./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product38_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_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product38_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/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 764a558f84753bff2f3381f04a56ebf221297041 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:30:52,347 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 09:30:52,348 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 09:30:52,355 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 09:30:52,356 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 09:30:52,356 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 09:30:52,357 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 09:30:52,358 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 09:30:52,358 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 09:30:52,359 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 09:30:52,359 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 09:30:52,359 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 09:30:52,360 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 09:30:52,360 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 09:30:52,361 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 09:30:52,361 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 09:30:52,361 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 09:30:52,362 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 09:30:52,364 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 09:30:52,364 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 09:30:52,365 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 09:30:52,365 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 09:30:52,366 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 09:30:52,367 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 09:30:52,367 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 09:30:52,367 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 09:30:52,368 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 09:30:52,368 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 09:30:52,368 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 09:30:52,369 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 09:30:52,369 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 09:30:52,370 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 09:30:52,370 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 09:30:52,370 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 09:30:52,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 09:30:52,371 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 09:30:52,372 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 09:30:52,381 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 09:30:52,381 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 09:30:52,382 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 09:30:52,382 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 09:30:52,382 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 09:30:52,383 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 09:30:52,383 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 09:30:52,383 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 09:30:52,383 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 09:30:52,383 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 09:30:52,383 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 09:30:52,384 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 09:30:52,384 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 09:30:52,384 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 09:30:52,384 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 09:30:52,385 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 09:30:52,385 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 09:30:52,385 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 09:30:52,385 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 09:30:52,385 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 09:30:52,385 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 09:30:52,385 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 09:30:52,386 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 09:30:52,386 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 09:30:52,386 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 09:30:52,386 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 09:30:52,386 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 09:30:52,386 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 09:30:52,387 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 09:30:52,387 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 09:30:52,387 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 09:30:52,387 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 09:30:52,387 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 09:30:52,387 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 09:30:52,387 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 09:30:52,388 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 09:30:52,388 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_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/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 -> 764a558f84753bff2f3381f04a56ebf221297041 [2018-12-09 09:30:52,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 09:30:52,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 09:30:52,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 09:30:52,420 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 09:30:52,420 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 09:30:52,421 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product38_false-unreach-call_false-termination.cil.c [2018-12-09 09:30:52,454 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/data/2250f8ed6/7319ee2ff57047debee255c52342777a/FLAG3691b81aa [2018-12-09 09:30:52,848 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 09:30:52,849 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/sv-benchmarks/c/product-lines/minepump_spec4_product38_false-unreach-call_false-termination.cil.c [2018-12-09 09:30:52,855 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/data/2250f8ed6/7319ee2ff57047debee255c52342777a/FLAG3691b81aa [2018-12-09 09:30:52,863 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/data/2250f8ed6/7319ee2ff57047debee255c52342777a [2018-12-09 09:30:52,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 09:30:52,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 09:30:52,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 09:30:52,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 09:30:52,869 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 09:30:52,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:30:52" (1/1) ... [2018-12-09 09:30:52,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:52, skipping insertion in model container [2018-12-09 09:30:52,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:30:52" (1/1) ... [2018-12-09 09:30:52,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 09:30:52,896 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 09:30:53,045 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:30:53,054 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 09:30:53,133 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:30:53,147 INFO L195 MainTranslator]: Completed translation [2018-12-09 09:30:53,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53 WrapperNode [2018-12-09 09:30:53,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 09:30:53,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 09:30:53,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 09:30:53,148 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 09:30:53,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (1/1) ... [2018-12-09 09:30:53,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (1/1) ... [2018-12-09 09:30:53,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 09:30:53,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 09:30:53,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 09:30:53,168 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 09:30:53,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (1/1) ... [2018-12-09 09:30:53,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (1/1) ... [2018-12-09 09:30:53,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (1/1) ... [2018-12-09 09:30:53,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (1/1) ... [2018-12-09 09:30:53,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (1/1) ... [2018-12-09 09:30:53,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (1/1) ... [2018-12-09 09:30:53,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (1/1) ... [2018-12-09 09:30:53,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 09:30:53,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 09:30:53,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 09:30:53,190 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 09:30:53,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/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 09:30:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 09:30:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 09:30:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-09 09:30:53,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-09 09:30:53,221 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 09:30:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 09:30:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 09:30:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 09:30:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 09:30:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 09:30:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 09:30:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 09:30:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 