./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product41_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product41_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa3516ef35b9a868c2359cecbd34fc3153ca14ae ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-635dfa2 [2018-12-09 10:39:52,043 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:39:52,044 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:39:52,050 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:39:52,050 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:39:52,051 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:39:52,051 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:39:52,052 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:39:52,053 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:39:52,053 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:39:52,054 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:39:52,054 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:39:52,054 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:39:52,055 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:39:52,055 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:39:52,056 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:39:52,056 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:39:52,057 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:39:52,058 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:39:52,059 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:39:52,059 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:39:52,060 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:39:52,061 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:39:52,061 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:39:52,061 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:39:52,062 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:39:52,062 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:39:52,063 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:39:52,063 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:39:52,064 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:39:52,064 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:39:52,064 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:39:52,064 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:39:52,064 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:39:52,065 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:39:52,065 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:39:52,065 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 10:39:52,073 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:39:52,073 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:39:52,073 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:39:52,073 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:39:52,074 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 10:39:52,074 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 10:39:52,074 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 10:39:52,074 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 10:39:52,074 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 10:39:52,074 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 10:39:52,074 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 10:39:52,074 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 10:39:52,075 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 10:39:52,075 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:39:52,075 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:39:52,075 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:39:52,075 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:39:52,076 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:39:52,076 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:39:52,076 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:39:52,076 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:39:52,076 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:39:52,076 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:39:52,076 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:39:52,076 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:39:52,077 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:39:52,077 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:39:52,077 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:39:52,077 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:39:52,077 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:39:52,077 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:39:52,077 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:39:52,078 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 10:39:52,078 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:39:52,078 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:39:52,078 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 10:39:52,078 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan 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 -> Taipan 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 -> fa3516ef35b9a868c2359cecbd34fc3153ca14ae [2018-12-09 10:39:52,096 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:39:52,102 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:39:52,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:39:52,105 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:39:52,105 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:39:52,106 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product41_false-unreach-call_false-termination.cil.c [2018-12-09 10:39:52,140 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/data/a5eb903e8/2a03aaf411b6427892431e19dd81bfcc/FLAG83a186059 [2018-12-09 10:39:52,501 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:39:52,501 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/sv-benchmarks/c/product-lines/minepump_spec2_product41_false-unreach-call_false-termination.cil.c [2018-12-09 10:39:52,507 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/data/a5eb903e8/2a03aaf411b6427892431e19dd81bfcc/FLAG83a186059 [2018-12-09 10:39:52,874 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/data/a5eb903e8/2a03aaf411b6427892431e19dd81bfcc [2018-12-09 10:39:52,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:39:52,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:39:52,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:39:52,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:39:52,881 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:39:52,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:39:52" (1/1) ... [2018-12-09 10:39:52,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@741f9040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:52, skipping insertion in model container [2018-12-09 10:39:52,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:39:52" (1/1) ... [2018-12-09 10:39:52,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:39:52,920 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:39:53,062 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:39:53,101 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:39:53,140 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:39:53,154 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:39:53,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53 WrapperNode [2018-12-09 10:39:53,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:39:53,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:39:53,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:39:53,155 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:39:53,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (1/1) ... [2018-12-09 10:39:53,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (1/1) ... [2018-12-09 10:39:53,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:39:53,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:39:53,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:39:53,174 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:39:53,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (1/1) ... [2018-12-09 10:39:53,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (1/1) ... [2018-12-09 10:39:53,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (1/1) ... [2018-12-09 10:39:53,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (1/1) ... [2018-12-09 10:39:53,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (1/1) ... [2018-12-09 10:39:53,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (1/1) ... [2018-12-09 10:39:53,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (1/1) ... [2018-12-09 10:39:53,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:39:53,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:39:53,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:39:53,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:39:53,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2018-12-09 10:39:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 10:39:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 