./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec1_product50_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec1_product50_false-unreach-call_false-termination.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63231100df91d767f63e82b83b0d6c2eaec3a983 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:41:23,341 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:41:23,343 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:41:23,363 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:41:23,364 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:41:23,366 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:41:23,368 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:41:23,370 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:41:23,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:41:23,375 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:41:23,378 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:41:23,379 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:41:23,380 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:41:23,383 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:41:23,389 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:41:23,392 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:41:23,393 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:41:23,398 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:41:23,403 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:41:23,405 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:41:23,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:41:23,407 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:41:23,409 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:41:23,410 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:41:23,410 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:41:23,411 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:41:23,412 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:41:23,413 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:41:23,414 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:41:23,415 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:41:23,416 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:41:23,416 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:41:23,416 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:41:23,416 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:41:23,417 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:41:23,419 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:41:23,419 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:41:23,433 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:41:23,434 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:41:23,434 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:41:23,435 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:41:23,435 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:41:23,435 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:41:23,436 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:41:23,437 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:41:23,437 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:41:23,437 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:41:23,437 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:41:23,437 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:41:23,438 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:41:23,438 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:41:23,438 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:41:23,438 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:41:23,438 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:41:23,440 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:41:23,440 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:41:23,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:41:23,441 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:41:23,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:41:23,441 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:41:23,441 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:41:23,441 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:41:23,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:41:23,443 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:41:23,443 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:41:23,443 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:41:23,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:41:23,444 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 63231100df91d767f63e82b83b0d6c2eaec3a983 [2018-11-28 18:41:23,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:41:23,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:41:23,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:41:23,510 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:41:23,510 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:41:23,511 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec1_product50_false-unreach-call_false-termination.cil.c [2018-11-28 18:41:23,573 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f934702/391de1f3d835465b86d9862e2d7b65d7/FLAGce93b0e27 [2018-11-28 18:41:24,146 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:41:24,148 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec1_product50_false-unreach-call_false-termination.cil.c [2018-11-28 18:41:24,162 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f934702/391de1f3d835465b86d9862e2d7b65d7/FLAGce93b0e27 [2018-11-28 18:41:24,433 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f934702/391de1f3d835465b86d9862e2d7b65d7 [2018-11-28 18:41:24,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:41:24,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:41:24,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:41:24,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:41:24,445 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:41:24,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:41:24" (1/1) ... [2018-11-28 18:41:24,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c9ac3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:24, skipping insertion in model container [2018-11-28 18:41:24,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:41:24" (1/1) ... [2018-11-28 18:41:24,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:41:24,526 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:41:24,954 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:41:24,976 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:41:25,104 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:41:25,229 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:41:25,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25 WrapperNode [2018-11-28 18:41:25,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:41:25,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:41:25,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:41:25,230 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:41:25,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (1/1) ... [2018-11-28 18:41:25,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (1/1) ... [2018-11-28 18:41:25,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:41:25,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:41:25,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:41:25,275 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:41:25,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (1/1) ... [2018-11-28 18:41:25,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (1/1) ... [2018-11-28 18:41:25,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (1/1) ... [2018-11-28 18:41:25,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (1/1) ... [2018-11-28 18:41:25,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (1/1) ... [2018-11-28 18:41:25,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (1/1) ... [2018-11-28 18:41:25,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (1/1) ... [2018-11-28 18:41:25,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:41:25,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:41:25,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:41:25,322 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:41:25,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 18:41:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-28 18:41:25,419 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-28 18:41:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:41:25,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:41:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-28 18:41:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-28 