09:30:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 09:30:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 09:30:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 09:30:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 09:30:53,222 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 09:30:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 09:30:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 09:30:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 09:30:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 09:30:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 09:30:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 09:30:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 09:30:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 09:30:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 09:30:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 09:30:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 09:30:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 09:30:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 09:30:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 09:30:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 09:30:53,223 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 09:30:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 09:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 09:30:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 09:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 09:30:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 09:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 09:30:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 09:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 09:30:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 09:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 09:30:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 09:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 09:30:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 09:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 09:30:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 09:30:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 09:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 09:30:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 09:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 09:30:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 09:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 09:30:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 09:30:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 09:30:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 09:30:53,480 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 09:30:53,480 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 09:30:53,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:30:53 BoogieIcfgContainer [2018-12-09 09:30:53,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 09:30:53,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 09:30:53,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 09:30:53,483 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 09:30:53,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:30:52" (1/3) ... [2018-12-09 09:30:53,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427c8130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:30:53, skipping insertion in model container [2018-12-09 09:30:53,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:30:53" (2/3) ... [2018-12-09 09:30:53,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427c8130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:30:53, skipping insertion in model container [2018-12-09 09:30:53,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:30:53" (3/3) ... [2018-12-09 09:30:53,485 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38_false-unreach-call_false-termination.cil.c [2018-12-09 09:30:53,491 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 09:30:53,496 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 09:30:53,505 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 09:30:53,523 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 09:30:53,524 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 09:30:53,524 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 09:30:53,524 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 09:30:53,524 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 09:30:53,524 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 09:30:53,524 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 09:30:53,524 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 09:30:53,536 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2018-12-09 09:30:53,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 09:30:53,541 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:30:53,541 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] [2018-12-09 09:30:53,543 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:30:53,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:53,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1964690119, now seen corresponding path program 1 times [2018-12-09 09:30:53,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:30:53,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:53,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:30:53,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:53,575 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:30:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:30:53,681 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 09:30:53,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:30:53,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 09:30:53,683 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:30:53,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 09:30:53,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 09:30:53,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 09:30:53,695 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2018-12-09 09:30:53,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:30:53,717 INFO L93 Difference]: Finished difference Result 260 states and 319 transitions. [2018-12-09 09:30:53,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 09:30:53,718 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 09:30:53,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:30:53,724 INFO L225 Difference]: With dead ends: 260 [2018-12-09 09:30:53,724 INFO L226 Difference]: Without dead ends: 130 [2018-12-09 09:30:53,726 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 09:30:53,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-12-09 09:30:53,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-12-09 09:30:53,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-12-09 09:30:53,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2018-12-09 09:30:53,755 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 46 [2018-12-09 09:30:53,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:30:53,755 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2018-12-09 09:30:53,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 09:30:53,755 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2018-12-09 09:30:53,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 09:30:53,757 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:30:53,757 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] [2018-12-09 09:30:53,757 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:30:53,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:53,758 INFO L82 PathProgramCache]: Analyzing trace with hash -213748810, now seen corresponding path program 1 times [2018-12-09 09:30:53,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:30:53,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:53,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:30:53,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:53,758 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:30:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:30:53,816 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 09:30:53,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:30:53,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 09:30:53,817 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:30:53,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 09:30:53,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 09:30:53,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 09:30:53,819 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 3 states. [2018-12-09 09:30:53,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:30:53,834 INFO L93 Difference]: Finished difference Result 205 states and 237 transitions. [2018-12-09 09:30:53,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 09:30:53,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 09:30:53,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:30:53,836 INFO L225 Difference]: With dead ends: 205 [2018-12-09 09:30:53,836 INFO L226 Difference]: Without dead ends: 121 [2018-12-09 09:30:53,837 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 09:30:53,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-09 09:30:53,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-09 09:30:53,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-09 09:30:53,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2018-12-09 09:30:53,844 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 47 [2018-12-09 09:30:53,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:30:53,845 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2018-12-09 09:30:53,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 09:30:53,845 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2018-12-09 09:30:53,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 09:30:53,846 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:30:53,846 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 09:30:53,846 