10:39:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:39:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:39:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:39:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 10:39:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 10:39:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 10:39:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 10:39:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 10:39:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 10:39:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 10:39:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 10:39:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 10:39:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 10:39:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2018-12-09 10:39:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2018-12-09 10:39:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2018-12-09 10:39:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2018-12-09 10:39:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 10:39:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 10:39:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 10:39:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 10:39:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 10:39:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 10:39:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 10:39:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 10:39:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 10:39:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 10:39:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 10:39:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 10:39:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 10:39:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 10:39:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 10:39:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 10:39:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 10:39:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 10:39:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 10:39:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 10:39:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 10:39:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 10:39:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 10:39:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 10:39:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-12-09 10:39:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-12-09 10:39:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 10:39:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:39:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:39:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 10:39:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 10:39:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 10:39:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 10:39:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:39:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:39:53,571 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:39:53,571 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 10:39:53,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:39:53 BoogieIcfgContainer [2018-12-09 10:39:53,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:39:53,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:39:53,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:39:53,574 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:39:53,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:39:52" (1/3) ... [2018-12-09 10:39:53,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f88848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:39:53, skipping insertion in model container [2018-12-09 10:39:53,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:39:53" (2/3) ... [2018-12-09 10:39:53,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f88848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:39:53, skipping insertion in model container [2018-12-09 10:39:53,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:39:53" (3/3) ... [2018-12-09 10:39:53,576 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41_false-unreach-call_false-termination.cil.c [2018-12-09 10:39:53,581 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:39:53,586 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:39:53,595 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:39:53,613 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:39:53,614 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:39:53,614 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:39:53,614 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:39:53,614 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:39:53,614 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:39:53,614 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:39:53,614 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:39:53,625 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2018-12-09 10:39:53,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 10:39:53,630 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:39:53,631 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:39:53,632 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:39:53,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:53,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1705001149, now seen corresponding path program 1 times [2018-12-09 10:39:53,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:39:53,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:53,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:39:53,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:53,665 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:39:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:39:53,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:39:53,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:39:53,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 10:39:53,779 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:39:53,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 10:39:53,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 10:39:53,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:39:53,792 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 2 states. [2018-12-09 10:39:53,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:39:53,813 INFO L93 Difference]: Finished difference Result 240 states and 299 transitions. [2018-12-09 10:39:53,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 10:39:53,813 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2018-12-09 10:39:53,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:39:53,820 INFO L225 Difference]: With dead ends: 240 [2018-12-09 10:39:53,820 INFO L226 Difference]: Without dead ends: 122 [2018-12-09 10:39:53,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 10:39:53,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-12-09 10:39:53,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-12-09 10:39:53,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-12-09 10:39:53,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2018-12-09 10:39:53,851 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 51 [2018-12-09 10:39:53,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:39:53,851 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2018-12-09 10:39:53,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 10:39:53,852 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2018-12-09 10:39:53,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 10:39:53,853 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:39:53,853 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:39:53,854 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:39:53,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:53,854 INFO L82 PathProgramCache]: Analyzing trace with hash 938523538, now seen corresponding path program 1 times [2018-12-09 10:39:53,854 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:39:53,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:53,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:39:53,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:53,855 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:39:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:39:53,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:39:53,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:39:53,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:39:53,908 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:39:53,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:39:53,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:39:53,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:39:53,909 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 3 states. [2018-12-09 10:39:53,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:39:53,920 INFO L93 Difference]: Finished difference Result 189 states