18:41:25,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:41:25,420 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-28 18:41:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-28 18:41:25,420 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-28 18:41:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-28 18:41:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-28 18:41:25,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-28 18:41:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-28 18:41:25,422 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-28 18:41:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-28 18:41:25,422 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-28 18:41:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-28 18:41:25,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-28 18:41:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-28 18:41:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-28 18:41:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-28 18:41:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-28 18:41:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-28 18:41:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-28 18:41:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-28 18:41:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-28 18:41:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-28 18:41:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-28 18:41:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-28 18:41:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-28 18:41:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 18:41:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 18:41:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-28 18:41:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-28 18:41:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-28 18:41:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-28 18:41:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-28 18:41:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-28 18:41:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-28 18:41:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-28 18:41:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-28 18:41:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-28 18:41:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-28 18:41:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-28 18:41:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-28 18:41:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-28 18:41:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 18:41:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:41:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:41:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-28 18:41:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-28 18:41:25,428 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-28 18:41:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-28 18:41:25,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:41:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:41:25,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-28 18:41:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-28 18:41:26,574 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:41:26,574 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 18:41:26,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:41:26 BoogieIcfgContainer [2018-11-28 18:41:26,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:41:26,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:41:26,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:41:26,579 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:41:26,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:41:24" (1/3) ... [2018-11-28 18:41:26,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a90dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:41:26, skipping insertion in model container [2018-11-28 18:41:26,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:41:25" (2/3) ... [2018-11-28 18:41:26,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a90dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:41:26, skipping insertion in model container [2018-11-28 18:41:26,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:41:26" (3/3) ... [2018-11-28 18:41:26,583 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50_false-unreach-call_false-termination.cil.c [2018-11-28 18:41:26,594 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:41:26,603 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:41:26,621 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:41:26,656 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:41:26,657 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:41:26,657 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:41:26,657 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:41:26,657 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:41:26,657 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:41:26,657 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:41:26,657 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:41:26,658 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:41:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2018-11-28 18:41:26,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 18:41:26,689 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:26,690 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] [2018-11-28 18:41:26,693 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:26,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:26,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1889428254, now seen corresponding path program 1 times [2018-11-28 18:41:26,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:26,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:26,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:26,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:26,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:27,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:41:27,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:27,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:41:27,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:41:27,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:41:27,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:41:27,058 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2018-11-28 18:41:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:27,105 INFO L93 Difference]: Finished difference Result 264 states and 325 transitions. [2018-11-28 18:41:27,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:41:27,109 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-28 18:41:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:27,130 INFO L225 Difference]: With dead ends: 264 [2018-11-28 18:41:27,131 INFO L226 Difference]: Without dead ends: 132 [2018-11-28 18:41:27,136 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 [2018-11-28 18:41:27,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-11-28 18:41:27,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-11-28 18:41:27,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-11-28 18:41:27,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2018-11-28 18:41:27,198 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2018-11-28 18:41:27,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:27,199 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2018-11-28 18:41:27,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:41:27,200 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2018-11-28 18:41:27,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 18:41:27,203 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:27,204 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] [2018-11-28 18:41:27,204 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:27,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:27,204 INFO L82 PathProgramCache]: Analyzing trace with hash -868981089, now seen corresponding path program 1 times [2018-11-28 18:41:27,205 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:27,205 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:27,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:27,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:27,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:41:27,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:27,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:41:27,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:41:27,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:41:27,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:41:27,361 