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:30:53,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:53,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1180609704, now seen corresponding path program 1 times [2018-12-09 09:30:53,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:30:53,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:53,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:30:53,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:53,847 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:30:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:30:53,938 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 09:30:53,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:30:53,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 09:30:53,938 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:30:53,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 09:30:53,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 09:30:53,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 09:30:53,939 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand 7 states. [2018-12-09 09:30:54,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:30:54,110 INFO L93 Difference]: Finished difference Result 218 states and 255 transitions. [2018-12-09 09:30:54,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 09:30:54,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 09:30:54,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:30:54,112 INFO L225 Difference]: With dead ends: 218 [2018-12-09 09:30:54,112 INFO L226 Difference]: Without dead ends: 121 [2018-12-09 09:30:54,113 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 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 09:30:54,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-09 09:30:54,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-09 09:30:54,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-09 09:30:54,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2018-12-09 09:30:54,123 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 52 [2018-12-09 09:30:54,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:30:54,124 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2018-12-09 09:30:54,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 09:30:54,124 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2018-12-09 09:30:54,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-09 09:30:54,125 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:30:54,126 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] [2018-12-09 09:30:54,126 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:30:54,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:54,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1317129100, now seen corresponding path program 1 times [2018-12-09 09:30:54,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:30:54,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:54,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:30:54,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:54,127 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:30:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:30:54,199 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 09:30:54,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:30:54,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 09:30:54,199 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:30:54,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 09:30:54,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 09:30:54,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 09:30:54,200 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand 5 states. [2018-12-09 09:30:54,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:30:54,506 INFO L93 Difference]: Finished difference Result 317 states and 379 transitions. [2018-12-09 09:30:54,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 09:30:54,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-12-09 09:30:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:30:54,508 INFO L225 Difference]: With dead ends: 317 [2018-12-09 09:30:54,508 INFO L226 Difference]: Without dead ends: 220 [2018-12-09 09:30:54,509 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 09:30:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-12-09 09:30:54,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 201. [2018-12-09 09:30:54,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-12-09 09:30:54,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 227 transitions. [2018-12-09 09:30:54,530 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 227 transitions. Word has length 65 [2018-12-09 09:30:54,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:30:54,531 INFO L480 AbstractCegarLoop]: Abstraction has 201 states and 227 transitions. [2018-12-09 09:30:54,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 09:30:54,531 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 227 transitions. [2018-12-09 09:30:54,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 09:30:54,533 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:30:54,533 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] [2018-12-09 09:30:54,533 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:30:54,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:54,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1370842121, now seen corresponding path program 1 times [2018-12-09 09:30:54,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:30:54,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:54,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:30:54,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:54,535 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:30:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:30:54,652 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 09:30:54,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:30:54,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 09:30:54,652 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:30:54,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 09:30:54,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 09:30:54,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 09:30:54,653 INFO L87 Difference]: Start difference. First operand 201 states and 227 transitions. Second operand 10 states. [2018-12-09 09:30:54,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:30:54,961 INFO L93 Difference]: Finished difference Result 644 states and 795 transitions. [2018-12-09 09:30:54,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 09:30:54,961 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2018-12-09 09:30:54,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:30:54,963 INFO L225 Difference]: With dead ends: 644 [2018-12-09 09:30:54,964 INFO L226 Difference]: Without dead ends: 467 [2018-12-09 09:30:54,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-09 09:30:54,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2018-12-09 09:30:54,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 457. [2018-12-09 09:30:54,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2018-12-09 09:30:54,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 535 transitions. [2018-12-09 09:30:54,987 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 535 transitions. Word has length 79 [2018-12-09 09:30:54,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:30:54,987 INFO L480 AbstractCegarLoop]: Abstraction has 457 states and 535 transitions. [2018-12-09 09:30:54,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 09:30:54,987 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 535 transitions. [2018-12-09 09:30:54,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-09 09:30:54,989 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:30:54,989 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:30:54,989 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:30:54,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:54,989 INFO L82 PathProgramCache]: Analyzing trace with hash -400401120, now seen corresponding path program 1 times [2018-12-09 09:30:54,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:30:54,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:54,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:30:54,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:54,990 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:30:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:30:55,043 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 09:30:55,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:30:55,043 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:30:55,044 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-09 09:30:55,045 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [70], [72], [74], [83], [87], [91], [94], [99], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [135], [139], [140], [141], [142], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [264], [265], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-09 09:30:55,073 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:30:55,073 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:30:55,289 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:30:55,290 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Performed 2057 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2057 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 09:30:55,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:55,298 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:30:55,479 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 96.42% of their original sizes. [2018-12-09 09:30:55,479 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:30:55,523 INFO L418 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-12-09 09:30:55,523 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:30:55,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:30:55,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-12-09 