/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 22:33:57,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 22:33:57,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 22:33:58,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 22:33:58,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 22:33:58,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 22:33:58,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 22:33:58,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 22:33:58,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 22:33:58,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 22:33:58,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 22:33:58,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 22:33:58,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 22:33:58,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 22:33:58,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 22:33:58,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 22:33:58,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 22:33:58,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 22:33:58,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 22:33:58,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 22:33:58,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 22:33:58,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 22:33:58,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 22:33:58,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 22:33:58,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 22:33:58,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 22:33:58,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 22:33:58,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 22:33:58,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 22:33:58,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 22:33:58,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 22:33:58,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 22:33:58,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 22:33:58,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 22:33:58,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 22:33:58,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 22:33:58,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 22:33:58,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 22:33:58,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 22:33:58,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 22:33:58,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 22:33:58,094 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 22:33:58,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 22:33:58,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 22:33:58,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 22:33:58,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 22:33:58,139 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 22:33:58,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 22:33:58,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 22:33:58,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 22:33:58,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 22:33:58,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 22:33:58,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 22:33:58,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 22:33:58,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 22:33:58,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 22:33:58,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 22:33:58,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 22:33:58,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 22:33:58,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 22:33:58,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 22:33:58,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 22:33:58,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 22:33:58,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 22:33:58,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 22:33:58,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 22:33:58,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 22:33:58,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 22:33:58,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 22:33:58,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 22:33:58,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 22:33:58,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; [2020-08-18 22:33:58,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 22:33:58,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 22:33:58,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 22:33:58,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 22:33:58,458 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 22:33:58,458 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-08-18 22:33:58,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf8fcfd06/fd626b3bf90a4affa72ab53ca1bfb76f/FLAGe7be39408 [2020-08-18 22:33:59,134 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 22:33:59,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-08-18 22:33:59,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf8fcfd06/fd626b3bf90a4affa72ab53ca1bfb76f/FLAGe7be39408 [2020-08-18 22:33:59,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf8fcfd06/fd626b3bf90a4affa72ab53ca1bfb76f [2020-08-18 22:33:59,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 22:33:59,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 22:33:59,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 22:33:59,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 22:33:59,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 22:33:59,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:33:59" (1/1) ... [2020-08-18 22:33:59,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d644e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:33:59, skipping insertion in model container [2020-08-18 22:33:59,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:33:59" (1/1) ... [2020-08-18 22:33:59,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 22:33:59,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 22:34:00,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:34:00,054 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 22:34:00,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:34:00,214 INFO L208 MainTranslator]: Completed translation [2020-08-18 22:34:00,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:34:00 WrapperNode [2020-08-18 22:34:00,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 22:34:00,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 22:34:00,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 22:34:00,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 22:34:00,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:34:00" (1/1) ... [2020-08-18 22:34:00,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:34:00" (1/1) ... [2020-08-18 22:34:00,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:34:00" (1/1) ... [2020-08-18 22:34:00,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:34:00" (1/1) ... [2020-08-18 22:34:00,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:34:00" (1/1) ... [2020-08-18 22:34:00,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:34:00" (1/1) ... [2020-08-18 22:34:00,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:34:00" (1/1) ... [2020-08-18 22:34:00,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 22:34:00,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 22:34:00,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 22:34:00,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 22:34:00,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:34:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 22:34:00,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 22:34:00,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 22:34:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 22:34:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 22:34:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 22:34:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 22:34:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 22:34:00,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 22:34:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 22:34:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 22:34:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 22:34:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 22:34:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 22:34:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 