and 221 transitions. [2018-12-09 10:39:53,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:39:53,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-09 10:39:53,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:39:53,922 INFO L225 Difference]: With dead ends: 189 [2018-12-09 10:39:53,922 INFO L226 Difference]: Without dead ends: 113 [2018-12-09 10:39:53,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:39:53,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-12-09 10:39:53,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-12-09 10:39:53,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-12-09 10:39:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2018-12-09 10:39:53,930 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 52 [2018-12-09 10:39:53,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:39:53,930 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2018-12-09 10:39:53,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:39:53,930 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2018-12-09 10:39:53,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-12-09 10:39:53,931 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:39:53,931 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:39:53,931 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:39:53,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:53,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1968115154, now seen corresponding path program 1 times [2018-12-09 10:39:53,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:39:53,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:53,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:39:53,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:53,932 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:39:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:39:53,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:39:53,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:39:53,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:39:53,999 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:39:53,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:39:53,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:39:53,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:39:54,000 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand 7 states. [2018-12-09 10:39:54,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:39:54,154 INFO L93 Difference]: Finished difference Result 198 states and 235 transitions. [2018-12-09 10:39:54,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:39:54,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2018-12-09 10:39:54,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:39:54,156 INFO L225 Difference]: With dead ends: 198 [2018-12-09 10:39:54,156 INFO L226 Difference]: Without dead ends: 113 [2018-12-09 10:39:54,156 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:39:54,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-12-09 10:39:54,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-12-09 10:39:54,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-12-09 10:39:54,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2018-12-09 10:39:54,166 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 56 [2018-12-09 10:39:54,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:39:54,166 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2018-12-09 10:39:54,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:39:54,167 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2018-12-09 10:39:54,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 10:39:54,168 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:39:54,168 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:39:54,168 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:39:54,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:54,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1009541041, now seen corresponding path program 1 times [2018-12-09 10:39:54,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:39:54,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:54,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:39:54,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:54,170 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:39:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:39:54,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:39:54,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:39:54,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 10:39:54,247 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:39:54,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 10:39:54,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 10:39:54,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 10:39:54,248 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand 5 states. [2018-12-09 10:39:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:39:54,526 INFO L93 Difference]: Finished difference Result 285 states and 345 transitions. [2018-12-09 10:39:54,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:39:54,526 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-09 10:39:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:39:54,528 INFO L225 Difference]: With dead ends: 285 [2018-12-09 10:39:54,528 INFO L226 Difference]: Without dead ends: 200 [2018-12-09 10:39:54,529 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:39:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-12-09 10:39:54,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 182. [2018-12-09 10:39:54,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-12-09 10:39:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 211 transitions. [2018-12-09 10:39:54,550 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 211 transitions. Word has length 64 [2018-12-09 10:39:54,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:39:54,550 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 211 transitions. [2018-12-09 10:39:54,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 10:39:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 211 transitions. [2018-12-09 10:39:54,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 10:39:54,552 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:39:54,552 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:39:54,552 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:39:54,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:54,553 INFO L82 PathProgramCache]: Analyzing trace with hash -957067207, now seen corresponding path program 1 times [2018-12-09 10:39:54,553 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:39:54,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:54,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:39:54,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:54,554 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:39:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:39:54,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:39:54,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:39:54,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 10:39:54,637 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:39:54,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 10:39:54,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 10:39:54,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:39:54,637 INFO L87 Difference]: Start difference. First operand 182 states and 211 transitions. Second operand 4 states. [2018-12-09 10:39:54,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:39:54,767 INFO L93 Difference]: Finished difference Result 610 states and 755 transitions. [2018-12-09 10:39:54,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 10:39:54,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2018-12-09 10:39:54,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:39:54,771 INFO L225 Difference]: With dead ends: 610 [2018-12-09 10:39:54,771 INFO L226 Difference]: Without dead ends: 456 [2018-12-09 10:39:54,772 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 10:39:54,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2018-12-09 10:39:54,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 333. [2018-12-09 10:39:54,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2018-12-09 10:39:54,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 392 transitions. [2018-12-09 10:39:54,798 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 392 transitions. Word has length 78 [2018-12-09 10:39:54,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:39:54,799 INFO L480 AbstractCegarLoop]: Abstraction has 333 states and 392 transitions. [2018-12-09 10:39:54,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 10:39:54,799 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 392 transitions. [2018-12-09 10:39:54,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 10:39:54,800 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:39:54,800 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:39:54,800 