...