22:34:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 22:34:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 22:34:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-08-18 22:34:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-08-18 22:34:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-08-18 22:34:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-08-18 22:34:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-08-18 22:34:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-08-18 22:34:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 22:34:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-08-18 22:34:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-08-18 22:34:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 22:34:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 22:34:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 22:34:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 22:34:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 22:34:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 22:34:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-18 22:34:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 22:34:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-18 22:34:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 22:34:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 22:34:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 22:34:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 22:34:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 22:34:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 22:34:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 22:34:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 22:34:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 22:34:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 22:34:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 22:34:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 22:34:00,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 22:34:00,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-18 22:34:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 22:34:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 22:34:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 22:34:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 22:34:00,396 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 22:34:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 22:34:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 22:34:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 22:34:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 22:34:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 22:34:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 22:34:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 22:34:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 22:34:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 22:34:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 22:34:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 22:34:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 22:34:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 22:34:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 22:34:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 22:34:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 22:34:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 22:34:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 22:34:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 22:34:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 22:34:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 22:34:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 22:34:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 22:34:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 22:34:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 22:34:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 22:34:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 22:34:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 22:34:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-18 22:34:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 22:34:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 22:34:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 22:34:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 22:34:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 22:34:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-18 22:34:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 22:34:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 22:34:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 22:34:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 22:34:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 22:34:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-08-18 22:34:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 22:34:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-08-18 22:34:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-08-18 22:34:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-18 22:34:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-08-18 22:34:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-08-18 22:34:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 22:34:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-08-18 22:34:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-08-18 22:34:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-08-18 22:34:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 22:34:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 22:34:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 22:34:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 22:34:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 22:34:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 22:34:01,596 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 22:34:01,598 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 22:34:01,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:34:01 BoogieIcfgContainer [2020-08-18 22:34:01,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 22:34:01,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 22:34:01,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 22:34:01,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 22:34:01,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:33:59" (1/3) ... [2020-08-18 22:34:01,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5181a167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:34:01, skipping insertion in model container [2020-08-18 22:34:01,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:34:00" (2/3) ... [2020-08-18 22:34:01,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5181a167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:34:01, skipping insertion in model container [2020-08-18 22:34:01,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:34:01" (3/3) ... [2020-08-18 22:34:01,621 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-08-18 22:34:01,632 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 22:34:01,639 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 22:34:01,653 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 22:34:01,676 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 22:34:01,677 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 22:34:01,677 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 22:34:01,677 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 22:34:01,677 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 22:34:01,677 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 22:34:01,677 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 22:34:01,678 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 22:34:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states. [2020-08-18 22:34:01,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-08-18 22:34:01,715 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:34:01,717 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:34:01,717 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:34:01,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:34:01,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1384301403, now seen corresponding path program 1 times [2020-08-18 22:34:01,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:34:01,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128969936] [2020-08-18 22:34:01,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:34:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,589 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 