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:39:54,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:54,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1053036634, now seen corresponding path program 1 times [2018-12-09 10:39:54,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:39:54,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:54,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:39:54,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:54,802 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:39:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:39:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:39:54,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:39:54,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:39:54,859 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:39:54,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:39:54,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:39:54,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:39:54,860 INFO L87 Difference]: Start difference. First operand 333 states and 392 transitions. Second operand 6 states. [2018-12-09 10:39:54,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:39:54,976 INFO L93 Difference]: Finished difference Result 910 states and 1101 transitions. [2018-12-09 10:39:54,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:39:54,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-12-09 10:39:54,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:39:54,979 INFO L225 Difference]: With dead ends: 910 [2018-12-09 10:39:54,979 INFO L226 Difference]: Without dead ends: 605 [2018-12-09 10:39:54,980 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 10:39:54,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2018-12-09 10:39:55,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 593. [2018-12-09 10:39:55,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2018-12-09 10:39:55,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 694 transitions. [2018-12-09 10:39:55,004 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 694 transitions. Word has length 78 [2018-12-09 10:39:55,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:39:55,005 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 694 transitions. [2018-12-09 10:39:55,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:39:55,005 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 694 transitions. [2018-12-09 10:39:55,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-09 10:39:55,006 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:39:55,006 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:39:55,006 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:39:55,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:55,006 INFO L82 PathProgramCache]: Analyzing trace with hash -154323242, now seen corresponding path program 1 times [2018-12-09 10:39:55,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:39:55,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:55,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:39:55,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:55,007 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:39:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:39:55,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:39:55,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:39:55,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 10:39:55,061 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:39:55,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 10:39:55,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 10:39:55,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:39:55,062 INFO L87 Difference]: Start difference. First operand 593 states and 694 transitions. Second operand 7 states. [2018-12-09 10:39:55,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:39:55,362 INFO L93 Difference]: Finished difference Result 1216 states and 1460 transitions. [2018-12-09 10:39:55,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 10:39:55,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2018-12-09 10:39:55,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:39:55,366 INFO L225 Difference]: With dead ends: 1216 [2018-12-09 10:39:55,366 INFO L226 Difference]: Without dead ends: 651 [2018-12-09 10:39:55,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 10:39:55,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2018-12-09 10:39:55,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 591. [2018-12-09 10:39:55,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2018-12-09 10:39:55,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 688 transitions. [2018-12-09 10:39:55,405 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 688 transitions. Word has length 82 [2018-12-09 10:39:55,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:39:55,405 INFO L480 AbstractCegarLoop]: Abstraction has 591 states and 688 transitions. [2018-12-09 10:39:55,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 10:39:55,405 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 688 transitions. [2018-12-09 10:39:55,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-09 10:39:55,407 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:39:55,407 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:39:55,407 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:39:55,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:55,407 INFO L82 PathProgramCache]: Analyzing trace with hash 620877175, now seen corresponding path program 1 times [2018-12-09 10:39:55,408 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:39:55,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:55,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:39:55,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:55,408 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:39:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:39:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:39:55,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:39:55,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:39:55,464 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:39:55,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:39:55,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:39:55,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:39:55,465 INFO L87 Difference]: Start difference. First operand 591 states and 688 transitions. Second operand 6 states. [2018-12-09 10:39:55,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:39:55,505 INFO L93 Difference]: Finished difference Result 1182 states and 1404 transitions. [2018-12-09 10:39:55,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 10:39:55,505 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2018-12-09 10:39:55,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:39:55,514 INFO L225 Difference]: With dead ends: 1182 [2018-12-09 10:39:55,514 INFO L226 Difference]: Without dead ends: 619 [2018-12-09 10:39:55,515 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 10:39:55,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2018-12-09 10:39:55,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 611. [2018-12-09 10:39:55,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2018-12-09 10:39:55,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 708 transitions. [2018-12-09 10:39:55,547 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 708 transitions. Word has length 98 [2018-12-09 10:39:55,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:39:55,548 INFO L480 AbstractCegarLoop]: Abstraction has 611 states and 708 transitions. [2018-12-09 10:39:55,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:39:55,548 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 708 transitions. [2018-12-09 10:39:55,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-09 10:39:55,550 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:39:55,550 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:39:55,550 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:39:55,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:55,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1428510667, now seen corresponding path program 1 times [2018-12-09 10:39:55,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:39:55,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:55,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:39:55,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:55,551 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:39:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:39:55,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 10:39:55,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:39:55,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 10:39:55,635 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:39:55,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:39:55,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:39:55,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:39:55,636 INFO L87 Difference]: Start difference. First operand 611 states and 708 