09:30:55,524 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:30:55,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 09:30:55,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 09:30:55,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 09:30:55,525 INFO L87 Difference]: Start difference. First operand 457 states and 535 transitions. Second operand 8 states. [2018-12-09 09:30:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:30:56,409 INFO L93 Difference]: Finished difference Result 1068 states and 1292 transitions. [2018-12-09 09:30:56,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 09:30:56,409 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2018-12-09 09:30:56,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:30:56,411 INFO L225 Difference]: With dead ends: 1068 [2018-12-09 09:30:56,411 INFO L226 Difference]: Without dead ends: 635 [2018-12-09 09:30:56,412 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 09:30:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2018-12-09 09:30:56,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 618. [2018-12-09 09:30:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2018-12-09 09:30:56,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 724 transitions. [2018-12-09 09:30:56,438 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 724 transitions. Word has length 136 [2018-12-09 09:30:56,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:30:56,438 INFO L480 AbstractCegarLoop]: Abstraction has 618 states and 724 transitions. [2018-12-09 09:30:56,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 09:30:56,438 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 724 transitions. [2018-12-09 09:30:56,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-09 09:30:56,440 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:30:56,440 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:30:56,440 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:30:56,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:56,441 INFO L82 PathProgramCache]: Analyzing trace with hash 43603525, now seen corresponding path program 1 times [2018-12-09 09:30:56,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:30:56,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:56,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:30:56,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:56,442 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:30:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:30:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 09:30:56,503 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:30:56,503 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:30:56,503 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-12-09 09:30:56,503 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [71], [72], [74], [83], [87], [91], [94], [97], [99], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [135], [139], [140], [141], [142], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [264], [265], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-09 09:30:56,506 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:30:56,506 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:30:56,706 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:30:56,706 INFO L272 AbstractInterpreter]: Visited 58 different actions 79 times. Merged at 6 different actions 6 times. Never widened. Performed 4636 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4636 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 09:30:56,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:56,709 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:30:56,831 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 96.43% of their original sizes. [2018-12-09 09:30:56,831 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:30:56,894 INFO L418 sIntCurrentIteration]: We unified 131 AI predicates to 131 [2018-12-09 09:30:56,894 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:30:56,894 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:30:56,894 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-12-09 09:30:56,894 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:30:56,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 09:30:56,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 09:30:56,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-09 09:30:56,895 INFO L87 Difference]: Start difference. First operand 618 states and 724 transitions. Second operand 12 states. [2018-12-09 09:30:58,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:30:58,295 INFO L93 Difference]: Finished difference Result 1622 states and 2054 transitions. [2018-12-09 09:30:58,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 09:30:58,295 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 132 [2018-12-09 09:30:58,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:30:58,299 INFO L225 Difference]: With dead ends: 1622 [2018-12-09 09:30:58,299 INFO L226 Difference]: Without dead ends: 1087 [2018-12-09 09:30:58,300 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-12-09 09:30:58,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2018-12-09 09:30:58,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1005. [2018-12-09 09:30:58,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1005 states. [2018-12-09 09:30:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1201 transitions. [2018-12-09 09:30:58,341 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1201 transitions. Word has length 132 [2018-12-09 09:30:58,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:30:58,341 INFO L480 AbstractCegarLoop]: Abstraction has 1005 states and 1201 transitions. [2018-12-09 09:30:58,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 09:30:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1201 transitions. [2018-12-09 09:30:58,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-12-09 09:30:58,343 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:30:58,344 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:30:58,344 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:30:58,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:58,344 INFO L82 PathProgramCache]: Analyzing trace with hash 471805628, now seen corresponding path program 1 times [2018-12-09 09:30:58,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:30:58,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:58,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:30:58,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:30:58,345 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:30:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:30:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 09:30:58,404 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:30:58,404 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:30:58,404 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-12-09 09:30:58,404 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [70], [72], [74], [83], [87], [91], [94], [99], [102], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [135], [139], [140], [141], [142], [147], [149], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [264], [265], [266], [267], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-09 09:30:58,407 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:30:58,407 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:30:58,550 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:30:58,550 INFO L272 AbstractInterpreter]: Visited 58 different actions 77 times. Merged at 4 different actions 4 times. Never widened. Performed 4721 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4721 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 09:30:58,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:30:58,557 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:30:58,701 INFO L227 lantSequenceWeakener]: Weakened 72 states. On average, predicates are now at 96.42% of their original sizes. [2018-12-09 09:30:58,701 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:30:58,745 INFO L418 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2018-12-09 09:30:58,745 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:30:58,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:30:58,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-12-09 09:30:58,745 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:30:58,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 09:30:58,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 09:30:58,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-09 09:30:58,746 INFO L87 Difference]: Start difference. First operand 1005 states and 1201 transitions. Second operand 11 states. [2018-12-09 09:31:00,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:31:00,077 INFO L93 Difference]: Finished difference Result 1669 states and 2049 transitions. [2018-12-09 09:31:00,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 09:31:00,077 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2018-12-09 09:31:00,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:31:00,081 INFO L225 Difference]: With dead ends: 1669 [2018-12-09 09:31:00,082 INFO L226 Difference]: Without dead ends: 1340 [2018-12-09 09:31:00,083 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-12-09 09:31:00,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2018-12-09 09:31:00,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1296. [2018-12-09 09:31:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1296 states. [2018-12-09 09:31:00,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1538 transitions. [2018-12-09 09:31:00,136 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1538 transitions. Word has length 140 [2018-12-09 09:31:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:31:00,136 INFO L480 AbstractCegarLoop]: Abstraction has 1296 states and 1538 transitions. [2018-12-09 09:31:00,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 