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2018-11-28 18:41:27,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:27,399 INFO L93 Difference]: Finished difference Result 209 states and 243 transitions. [2018-11-28 18:41:27,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:41:27,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-28 18:41:27,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:27,405 INFO L225 Difference]: With dead ends: 209 [2018-11-28 18:41:27,405 INFO L226 Difference]: Without dead ends: 123 [2018-11-28 18:41:27,410 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 [2018-11-28 18:41:27,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-11-28 18:41:27,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-11-28 18:41:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-11-28 18:41:27,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2018-11-28 18:41:27,427 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2018-11-28 18:41:27,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:27,428 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2018-11-28 18:41:27,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:41:27,428 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2018-11-28 18:41:27,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-28 18:41:27,430 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:27,431 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] [2018-11-28 18:41:27,431 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:27,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:27,431 INFO L82 PathProgramCache]: Analyzing trace with hash 641284078, now seen corresponding path program 1 times [2018-11-28 18:41:27,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:27,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:27,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:27,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:27,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:27,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:41:27,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:27,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:41:27,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:41:27,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:41:27,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:41:27,665 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 3 states. [2018-11-28 18:41:27,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:27,704 INFO L93 Difference]: Finished difference Result 222 states and 261 transitions. [2018-11-28 18:41:27,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:41:27,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-11-28 18:41:27,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:27,707 INFO L225 Difference]: With dead ends: 222 [2018-11-28 18:41:27,707 INFO L226 Difference]: Without dead ends: 123 [2018-11-28 18:41:27,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:41:27,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-11-28 18:41:27,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-11-28 18:41:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-11-28 18:41:27,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2018-11-28 18:41:27,725 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2018-11-28 18:41:27,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:27,725 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2018-11-28 18:41:27,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:41:27,725 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2018-11-28 18:41:27,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-28 18:41:27,728 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:27,729 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] [2018-11-28 18:41:27,729 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:27,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:27,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1095501848, now seen corresponding path program 1 times [2018-11-28 18:41:27,730 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:27,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:27,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:27,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:27,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:41:28,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:28,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 18:41:28,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 18:41:28,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 18:41:28,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 18:41:28,065 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 5 states. [2018-11-28 18:41:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:29,611 INFO L93 Difference]: Finished difference Result 321 states and 385 transitions. [2018-11-28 18:41:29,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:41:29,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-11-28 18:41:29,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:29,617 INFO L225 Difference]: With dead ends: 321 [2018-11-28 18:41:29,617 INFO L226 Difference]: Without dead ends: 222 [2018-11-28 18:41:29,618 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:41:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-11-28 18:41:29,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 203. [2018-11-28 18:41:29,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-11-28 18:41:29,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2018-11-28 18:41:29,667 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 65 [2018-11-28 18:41:29,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:29,668 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2018-11-28 18:41:29,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 18:41:29,669 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2018-11-28 18:41:29,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-28 18:41:29,674 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:29,677 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] [2018-11-28 18:41:29,680 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:29,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:29,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1883313699, now seen corresponding path program 1 times [2018-11-28 18:41:29,680 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:29,681 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:29,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:29,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:29,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:29,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:41:29,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:29,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:41:29,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:41:29,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:41:29,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:41:29,881 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand 6 states. [2018-11-28 18:41:30,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:30,347 INFO L93 Difference]: Finished difference Result 546 states and 640 transitions. [2018-11-28 18:41:30,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:41:30,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2018-11-28 18:41:30,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:30,356 INFO L225 Difference]: With dead ends: 546 [2018-11-28 18:41:30,357 INFO L226 Difference]: Without dead ends: 367 [2018-11-28 18:41:30,358 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:41:30,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2018-11-28 18:41:30,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 361. [2018-11-28 18:41:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-11-28 18:41:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 410 transitions. [2018-11-28 18:41:30,412 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 410 transitions. Word has length 79 [2018-11-28 18:41:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:30,412 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 410 transitions. [2018-11-28 18:41:30,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:41:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 410 transitions. [2018-11-28 18:41:30,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-28 18:41:30,416 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:30,416 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:41:30,417 