/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 16:25:19,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 16:25:19,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 16:25:19,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 16:25:19,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 16:25:19,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 16:25:19,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 16:25:19,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 16:25:19,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 16:25:19,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 16:25:19,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 16:25:19,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 16:25:19,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 16:25:19,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 16:25:19,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 16:25:19,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 16:25:19,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 16:25:19,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 16:25:19,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 16:25:19,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 16:25:19,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 16:25:19,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 16:25:19,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 16:25:19,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 16:25:19,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 16:25:19,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 16:25:19,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 16:25:19,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 16:25:19,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 16:25:19,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 16:25:19,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 16:25:19,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 16:25:19,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 16:25:19,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 16:25:19,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 16:25:19,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 16:25:19,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 16:25:19,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 16:25:19,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 16:25:19,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 16:25:19,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 16:25:19,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 16:25:19,472 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 16:25:19,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 16:25:19,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 16:25:19,476 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 16:25:19,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 16:25:19,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 16:25:19,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 16:25:19,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 16:25:19,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 16:25:19,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 16:25:19,477 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 16:25:19,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 16:25:19,478 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 16:25:19,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 16:25:19,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 16:25:19,479 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 16:25:19,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 16:25:19,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 16:25:19,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 16:25:19,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 16:25:19,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 16:25:19,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 16:25:19,481 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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: Use separate solver for trace checks -> true [2020-07-17 16:25:19,768 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 16:25:19,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 16:25:19,789 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 16:25:19,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 16:25:19,790 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 16:25:19,791 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-07-17 16:25:19,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d83ded2/a8640a71135546d088ae4695a4834a2e/FLAG38b9567b2 [2020-07-17 16:25:20,448 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 16:25:20,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-07-17 16:25:20,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d83ded2/a8640a71135546d088ae4695a4834a2e/FLAG38b9567b2 [2020-07-17 16:25:20,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d83ded2/a8640a71135546d088ae4695a4834a2e [2020-07-17 16:25:20,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 16:25:20,771 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 16:25:20,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 16:25:20,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 16:25:20,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 16:25:20,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:25:20" (1/1) ... [2020-07-17 16:25:20,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502cf0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:20, skipping insertion in model container [2020-07-17 16:25:20,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:25:20" (1/1) ... [2020-07-17 16:25:20,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 16:25:20,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 16:25:21,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:25:21,330 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 16:25:21,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:25:21,483 INFO L208 MainTranslator]: Completed translation [2020-07-17 16:25:21,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:21 WrapperNode [2020-07-17 16:25:21,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 16:25:21,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 16:25:21,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 16:25:21,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 16:25:21,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:21" (1/1) ... [2020-07-17 16:25:21,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:21" (1/1) ... [2020-07-17 16:25:21,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:21" (1/1) ... [2020-07-17 16:25:21,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:21" (1/1) ... [2020-07-17 16:25:21,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:21" (1/1) ... [2020-07-17 16:25:21,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:21" (1/1) ... [2020-07-17 16:25:21,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:21" (1/1) ... [2020-07-17 16:25:21,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 16:25:21,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 16:25:21,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 16:25:21,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 16:25:21,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:21" (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 [2020-07-17 16:25:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 16:25:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 16:25:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 16:25:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 16:25:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 16:25:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 16:25:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 16:25:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 16:25:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 16:25:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 16:25:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-17 16:25:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 16:25:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 16:25:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 16:25:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 16:25:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 16:25:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 16:25:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 16:25:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 16:25:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 16:25:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 16:25:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-17 16:25:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 16:25:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 16:25:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 16:25:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 16:25:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 16:25:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 16:25:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 16:25:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 16:25:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 16:25:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-17 16:25:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 16:25:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 16:25:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 16:25:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 16:25:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 16:25:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 16:25:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 16:25:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 16:25:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 16:25:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 16:25:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 16:25:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 16:25:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 16:25:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 16:25:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 16:25:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 16:25:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 16:25:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 16:25:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 16:25:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 16:25:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-17 16:25:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 16:25:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 16:25:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 16:25:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 16:25:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 16:25:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 16:25:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 16:25:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 16:25:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-17 16:25:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 16:25:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 16:25:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 16:25:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-17 16:25:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-17 16:25:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 16:25:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 16:25:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 16:25:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 16:25:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 16:25:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 16:25:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 16:25:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 16:25:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 16:25:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 16:25:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 16:25:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 