09:31:00,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1538 transitions. [2018-12-09 09:31:00,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-09 09:31:00,138 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:31:00,138 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:31:00,138 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:31:00,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:00,138 INFO L82 PathProgramCache]: Analyzing trace with hash 2092992294, now seen corresponding path program 1 times [2018-12-09 09:31:00,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:31:00,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:00,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:31:00,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:00,139 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:31:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:31:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 09:31:00,180 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:31:00,180 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:31:00,180 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-12-09 09:31:00,180 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [70], [72], [74], [83], [87], [91], [94], [97], [99], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [135], [139], [140], [141], [142], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [264], [265], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-09 09:31:00,182 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:31:00,182 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:31:00,330 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:31:00,330 INFO L272 AbstractInterpreter]: Visited 63 different actions 93 times. Merged at 6 different actions 6 times. Never widened. Performed 4682 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4682 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 09:31:00,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:00,333 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:31:00,444 INFO L227 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 96.5% of their original sizes. [2018-12-09 09:31:00,444 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:31:00,520 INFO L418 sIntCurrentIteration]: We unified 131 AI predicates to 131 [2018-12-09 09:31:00,520 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:31:00,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:31:00,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-12-09 09:31:00,520 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:31:00,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 09:31:00,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 09:31:00,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-12-09 09:31:00,521 INFO L87 Difference]: Start difference. First operand 1296 states and 1538 transitions. Second operand 14 states. [2018-12-09 09:31:02,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:31:02,047 INFO L93 Difference]: Finished difference Result 2248 states and 2755 transitions. [2018-12-09 09:31:02,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 09:31:02,047 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 132 [2018-12-09 09:31:02,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:31:02,050 INFO L225 Difference]: With dead ends: 2248 [2018-12-09 09:31:02,050 INFO L226 Difference]: Without dead ends: 1422 [2018-12-09 09:31:02,052 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 136 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2018-12-09 09:31:02,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2018-12-09 09:31:02,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1364. [2018-12-09 09:31:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1364 states. [2018-12-09 09:31:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1626 transitions. [2018-12-09 09:31:02,094 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1626 transitions. Word has length 132 [2018-12-09 09:31:02,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:31:02,094 INFO L480 AbstractCegarLoop]: Abstraction has 1364 states and 1626 transitions. [2018-12-09 09:31:02,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 09:31:02,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1626 transitions. [2018-12-09 09:31:02,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-09 09:31:02,096 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:31:02,096 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:31:02,096 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:31:02,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:02,096 INFO L82 PathProgramCache]: Analyzing trace with hash 285480392, now seen corresponding path program 1 times [2018-12-09 09:31:02,096 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:31:02,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:02,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:31:02,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:02,097 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:31:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:31:02,147 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 09:31:02,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:31:02,147 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:31:02,148 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-12-09 09:31:02,148 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [70], [72], [74], [83], [87], [91], [97], [99], [102], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [135], [139], [140], [141], [142], [147], [149], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [266], [267], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-09 09:31:02,149 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:31:02,150 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:31:02,320 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:31:02,320 INFO L272 AbstractInterpreter]: Visited 63 different actions 91 times. Merged at 4 different actions 4 times. Never widened. Performed 4671 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4671 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 09:31:02,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:02,325 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:31:02,434 INFO L227 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 96.48% of their original sizes. [2018-12-09 09:31:02,434 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:31:02,482 INFO L418 sIntCurrentIteration]: We unified 131 AI predicates to 131 [2018-12-09 09:31:02,483 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:31:02,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:31:02,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-12-09 09:31:02,483 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:31:02,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-09 09:31:02,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-09 09:31:02,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 09:31:02,483 INFO L87 Difference]: Start difference. First operand 1364 states and 1626 transitions. Second operand 13 states. [2018-12-09 09:31:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:31:04,184 INFO L93 Difference]: Finished difference Result 1968 states and 2374 transitions. [2018-12-09 09:31:04,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 09:31:04,184 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2018-12-09 09:31:04,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:31:04,187 INFO L225 Difference]: With dead ends: 1968 [2018-12-09 09:31:04,187 INFO L226 Difference]: Without dead ends: 1535 [2018-12-09 09:31:04,188 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 144 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2018-12-09 09:31:04,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2018-12-09 09:31:04,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1493. [2018-12-09 09:31:04,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1493 states. [2018-12-09 09:31:04,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1774 transitions. [2018-12-09 09:31:04,231 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1774 transitions. Word has length 132 [2018-12-09 09:31:04,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:31:04,232 INFO L480 AbstractCegarLoop]: Abstraction has 1493 states and 1774 transitions. [2018-12-09 09:31:04,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-09 09:31:04,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1774 transitions. [2018-12-09 09:31:04,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-09 09:31:04,233 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:31:04,234 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:31:04,234 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:31:04,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:04,234 INFO L82 PathProgramCache]: Analyzing trace with hash 882637187, now seen corresponding path program 1 times [2018-12-09 09:31:04,234 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:31:04,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:04,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:31:04,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:04,235 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:31:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:31:04,288 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-09 09:31:04,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:31:04,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 09:31:04,288 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:31:04,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 09:31:04,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 09:31:04,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 09:31:04,289 INFO L87 Difference]: Start difference. First operand 1493 states and 1774 transitions. Second operand 9 states. [2018-12-09 09:31:04,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:31:04,622 