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:30,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:30,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1517637671, now seen corresponding path program 1 times [2018-11-28 18:41:30,418 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:30,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:30,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:30,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:30,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:30,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:41:30,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:30,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:41:30,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:41:30,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:41:30,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:41:30,619 INFO L87 Difference]: Start difference. First operand 361 states and 410 transitions. Second operand 7 states. [2018-11-28 18:41:31,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:31,486 INFO L93 Difference]: Finished difference Result 396 states and 464 transitions. [2018-11-28 18:41:31,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 18:41:31,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2018-11-28 18:41:31,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:31,492 INFO L225 Difference]: With dead ends: 396 [2018-11-28 18:41:31,492 INFO L226 Difference]: Without dead ends: 393 [2018-11-28 18:41:31,493 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-28 18:41:31,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-11-28 18:41:31,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 361. [2018-11-28 18:41:31,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-11-28 18:41:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 409 transitions. [2018-11-28 18:41:31,523 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 409 transitions. Word has length 83 [2018-11-28 18:41:31,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:31,524 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 409 transitions. [2018-11-28 18:41:31,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:41:31,524 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 409 transitions. [2018-11-28 18:41:31,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-28 18:41:31,526 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:31,526 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:41:31,526 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:31,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:31,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1915616884, now seen corresponding path program 1 times [2018-11-28 18:41:31,527 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:31,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:31,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:31,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:31,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:41:31,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:31,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:41:31,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:41:31,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:41:31,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:41:31,898 INFO L87 Difference]: Start difference. First operand 361 states and 409 transitions. Second operand 6 states. [2018-11-28 18:41:32,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:32,120 INFO L93 Difference]: Finished difference Result 708 states and 814 transitions. [2018-11-28 18:41:32,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 18:41:32,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-11-28 18:41:32,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:32,125 INFO L225 Difference]: With dead ends: 708 [2018-11-28 18:41:32,125 INFO L226 Difference]: Without dead ends: 371 [2018-11-28 18:41:32,127 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:41:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-11-28 18:41:32,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2018-11-28 18:41:32,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2018-11-28 18:41:32,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 419 transitions. [2018-11-28 18:41:32,169 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 419 transitions. Word has length 84 [2018-11-28 18:41:32,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:32,170 INFO L480 AbstractCegarLoop]: Abstraction has 371 states and 419 transitions. [2018-11-28 18:41:32,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:41:32,170 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 419 transitions. [2018-11-28 18:41:32,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-28 18:41:32,172 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:32,173 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:41:32,173 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:32,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:32,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1892984630, now seen corresponding path program 1 times [2018-11-28 18:41:32,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:32,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:32,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:32,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:32,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:32,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:41:32,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:32,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 18:41:32,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 18:41:32,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 18:41:32,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:41:32,751 INFO L87 Difference]: Start difference. First operand 371 states and 419 transitions. Second operand 8 states. [2018-11-28 18:41:32,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:32,838 INFO L93 Difference]: Finished difference Result 732 states and 848 transitions. [2018-11-28 18:41:32,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:41:32,841 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2018-11-28 18:41:32,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:32,846 INFO L225 Difference]: With dead ends: 732 [2018-11-28 18:41:32,846 INFO L226 Difference]: Without dead ends: 385 [2018-11-28 18:41:32,847 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:41:32,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2018-11-28 18:41:32,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 379. [2018-11-28 18:41:32,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-11-28 18:41:32,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 427 transitions. [2018-11-28 18:41:32,876 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 427 transitions. Word has length 84 [2018-11-28 18:41:32,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:32,876 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 427 transitions. [2018-11-28 18:41:32,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 18:41:32,876 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 427 transitions. [2018-11-28 18:41:32,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-28 18:41:32,878 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:32,879 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:41:32,879 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:32,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:32,879 INFO L82 PathProgramCache]: Analyzing trace with hash -867492631, now seen corresponding path program 1 times [2018-11-28 18:41:32,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:32,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:32,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:32,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:32,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:41:33,232 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-28 18:41:33,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:41:33,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:41:33,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 18:41:33,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 18:41:33,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 18:41:33,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:41:33,240 INFO L87 Difference]: Start difference. First operand 379 states and 427 transitions. Second operand 4 states. [2018-11-28 18:41:34,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:41:34,577 INFO L93 Difference]: Finished difference Result 1153 states and 1368 transitions. [2018-11-28 