22:34:02,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:34:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:34:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 22:34:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:34:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:34:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 22:34:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:34:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 22:34:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-18 22:34:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 22:34:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 22:34:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 22:34:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-18 22:34:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-18 22:34:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:02,716 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-18 22:34:02,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128969936] [2020-08-18 22:34:02,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:34:02,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 22:34:02,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825154634] [2020-08-18 22:34:02,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 22:34:02,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:34:02,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 22:34:02,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 22:34:02,743 INFO L87 Difference]: Start difference. First operand 248 states. Second operand 5 states. [2020-08-18 22:34:05,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:34:05,023 INFO L93 Difference]: Finished difference Result 448 states and 591 transitions. [2020-08-18 22:34:05,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 22:34:05,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2020-08-18 22:34:05,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:34:05,042 INFO L225 Difference]: With dead ends: 448 [2020-08-18 22:34:05,042 INFO L226 Difference]: Without dead ends: 254 [2020-08-18 22:34:05,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:34:05,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-08-18 22:34:05,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 205. [2020-08-18 22:34:05,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-08-18 22:34:05,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 252 transitions. [2020-08-18 22:34:05,155 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 252 transitions. Word has length 84 [2020-08-18 22:34:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:34:05,156 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 252 transitions. [2020-08-18 22:34:05,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 22:34:05,157 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 252 transitions. [2020-08-18 22:34:05,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-08-18 22:34:05,162 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:34:05,162 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:34:05,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 22:34:05,163 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:34:05,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:34:05,163 INFO L82 PathProgramCache]: Analyzing trace with hash 435784209, now seen corresponding path program 1 times [2020-08-18 22:34:05,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:34:05,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274982222] [2020-08-18 22:34:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:34:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,558 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 22:34:05,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:34:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:34:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 22:34:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:34:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:34:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 22:34:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:34:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 22:34:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-18 22:34:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 22:34:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 22:34:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 22:34:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 22:34:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-18 22:34:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:05,662 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-18 22:34:05,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274982222] [2020-08-18 22:34:05,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:34:05,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 22:34:05,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030646997] [2020-08-18 22:34:05,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 22:34:05,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:34:05,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 22:34:05,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 22:34:05,666 INFO L87 Difference]: Start difference. First operand 205 states and 252 transitions. Second operand 6 states. [2020-08-18 22:34:06,344 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 22:34:08,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:34:08,083 INFO L93 Difference]: Finished difference Result 372 states and 469 transitions. [2020-08-18 22:34:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 22:34:08,084 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2020-08-18 22:34:08,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:34:08,088 INFO L225 Difference]: With dead ends: 372 [2020-08-18 22:34:08,089 INFO L226 Difference]: Without dead ends: 238 [2020-08-18 22:34:08,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-08-18 22:34:08,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-08-18 22:34:08,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 196. [2020-08-18 22:34:08,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-08-18 22:34:08,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 240 transitions. [2020-08-18 22:34:08,140 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 240 transitions. Word has length 85 [2020-08-18 22:34:08,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:34:08,140 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 240 transitions. [2020-08-18 22:34:08,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 22:34:08,141 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 240 transitions. [2020-08-18 22:34:08,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-08-18 22:34:08,143 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:34:08,144 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:34:08,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 22:34:08,144 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:34:08,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:34:08,145 INFO L82 PathProgramCache]: Analyzing trace with hash 681264365, now seen corresponding path program 1 times [2020-08-18 22:34:08,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:34:08,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178485471] [2020-08-18 22:34:08,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:34:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,570 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 22:34:08,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:34:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:34:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 22:34:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:34:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:34:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 22:34:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:34:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 22:34:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-18 22:34:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 22:34:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 22:34:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-18 22:34:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-18 22:34:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 22:34:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:08,803 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-18 22:34:08,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178485471] [2020-08-18 22:34:08,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:34:08,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 