INFO L93 Difference]: Finished difference Result 2759 states and 3290 transitions. [2018-12-09 09:31:04,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 09:31:04,622 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 132 [2018-12-09 09:31:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:31:04,626 INFO L225 Difference]: With dead ends: 2759 [2018-12-09 09:31:04,626 INFO L226 Difference]: Without dead ends: 1965 [2018-12-09 09:31:04,628 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-12-09 09:31:04,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-12-09 09:31:04,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1942. [2018-12-09 09:31:04,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1942 states. [2018-12-09 09:31:04,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2273 transitions. [2018-12-09 09:31:04,684 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2273 transitions. Word has length 132 [2018-12-09 09:31:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:31:04,684 INFO L480 AbstractCegarLoop]: Abstraction has 1942 states and 2273 transitions. [2018-12-09 09:31:04,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 09:31:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2273 transitions. [2018-12-09 09:31:04,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-12-09 09:31:04,686 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:31:04,686 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:31:04,686 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:31:04,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:04,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1124514054, now seen corresponding path program 1 times [2018-12-09 09:31:04,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:31:04,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:04,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:31:04,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:04,687 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:31:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:31:04,734 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 09:31:04,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:31:04,734 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:31:04,734 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-12-09 09:31:04,735 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [70], [72], [74], [83], [87], [91], [97], [99], [102], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [137], [139], [140], [141], [142], [147], [149], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [266], [267], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-09 09:31:04,736 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:31:04,736 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:31:05,788 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 09:31:05,788 INFO L272 AbstractInterpreter]: Visited 111 different actions 803 times. Merged at 19 different actions 88 times. Widened at 1 different actions 1 times. Performed 35382 root evaluator evaluations with a maximum evaluation depth of 3. Performed 35382 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 14 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-09 09:31:05,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:05,792 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 09:31:05,792 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:31:05,792 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 09:31:05,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:31:05,798 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 09:31:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:31:05,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:31:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 09:31:05,929 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:31:06,064 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 09:31:06,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-09 09:31:06,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-09 09:31:06,080 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:31:06,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 09:31:06,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 09:31:06,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-09 09:31:06,081 INFO L87 Difference]: Start difference. First operand 1942 states and 2273 transitions. Second operand 5 states. [2018-12-09 09:31:06,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:31:06,127 INFO L93 Difference]: Finished difference Result 3213 states and 3789 transitions. [2018-12-09 09:31:06,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 09:31:06,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-12-09 09:31:06,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:31:06,131 INFO L225 Difference]: With dead ends: 3213 [2018-12-09 09:31:06,131 INFO L226 Difference]: Without dead ends: 1295 [2018-12-09 09:31:06,134 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 261 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-09 09:31:06,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2018-12-09 09:31:06,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1295. [2018-12-09 09:31:06,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1295 states. [2018-12-09 09:31:06,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1476 transitions. [2018-12-09 09:31:06,181 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1476 transitions. Word has length 132 [2018-12-09 09:31:06,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:31:06,182 INFO L480 AbstractCegarLoop]: Abstraction has 1295 states and 1476 transitions. [2018-12-09 09:31:06,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 09:31:06,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1476 transitions. [2018-12-09 09:31:06,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-09 09:31:06,183 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:31:06,184 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:31:06,184 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:31:06,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:06,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1424534047, now seen corresponding path program 1 times [2018-12-09 09:31:06,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:31:06,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:06,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:31:06,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:06,185 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:31:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:31:06,230 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 09:31:06,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:31:06,230 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:31:06,230 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-12-09 09:31:06,230 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [46], [47], [48], [51], [53], [56], [63], [66], [67], [71], [72], [74], [83], [87], [91], [94], [97], [99], [102], [105], [107], [113], [116], [126], [127], [128], [129], [130], [132], [135], [139], [140], [141], [142], [147], [149], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [258], [259], [262], [263], [264], [265], [266], [267], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293] [2018-12-09 09:31:06,231 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:31:06,231 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:31:06,478 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 09:31:06,478 INFO L272 AbstractInterpreter]: Visited 63 different actions 131 times. Merged at 8 different actions 15 times. Never widened. Performed 8481 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8481 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-12-09 09:31:06,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:06,480 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 09:31:06,567 INFO L227 lantSequenceWeakener]: Weakened 72 states. On average, predicates are now at 96.75% of their original sizes. [2018-12-09 09:31:06,568 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 09:31:06,653 INFO L418 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-12-09 09:31:06,653 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 09:31:06,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 09:31:06,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-12-09 09:31:06,653 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:31:06,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 09:31:06,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 09:31:06,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2018-12-09 09:31:06,654 INFO L87 Difference]: Start difference. First operand 1295 states and 1476 transitions. Second operand 15 states. [2018-12-09 09:31:09,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:31:09,054 INFO L93 Difference]: Finished difference Result 3409 states and 4150 transitions. [2018-12-09 09:31:09,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-09 09:31:09,055 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 136 [2018-12-09 09:31:09,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:31:09,060 INFO L225 Difference]: With dead ends: 3409 [2018-12-09 09:31:09,060 INFO L226 Difference]: Without dead ends: 2474 [2018-12-09 09:31:09,062 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2018-12-09 09:31:09,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2018-12-09 09:31:09,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2253. [2018-12-09 09:31:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2253 states. [2018-12-09 09:31:09,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 2625 transitions. [2018-12-09 09:31:09,123 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 2625 transitions. Word has length 136 [2018-12-09 09:31:09,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:31:09,124 INFO L480 AbstractCegarLoop]: Abstraction has 2253 states and 2625 transitions. [2018-12-09 09:31:09,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 09:31:09,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 2625 transitions. [2018-12-09 09:31:09,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-12-09 09:31:09,125 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:31:09,125 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:31:09,125 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:31:09,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:09,126 INFO L82 PathProgramCache]: Analyzing trace with hash -585500385, now seen corresponding path program 1 times [2018-12-09 09:31:09,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:31:09,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:09,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:31:09,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:09,126 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:31:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:31:09,169 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-09 09:31:09,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 09:31:09,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 09:31:09,169 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 09:31:09,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 09:31:09,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 09:31:09,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 09:31:09,170 INFO L87 Difference]: Start difference. First operand 2253 states and 2625 transitions. Second operand 6 states. [2018-12-09 09:31:09,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:31:09,308 INFO L93 Difference]: Finished difference Result 2280 states and 2653 transitions. [2018-12-09 09:31:09,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 09:31:09,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-12-09 09:31:09,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:31:09,315 INFO L225 Difference]: With dead ends: 2280 [2018-12-09 09:31:09,315 INFO L226 Difference]: Without dead ends: 2277 [2018-12-09 09:31:09,316 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 09:31:09,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2018-12-09 09:31:09,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 2253. [2018-12-09 09:31:09,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2253 states. [2018-12-09 09:31:09,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 2619 transitions. [2018-12-09 09:31:09,398 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 2619 transitions. Word has length 136 [2018-12-09 09:31:09,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:31:09,399 INFO L480 AbstractCegarLoop]: Abstraction has 2253 states and 2619 transitions. [2018-12-09 09:31:09,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 09:31:09,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 2619 transitions. [2018-12-09 09:31:09,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-12-09 09:31:09,401 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:31:09,401 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:31:09,401 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:31:09,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:09,401 INFO L82 PathProgramCache]: Analyzing trace with hash 295754487, now seen corresponding path program 1 times [2018-12-09 09:31:09,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:31:09,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:09,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:31:09,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:09,402 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:31:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:31:09,502 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-09 09:31:09,502 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:31:09,502 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 09:31:09,502 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 145 with the following transitions: [2018-12-09 09:31:09,503 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [44], [45], [48], [51], [53], [59], [63], [66], [67], [71], [72], [73], [74], [83], [87], [91], [94], [97], [99], [102], [107], [113], [116], [126], [127], [128], [129], [130], [132], [137], [139], [140], [141], [142], [145], [147], [149], [150], [151], [154], [157], [161], [167], [196], [200], [201], [205], [208], [210], [213], [220], [223], [228], [232], [233], [236], [237], [238], [239], [240], [242], [243], [244], [245], [246], [247], [248], [249], [250], [252], [254], [255], [256], [257], [260], [261], [262], [263], [264], [265], [266], [267], [270], [271], [274], [275], [276], [277], [278], [279], [280], [281], [286], [287], [288], [290], [291], [292], [293], [296], [297] [2018-12-09 09:31:09,504 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 09:31:09,504 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 09:31:09,944 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 09:31:09,944 INFO L272 AbstractInterpreter]: Visited 118 different actions 392 times. Merged at 19 different actions 48 times. Never widened. Performed 14338 root evaluator evaluations with a maximum evaluation depth of 3. Performed 14338 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 4 different actions. Largest state had 133 variables. [2018-12-09 09:31:09,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:09,945 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 09:31:09,945 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 09:31:09,945 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 09:31:09,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:31:09,953 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 09:31:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 09:31:10,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 09:31:10,082 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 09:31:10,082 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 09:31:10,230 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-09 09:31:10,245 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 09:31:10,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-09 09:31:10,245 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 09:31:10,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 09:31:10,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 09:31:10,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-09 09:31:10,246 INFO L87 Difference]: Start difference. First operand 2253 states and 2619 transitions. Second operand 15 states. [2018-12-09 09:31:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 09:31:11,039 INFO L93 Difference]: Finished difference Result 3681 states and 4598 transitions. [2018-12-09 09:31:11,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 09:31:11,039 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 144 [2018-12-09 09:31:11,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 09:31:11,043 INFO L225 Difference]: With dead ends: 3681 [2018-12-09 09:31:11,043 INFO L226 Difference]: Without dead ends: 2122 [2018-12-09 09:31:11,046 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 280 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-09 09:31:11,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2018-12-09 09:31:11,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 1702. [2018-12-09 09:31:11,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1702 states. [2018-12-09 09:31:11,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 1951 transitions. [2018-12-09 09:31:11,103 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 1951 transitions. Word has length 144 [2018-12-09 09:31:11,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 09:31:11,103 INFO L480 AbstractCegarLoop]: Abstraction has 1702 states and 1951 transitions. [2018-12-09 09:31:11,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 09:31:11,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 1951 transitions. [2018-12-09 09:31:11,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-12-09 09:31:11,105 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:31:11,105 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 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] [2018-12-09 09:31:11,105 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 09:31:11,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:31:11,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1586802669, now seen corresponding path program 1 times [2018-12-09 09:31:11,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:31:11,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:11,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:31:11,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:31:11,106 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:31:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:31:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:31:11,215 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 09:31:11,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:31:11 BoogieIcfgContainer [2018-12-09 09:31:11,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 09:31:11,323 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 09:31:11,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 09:31:11,323 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 09:31:11,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:30:53" (3/4) ... [2018-12-09 09:31:11,325 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 09:31:11,454 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ac3d5dd1-7467-4dbf-b0b2-019b908f88c0/bin-2019/utaipan/witness.graphml [2018-12-09 09:31:11,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 09:31:11,455 INFO L168 Benchmark]: Toolchain (without parser) took 18589.74 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 964.2 MB). Free memory was 948.1 MB in the beginning and 1.9 GB in the end (delta: -930.