transitions. Second operand 8 states. [2018-12-09 10:39:55,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:39:55,665 INFO L93 Difference]: Finished difference Result 1089 states and 1278 transitions. [2018-12-09 10:39:55,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 10:39:55,665 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2018-12-09 10:39:55,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:39:55,667 INFO L225 Difference]: With dead ends: 1089 [2018-12-09 10:39:55,667 INFO L226 Difference]: Without dead ends: 506 [2018-12-09 10:39:55,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:39:55,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2018-12-09 10:39:55,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 443. [2018-12-09 10:39:55,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2018-12-09 10:39:55,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 504 transitions. [2018-12-09 10:39:55,684 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 504 transitions. Word has length 98 [2018-12-09 10:39:55,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:39:55,684 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 504 transitions. [2018-12-09 10:39:55,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:39:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 504 transitions. [2018-12-09 10:39:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-09 10:39:55,685 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:39:55,685 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:39:55,685 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:39:55,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:55,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1059673870, now seen corresponding path program 1 times [2018-12-09 10:39:55,685 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:39:55,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:55,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:39:55,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:39:55,686 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:39:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:39:55,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:39:55,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 10:39:55,767 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 10:39:55,768 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 103 with the following transitions: [2018-12-09 10:39:55,769 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [24], [26], [27], [28], [32], [33], [34], [37], [39], [42], [52], [54], [63], [67], [71], [74], [79], [82], [87], [90], [105], [106], [107], [109], [112], [114], [117], [120], [132], [133], [134], [135], [136], [138], [143], [146], [147], [149], [154], [156], [157], [162], [164], [196], [200], [207], [208], [216], [222], [226], [227], [230], [231], [232], [233], [234], [235], [236], [237], [238], [240], [241], [242], [244], [245], [246], [247], [248], [249], [254], [255], [256], [257], [258], [262], [263], [264], [265], [266], [268], [269], [270], [271], [272], [273], [280], [281], [282], [284], [285], [286] [2018-12-09 10:39:55,791 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 10:39:55,791 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 10:39:56,037 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 10:39:56,038 INFO L272 AbstractInterpreter]: Visited 77 different actions 77 times. Never merged. Never widened. Performed 2631 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2631 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 134 variables. [2018-12-09 10:39:56,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:39:56,042 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 10:39:56,211 INFO L227 lantSequenceWeakener]: Weakened 75 states. On average, predicates are now at 96.64% of their original sizes. [2018-12-09 10:39:56,211 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 10:39:56,348 INFO L418 sIntCurrentIteration]: We unified 101 AI predicates to 101 [2018-12-09 10:39:56,348 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 10:39:56,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 10:39:56,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [13] total 33 [2018-12-09 10:39:56,349 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:39:56,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-12-09 10:39:56,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-12-09 10:39:56,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2018-12-09 10:39:56,350 INFO L87 Difference]: Start difference. First operand 443 states and 504 transitions. Second operand 22 states. [2018-12-09 10:40:00,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:40:00,606 INFO L93 Difference]: Finished difference Result 1201 states and 1396 transitions. [2018-12-09 10:40:00,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-09 10:40:00,606 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 102 [2018-12-09 10:40:00,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:40:00,608 INFO L225 Difference]: With dead ends: 1201 [2018-12-09 10:40:00,608 INFO L226 Difference]: Without dead ends: 786 [2018-12-09 10:40:00,609 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 114 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=1042, Unknown=0, NotChecked=0, Total=1190 [2018-12-09 10:40:00,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2018-12-09 10:40:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 780. [2018-12-09 10:40:00,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2018-12-09 10:40:00,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 881 transitions. [2018-12-09 10:40:00,635 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 881 transitions. Word has length 102 [2018-12-09 10:40:00,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:40:00,635 INFO L480 AbstractCegarLoop]: Abstraction has 780 states and 881 transitions. [2018-12-09 10:40:00,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-12-09 10:40:00,635 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 881 transitions. [2018-12-09 10:40:00,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-12-09 10:40:00,637 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:40:00,637 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:40:00,637 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:40:00,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:40:00,637 INFO L82 PathProgramCache]: Analyzing trace with hash -774343883, now seen corresponding path program 1 times [2018-12-09 10:40:00,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:40:00,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:40:00,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:40:00,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:40:00,638 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:40:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:40:00,670 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-09 10:40:00,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:40:00,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 10:40:00,671 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 10:40:00,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 10:40:00,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 10:40:00,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:40:00,671 INFO L87 Difference]: Start difference. First operand 780 states and 881 transitions. Second operand 3 states. [2018-12-09 10:40:00,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:40:00,708 INFO L93 Difference]: Finished difference Result 1015 states and 1161 transitions. [2018-12-09 10:40:00,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 10:40:00,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2018-12-09 10:40:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:40:00,711 INFO L225 Difference]: With dead ends: 1015 [2018-12-09 10:40:00,711 INFO L226 Difference]: Without dead ends: 1012 [2018-12-09 10:40:00,712 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 10:40:00,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2018-12-09 10:40:00,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 973. [2018-12-09 10:40:00,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2018-12-09 10:40:00,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1114 transitions. [2018-12-09 10:40:00,745 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1114 transitions. Word has length 137 [2018-12-09 10:40:00,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:40:00,745 INFO L480 AbstractCegarLoop]: Abstraction has 973 states and 1114 transitions. [2018-12-09 10:40:00,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 10:40:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1114 transitions. [2018-12-09 10:40:00,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-12-09 10:40:00,747 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:40:00,747 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:40:00,747 