22:34:08,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154559701] [2020-08-18 22:34:08,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 22:34:08,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:34:08,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 22:34:08,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-18 22:34:08,806 INFO L87 Difference]: Start difference. First operand 196 states and 240 transitions. Second operand 12 states. [2020-08-18 22:34:09,490 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 22:34:10,139 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-08-18 22:34:10,883 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 213 [2020-08-18 22:34:11,934 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 22:34:12,307 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-08-18 22:34:16,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:34:16,152 INFO L93 Difference]: Finished difference Result 643 states and 818 transitions. [2020-08-18 22:34:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-18 22:34:16,153 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2020-08-18 22:34:16,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:34:16,159 INFO L225 Difference]: With dead ends: 643 [2020-08-18 22:34:16,159 INFO L226 Difference]: Without dead ends: 488 [2020-08-18 22:34:16,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-08-18 22:34:16,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-08-18 22:34:16,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 397. [2020-08-18 22:34:16,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-08-18 22:34:16,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 497 transitions. [2020-08-18 22:34:16,312 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 497 transitions. Word has length 90 [2020-08-18 22:34:16,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:34:16,314 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 497 transitions. [2020-08-18 22:34:16,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 22:34:16,315 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 497 transitions. [2020-08-18 22:34:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-08-18 22:34:16,321 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:34:16,322 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:34:16,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 22:34:16,322 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:34:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:34:16,323 INFO L82 PathProgramCache]: Analyzing trace with hash -326319286, now seen corresponding path program 1 times [2020-08-18 22:34:16,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:34:16,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284264857] [2020-08-18 22:34:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:34:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,696 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 22:34:16,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:34:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:34:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 22:34:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:34:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:34:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 22:34:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:34:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 22:34:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-18 22:34:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 22:34:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 22:34:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-18 22:34:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-18 22:34:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 22:34:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-18 22:34:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:16,885 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-18 22:34:16,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284264857] [2020-08-18 22:34:16,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:34:16,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 22:34:16,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189216481] [2020-08-18 22:34:16,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 22:34:16,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:34:16,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 22:34:16,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:34:16,890 INFO L87 Difference]: Start difference. First operand 397 states and 497 transitions. Second operand 10 states. [2020-08-18 22:34:17,377 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 22:34:19,448 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-08-18 22:34:19,913 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-08-18 22:34:20,294 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-08-18 22:34:20,619 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 22:34:22,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:34:22,486 INFO L93 Difference]: Finished difference Result 1234 states and 1653 transitions. [2020-08-18 22:34:22,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 22:34:22,494 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-08-18 22:34:22,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:34:22,500 INFO L225 Difference]: With dead ends: 1234 [2020-08-18 22:34:22,500 INFO L226 Difference]: Without dead ends: 878 [2020-08-18 22:34:22,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-08-18 22:34:22,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-08-18 22:34:22,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 778. [2020-08-18 22:34:22,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-08-18 22:34:22,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 987 transitions. [2020-08-18 22:34:22,704 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 987 transitions. Word has length 96 [2020-08-18 22:34:22,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:34:22,706 INFO L479 AbstractCegarLoop]: Abstraction has 778 states and 987 transitions. [2020-08-18 22:34:22,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 22:34:22,706 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 987 transitions. [2020-08-18 22:34:22,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-08-18 22:34:22,714 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:34:22,714 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:34:22,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 22:34:22,715 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:34:22,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:34:22,715 INFO L82 PathProgramCache]: Analyzing trace with hash 635729360, now seen corresponding path program 1 times [2020-08-18 22:34:22,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:34:22,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870901244] [2020-08-18 22:34:22,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:34:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,061 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 22:34:23,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:34:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:34:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 22:34:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 22:34:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:34:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 22:34:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 22:34:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 22:34:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-18 22:34:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 22:34:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 22:34:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-18 22:34:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 22:34:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-18 22:34:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 22:34:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 22:34:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:34:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-18 22:34:23,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870901244] [2020-08-18 22:34:23,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:34:23,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 22:34:23,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837664178] [2020-08-18 