18:41:34,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 18:41:34,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2018-11-28 18:41:34,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:41:34,584 INFO L225 Difference]: With dead ends: 1153 [2018-11-28 18:41:34,584 INFO L226 Difference]: Without dead ends: 798 [2018-11-28 18:41:34,585 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:41:34,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2018-11-28 18:41:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 511. [2018-11-28 18:41:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2018-11-28 18:41:34,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 572 transitions. [2018-11-28 18:41:34,649 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 572 transitions. Word has length 84 [2018-11-28 18:41:34,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:41:34,653 INFO L480 AbstractCegarLoop]: Abstraction has 511 states and 572 transitions. [2018-11-28 18:41:34,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 18:41:34,653 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 572 transitions. [2018-11-28 18:41:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-28 18:41:34,658 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:41:34,658 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:41:34,658 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:41:34,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:41:34,659 INFO L82 PathProgramCache]: Analyzing trace with hash 959625411, now seen corresponding path program 1 times [2018-11-28 18:41:34,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:41:34,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:41:34,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:34,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:41:34,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:41:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:41:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:41:34,852 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:41:35,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:41:35 BoogieIcfgContainer [2018-11-28 18:41:35,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:41:35,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:41:35,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:41:35,070 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:41:35,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:41:26" (3/4) ... [2018-11-28 18:41:35,075 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 18:41:35,275 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:41:35,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:41:35,276 INFO L168 Benchmark]: Toolchain (without parser) took 10838.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 951.4 MB in the beginning and 906.7 MB in the end (delta: 44.6 MB). Peak memory consumption was 253.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:35,277 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:41:35,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:35,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:35,278 INFO L168 Benchmark]: Boogie Preprocessor took 45.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:41:35,278 INFO L168 Benchmark]: RCFGBuilder took 1253.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:35,278 INFO L168 Benchmark]: TraceAbstraction took 8494.00 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.7 MB). Free memory was 1.1 GB in the beginning and 938.2 MB in the end (delta: 143.1 MB). Peak memory consumption was 211.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:35,281 INFO L168 Benchmark]: Witness Printer took 204.89 ms. Allocated memory is still 1.2 GB. Free memory was 938.2 MB in the beginning and 906.7 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:41:35,284 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 789.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1253.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8494.00 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.7 MB). Free memory was 1.1 GB in the beginning and 938.2 MB in the end (delta: 143.1 MB). Peak memory consumption was 211.8 MB. Max. memory is 11.5 GB. * Witness Printer took 204.89 ms. Allocated memory is still 1.2 GB. Free memory was 938.2 MB in the beginning and 906.7 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 388]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L76] int waterLevel = 1; [L77] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L395] int pumpRunning = 0; [L396] int systemActive = 1; [L769] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L258] int retValue_acc ; [L259] 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] [L263] 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] [L264] 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] [L265] 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] [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] 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] [L265] 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] [L265] tmp = valid_product() [L267] 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] [L269] 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] [L270] 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] [L249] 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] [L318] int splverifierCounter ; [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L322] int tmp___2 ; [L325] 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] [L327] 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] [L329] 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] [L335] tmp = __VERIFIER_nondet_int() [L337] 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] [L339] 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] [L94] COND TRUE waterLevel < 2 [L95] 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] [L339] 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] [L345] tmp___0 = __VERIFIER_nondet_int() [L347] COND TRUE \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=1, waterLevel=2] [L349] CALL changeMethaneLevel() 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] [L106] COND FALSE !(\read(methaneLevelCritical)) [L109] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L349] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L355] tmp___2 = __VERIFIER_nondet_int() [L357] COND FALSE !(\read(tmp___2)) [L363] tmp___1 = __VERIFIER_nondet_int() [L365] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=1, tmp___2=0, waterLevel=2] [L372] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L402] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L409] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L411] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L457] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L475] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L431] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L554] int retValue_acc ; [L555] int tmp ; [L556] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L156] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L159] COND FALSE !(waterLevel < 2) [L163] retValue_acc = 0 [L164] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L560] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] tmp = isHighWaterSensorDry() [L562] COND FALSE !(\read(tmp)) [L565] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L567] retValue_acc = tmp___0 [L568] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L436] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] tmp = isHighWaterLevel() [L438] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L440] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L440] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L475] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L411] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L417] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L115] int retValue_acc ; [L118] retValue_acc = methaneLevelCritical [L119] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L49] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L509] int retValue_acc ; [L512] retValue_acc = pumpRunning [L513] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L388] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 145 locations, 1 error locations. UNSAFE Result, 8.4s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 4.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1397 SDtfs, 769 SDslu, 2593 SDs, 0 SdLazy, 885 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 350 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 76724 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...