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:40:00,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:40:00,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1835418549, now seen corresponding path program 1 times [2018-12-09 10:40:00,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 10:40:00,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:40:00,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:40:00,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:40:00,748 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 10:40:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:40:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:40:00,862 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 10:40:00,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:40:00 BoogieIcfgContainer [2018-12-09 10:40:00,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:40:00,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:40:00,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:40:00,973 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:40:00,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:39:53" (3/4) ... [2018-12-09 10:40:00,975 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 10:40:01,073 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a7e29657-2d05-4fcf-bab8-791ebd4d49d4/bin-2019/utaipan/witness.graphml [2018-12-09 10:40:01,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:40:01,073 INFO L168 Benchmark]: Toolchain (without parser) took 8196.43 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 330.8 MB). Free memory was 952.4 MB in the beginning and 847.9 MB in the end (delta: 104.4 MB). Peak memory consumption was 435.3 MB. Max. memory is 11.5 GB. [2018-12-09 10:40:01,074 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:40:01,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:40:01,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:40:01,074 INFO L168 Benchmark]: Boogie Preprocessor took 20.57 ms. Allocated memory is still 1.1 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. [2018-12-09 10:40:01,074 INFO L168 Benchmark]: RCFGBuilder took 376.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-12-09 10:40:01,074 INFO L168 Benchmark]: TraceAbstraction took 7401.18 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 224.4 MB). Free memory was 1.0 GB in the beginning and 908.9 MB in the end (delta: 131.3 MB). Peak memory consumption was 355.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:40:01,075 INFO L168 Benchmark]: Witness Printer took 99.47 ms. Allocated memory is still 1.4 GB. Free memory was 908.9 MB in the beginning and 847.9 MB in the end (delta: 60.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:40:01,076 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 376.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7401.18 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 224.4 MB). Free memory was 1.0 GB in the beginning and 908.9 MB in the end (delta: 131.3 MB). Peak memory consumption was 355.7 MB. Max. memory is 11.5 GB. * Witness Printer took 99.47 ms. Allocated memory is still 1.4 GB. Free memory was 908.9 MB in the beginning and 847.9 MB in the end (delta: 60.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 830]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L43] int methAndRunningLastTime ; [L251] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L455] int pumpRunning = 0; [L456] int systemActive = 1; [L628] int waterLevel = 1; [L629] int methaneLevelCritical = 0; [L835] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=196, \old(head)=179, \old(head)=202, \old(methAndRunningLastTime)=189, \old(methaneLevelCritical)=153, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L909] int retValue_acc ; [L910] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L914] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L916] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L916] tmp = valid_product() [L918] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L920] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L921] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L903] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L724] int splverifierCounter ; [L725] int tmp ; [L726] int tmp___0 ; [L727] int tmp___1 ; [L728] int tmp___2 ; [L731] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L741] tmp = __VERIFIER_nondet_int() [L743] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L745] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L646] COND TRUE waterLevel < 2 [L647] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L745] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L462] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L494] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] int retValue_acc ; [L607] int tmp ; [L608] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L708] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L711] COND FALSE !(waterLevel < 2) [L715] retValue_acc = 0 [L716] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L612] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] tmp = isHighWaterSensorDry() [L614] COND FALSE !(\read(tmp)) [L617] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L619] retValue_acc = tmp___0 [L620] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L496] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] tmp = isHighWaterLevel() [L498] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L500] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L529] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L554] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] retValue_acc = isMethaneLevelCritical() [L556] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L529] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L529] tmp = isMethaneAlarm() [L531] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L535] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L519] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L535] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L500] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] tmp = isMethaneLevelCritical() [L60] COND FALSE !(\read(tmp)) [L76] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L477] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L776] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L755] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L658] COND FALSE !(\read(methaneLevelCritical)) [L661] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L755] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L462] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L464] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L634] COND TRUE waterLevel > 0 [L635] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L494] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L509] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L58] tmp = isMethaneLevelCritical() [L60] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L62] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L62] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L62] tmp___0 = isPumpRunning() [L64] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L65] COND FALSE !(\read(methAndRunningLastTime)) [L70] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L477] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L776] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=1] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L462] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L634] COND TRUE waterLevel > 0 [L635] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L464] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L494] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L509] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L58] tmp = isMethaneLevelCritical() [L60] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L62] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L62] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L62] tmp___0 = isPumpRunning() [L64] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L65] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L67] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L830] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 135 locations, 1 error locations. UNSAFE Result, 7.3s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 5.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1770 SDtfs, 1118 SDslu, 5915 SDs, 0 SdLazy, 2624 SolverSat, 248 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 203 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=973occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9968822491917346 AbsIntWeakeningRatio, 1.0792079207920793 AbsIntAvgWeakeningVarsNumRemoved, 85.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 329 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1075 NumberOfCodeBlocks, 1075 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 885 ConstructedInterpolants, 0 QuantifiedInterpolants, 120646 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 37/39 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...