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 11.5 GB. [2018-12-09 09:31:11,456 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:31:11,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2018-12-09 09:31:11,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.78 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 09:31:11,457 INFO L168 Benchmark]: Boogie Preprocessor took 21.23 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 09:31:11,457 INFO L168 Benchmark]: RCFGBuilder took 291.22 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2018-12-09 09:31:11,457 INFO L168 Benchmark]: TraceAbstraction took 17841.48 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 750.8 MB). Free memory was 1.1 GB in the beginning and 808.1 MB in the end (delta: 245.6 MB). Peak memory consumption was 996.4 MB. Max. memory is 11.5 GB. [2018-12-09 09:31:11,458 INFO L168 Benchmark]: Witness Printer took 131.89 ms. Allocated memory was 1.9 GB in the beginning and 2.0 GB in the end (delta: 99.6 MB). Free memory was 808.1 MB in the beginning and 1.9 GB in the end (delta: -1.1 GB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-09 09:31:11,459 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.78 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.23 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 291.22 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17841.48 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 750.8 MB). Free memory was 1.1 GB in the beginning and 808.1 MB in the end (delta: 245.6 MB). Peak memory consumption was 996.4 MB. Max. memory is 11.5 GB. * Witness Printer took 131.89 ms. Allocated memory was 1.9 GB in the beginning and 2.0 GB in the end (delta: 99.6 MB). Free memory was 808.1 MB in the beginning and 1.9 GB in the end (delta: -1.1 GB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 247]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L349] int pumpRunning = 0; [L350] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L281] int splverifierCounter ; [L282] int tmp ; [L283] int tmp___0 ; [L284] int tmp___1 ; [L285] int tmp___2 ; [L288] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L290] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L292] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L298] tmp = __VERIFIER_nondet_int() [L300] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L302] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] COND TRUE waterLevel < 2 [L168] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L302] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L335] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L356] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L363] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L365] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L411] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L414] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L429] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L385] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L388] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L390] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] int retValue_acc ; [L509] int tmp ; [L510] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L514] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L229] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] COND FALSE !(waterLevel < 2) [L236] retValue_acc = 0 [L237] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L514] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L514] tmp = isHighWaterSensorDry() [L516] COND FALSE !(\read(tmp)) [L519] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L521] retValue_acc = tmp___0 [L522] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L390] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L390] tmp = isHighWaterLevel() [L392] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L394] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L439] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L394] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L429] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L365] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L371] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L254] int tmp ; [L255] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L259] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L259] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L259] tmp = getWaterLevel() [L261] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L371] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L335] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L290] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L292] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L335] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L356] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L358] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE waterLevel > 0 [L156] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L358] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L363] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L365] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L411] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L414] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L416] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L452] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L456] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L456] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L416] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L424] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L385] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L388] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L403] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L424] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L365] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L371] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L254] int tmp ; [L255] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L259] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L259] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L259] tmp = getWaterLevel() [L261] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L371] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L335] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L290] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L292] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L298] tmp = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L308] tmp___0 = __VERIFIER_nondet_int() [L310] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L318] tmp___2 = __VERIFIER_nondet_int() [L320] COND FALSE !(\read(tmp___2)) [L326] tmp___1 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=1] [L335] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L356] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L358] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L155] COND TRUE waterLevel > 0 [L156] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L358] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L363] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L365] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L411] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L414] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L416] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L452] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L456] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L456] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L456] retValue_acc = isMethaneLevelCritical() [L458] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L416] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L416] tmp = isMethaneAlarm() [L418] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L424] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L385] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L388] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L403] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L424] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L365] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L371] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L254] int tmp ; [L255] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L259] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L259] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L259] tmp = getWaterLevel() [L261] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L263] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L463] int retValue_acc ; [L466] retValue_acc = pumpRunning [L467] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L263] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L263] tmp___0 = isPumpRunning() [L265] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L267] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L247] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 143 locations, 1 error locations. UNSAFE Result, 17.8s OverallTime, 16 OverallIterations, 3 TraceHistogramMax, 11.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2895 SDtfs, 3490 SDslu, 9874 SDs, 0 SdLazy, 6030 SolverSat, 973 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 1515 GetRequests, 1316 SyntacticMatches, 10 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2253occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.6s AbstIntTime, 8 AbstIntIterations, 6 AbstIntStrong, 0.9980221498333398 AbsIntWeakeningRatio, 0.8977556109725686 AbsIntAvgWeakeningVarsNumRemoved, 39.72194513715711 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 960 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 2105 NumberOfCodeBlocks, 2105 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2174 ConstructedInterpolants, 0 QuantifiedInterpolants, 372592 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1676 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 19 InterpolantComputations, 8 PerfectInterpolantSequences, 344/382 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...