22:34:23,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:34:23,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:34:23,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:34:23,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:34:23,201 INFO L87 Difference]: Start difference. First operand 778 states and 987 transitions. Second operand 8 states. [2020-08-18 22:34:24,005 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 22:34:27,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:34:27,812 INFO L93 Difference]: Finished difference Result 1840 states and 2490 transitions. [2020-08-18 22:34:27,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 22:34:27,813 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2020-08-18 22:34:27,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:34:27,821 INFO L225 Difference]: With dead ends: 1840 [2020-08-18 22:34:27,821 INFO L226 Difference]: Without dead ends: 1103 [2020-08-18 22:34:27,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2020-08-18 22:34:27,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-08-18 22:34:28,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1024. [2020-08-18 22:34:28,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2020-08-18 22:34:28,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1298 transitions. [2020-08-18 22:34:28,057 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1298 transitions. Word has length 100 [2020-08-18 22:34:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:34:28,057 INFO L479 AbstractCegarLoop]: Abstraction has 1024 states and 1298 transitions. [2020-08-18 22:34:28,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:34:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1298 transitions. [2020-08-18 22:34:28,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-08-18 22:34:28,060 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:34:28,060 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 22:34:28,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 22:34:28,061 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:34:28,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:34:28,061 INFO L82 PathProgramCache]: Analyzing trace with hash -950611836, now seen corresponding path program 1 times [2020-08-18 22:34:28,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:34:28,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040162038] [2020-08-18 22:34:28,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:34:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 22:34:28,141 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 22:34:28,141 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 22:34:28,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 22:34:28,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 10:34:28 BoogieIcfgContainer [2020-08-18 22:34:28,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 22:34:28,171 INFO L168 Benchmark]: Toolchain (without parser) took 28662.03 ms. Allocated memory was 141.6 MB in the beginning and 641.7 MB in the end (delta: 500.2 MB). Free memory was 102.1 MB in the beginning and 110.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 492.2 MB. Max. memory is 7.1 GB. [2020-08-18 22:34:28,172 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 22:34:28,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.75 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 167.3 MB in the end (delta: -65.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-08-18 22:34:28,174 INFO L168 Benchmark]: Boogie Preprocessor took 97.91 ms. Allocated memory is still 205.0 MB. Free memory was 167.3 MB in the beginning and 162.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-08-18 22:34:28,175 INFO L168 Benchmark]: RCFGBuilder took 1295.98 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 162.9 MB in the beginning and 176.1 MB in the end (delta: -13.2 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. [2020-08-18 22:34:28,176 INFO L168 Benchmark]: TraceAbstraction took 26558.23 ms. Allocated memory was 235.4 MB in the beginning and 641.7 MB in the end (delta: 406.3 MB). Free memory was 174.7 MB in the beginning and 110.1 MB in the end (delta: 64.7 MB). Peak memory consumption was 471.0 MB. Max. memory is 7.1 GB. [2020-08-18 22:34:28,179 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.75 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 167.3 MB in the end (delta: -65.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.91 ms. Allocated memory is still 205.0 MB. Free memory was 167.3 MB in the beginning and 162.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1295.98 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 162.9 MB in the beginning and 176.1 MB in the end (delta: -13.2 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26558.23 ms. Allocated memory was 235.4 MB in the beginning and 641.7 MB in the end (delta: 406.3 MB). Free memory was 174.7 MB in the beginning and 110.1 MB in the end (delta: 64.7 MB). Peak memory consumption was 471.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1022]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L510] int __SELECTED_FEATURE_base ; [L511] int __SELECTED_FEATURE_highWaterSensor ; [L512] int __SELECTED_FEATURE_lowWaterSensor ; [L513] int __SELECTED_FEATURE_methaneQuery ; [L514] int __SELECTED_FEATURE_methaneAlarm ; [L515] int __SELECTED_FEATURE_stopCommand ; [L516] int __SELECTED_FEATURE_startCommand ; [L517] int __GUIDSL_ROOT_PRODUCTION ; [L605] int pumpRunning = 0; [L606] int systemActive = 1; [L1027] int waterLevel = 1; [L1028] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] CALL select_helpers() [L968] __GUIDSL_ROOT_PRODUCTION = 1 [L492] RET select_helpers() [L493] CALL select_features() [L953] __SELECTED_FEATURE_base = 1 [L954] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L954] RET, EXPR select_one() [L954] __SELECTED_FEATURE_highWaterSensor = select_one() [L955] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L955] RET, EXPR select_one() [L955] __SELECTED_FEATURE_lowWaterSensor = select_one() [L956] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L956] RET, EXPR select_one() [L956] __SELECTED_FEATURE_methaneQuery = select_one() [L957] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L957] RET, EXPR select_one() [L957] __SELECTED_FEATURE_methaneAlarm = select_one() [L958] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L958] RET, EXPR select_one() [L958] __SELECTED_FEATURE_stopCommand = select_one() [L959] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L959] RET, EXPR select_one() [L959] __SELECTED_FEATURE_startCommand = select_one() [L493] RET select_features() [L494] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = __SELECTED_FEATURE_base [L977] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp) [L542] CALL waterRise() [L1045] COND TRUE waterLevel < 2 [L1046] waterLevel = waterLevel + 1 [L542] RET waterRise() [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L570] tmp___1 = __VERIFIER_nondet_int() [L572] COND TRUE \read(tmp___1) [L573] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L575] CALL stopSystem() [L917] COND FALSE !(\read(pumpRunning)) [L924] systemActive = 0 [L575] RET stopSystem() [L585] CALL timeShift() [L613] COND FALSE !(\read(pumpRunning)) [L620] COND FALSE !(\read(systemActive)) [L628] CALL __utac_acc__Specification3_spec__1() [L985] int tmp ; [L986] int tmp___0 ; [L987] int tmp___1 ; [L991] CALL, EXPR isMethaneLevelCritical() [L1066] int retValue_acc ; [L1069] retValue_acc = methaneLevelCritical [L1070] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L997] CALL, EXPR getWaterLevel() [L1098] int retValue_acc ; [L1101] retValue_acc = waterLevel [L1102] return (retValue_acc); [L997] RET, EXPR getWaterLevel() [L997] tmp___0 = getWaterLevel() [L999] COND TRUE tmp___0 == 2 [L1001] CALL, EXPR isPumpRunning() [L831] int retValue_acc ; [L834] retValue_acc = pumpRunning [L835] return (retValue_acc); [L1001] RET, EXPR isPumpRunning() [L1001] tmp___1 = isPumpRunning() [L1003] COND FALSE !(\read(tmp___1)) [L1007] CALL __automaton_fail() [L1022] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 301 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.4s, OverallIterations: 6, TraceHistogramMax: 6, AutomataDifference: 22.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 846 SDtfs, 3115 SDslu, 268 SDs, 0 SdLazy, 4702 SolverSat, 2598 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1024occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 361 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 555 NumberOfCodeBlocks, 555 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 167384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 225/225 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...