16:25:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 16:25:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 16:25:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 16:25:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 16:25:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 16:25:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 16:25:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 16:25:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 16:25:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 16:25:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 16:25:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 16:25:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 16:25:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 16:25:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 16:25:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 16:25:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 16:25:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 16:25:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 16:25:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 16:25:22,953 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 16:25:22,953 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 16:25:22,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:25:22 BoogieIcfgContainer [2020-07-17 16:25:22,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 16:25:22,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 16:25:22,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 16:25:22,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 16:25:22,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:25:20" (1/3) ... [2020-07-17 16:25:22,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e22c6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:25:22, skipping insertion in model container [2020-07-17 16:25:22,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:25:21" (2/3) ... [2020-07-17 16:25:22,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e22c6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:25:22, skipping insertion in model container [2020-07-17 16:25:22,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:25:22" (3/3) ... [2020-07-17 16:25:22,968 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2020-07-17 16:25:22,978 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 16:25:22,987 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 16:25:23,001 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 16:25:23,023 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 16:25:23,023 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 16:25:23,023 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 16:25:23,023 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 16:25:23,024 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 16:25:23,024 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 16:25:23,024 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 16:25:23,024 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 16:25:23,045 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states. [2020-07-17 16:25:23,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-17 16:25:23,066 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:23,067 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:23,068 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:23,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:23,074 INFO L82 PathProgramCache]: Analyzing trace with hash 254159831, now seen corresponding path program 1 times [2020-07-17 16:25:23,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:23,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91161315] [2020-07-17 16:25:23,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:23,771 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:24,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91161315] [2020-07-17 16:25:24,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:24,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 16:25:24,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914888433] [2020-07-17 16:25:24,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 16:25:24,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:24,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 16:25:24,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 16:25:24,050 INFO L87 Difference]: Start difference. First operand 328 states. Second operand 3 states. [2020-07-17 16:25:25,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:25,465 INFO L93 Difference]: Finished difference Result 512 states and 609 transitions. [2020-07-17 16:25:25,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 16:25:25,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-17 16:25:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:25,484 INFO L225 Difference]: With dead ends: 512 [2020-07-17 16:25:25,485 INFO L226 Difference]: Without dead ends: 315 [2020-07-17 16:25:25,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 16:25:25,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-07-17 16:25:25,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-07-17 16:25:25,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-07-17 16:25:25,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 295 transitions. [2020-07-17 16:25:25,673 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 295 transitions. Word has length 142 [2020-07-17 16:25:25,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:25,674 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 295 transitions. [2020-07-17 16:25:25,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 16:25:25,675 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 295 transitions. [2020-07-17 16:25:25,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-17 16:25:25,691 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:25,691 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:25,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 16:25:25,692 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:25,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:25,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1230709371, now seen corresponding path program 1 times [2020-07-17 16:25:25,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:25,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419554151] [2020-07-17 16:25:25,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,103 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:26,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:26,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419554151] [2020-07-17 16:25:26,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:26,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 16:25:26,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187096612] [2020-07-17 16:25:26,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 16:25:26,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:26,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 16:25:26,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 16:25:26,172 INFO L87 Difference]: Start difference. First operand 271 states and 295 transitions. Second operand 4 states. [2020-07-17 16:25:26,813 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:27,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:27,875 INFO L93 Difference]: Finished difference Result 419 states and 472 transitions. [2020-07-17 16:25:27,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 16:25:27,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-07-17 16:25:27,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:27,881 INFO L225 Difference]: With dead ends: 419 [2020-07-17 16:25:27,881 INFO L226 Difference]: Without dead ends: 298 [2020-07-17 16:25:27,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 16:25:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-07-17 16:25:27,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-07-17 16:25:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-07-17 16:25:27,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions. [2020-07-17 16:25:27,954 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143 [2020-07-17 16:25:27,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:27,954 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 282 transitions. [2020-07-17 16:25:27,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 16:25:27,955 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions. [2020-07-17 16:25:27,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-17 16:25:27,957 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:27,957 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:27,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 16:25:27,958 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:27,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:27,958 INFO L82 PathProgramCache]: Analyzing trace with hash -11881279, now seen corresponding path program 1 times [2020-07-17 16:25:27,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:27,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657798683] [2020-07-17 16:25:27,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:28,277 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:28,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657798683] [2020-07-17 16:25:28,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:28,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:25:28,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991080920] [2020-07-17 16:25:28,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:25:28,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:28,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:25:28,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:25:28,443 INFO L87 Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 10 states. [2020-07-17 16:25:29,096 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:29,553 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:29,931 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:25:30,173 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:30,408 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:30,628 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:31,555 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:34,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:34,024 INFO L93 Difference]: Finished difference Result 718 states and 836 transitions. [2020-07-17 16:25:34,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 16:25:34,024 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-07-17 16:25:34,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:34,031 INFO L225 Difference]: With dead ends: 718 [2020-07-17 16:25:34,031 INFO L226 Difference]: Without dead ends: 567 [2020-07-17 16:25:34,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:25:34,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-07-17 16:25:34,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 472. [2020-07-17 16:25:34,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-07-17 16:25:34,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 528 transitions. [2020-07-17 16:25:34,163 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 528 transitions. Word has length 156 [2020-07-17 16:25:34,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:34,163 INFO L479 AbstractCegarLoop]: Abstraction has 472 states and 528 transitions. [2020-07-17 16:25:34,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:25:34,164 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 528 transitions. [2020-07-17 16:25:34,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-17 16:25:34,167 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:34,167 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:34,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 16:25:34,167 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:34,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:34,168 INFO L82 PathProgramCache]: Analyzing trace with hash -409466612, now seen corresponding path program 1 times [2020-07-17 16:25:34,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:34,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140867914] [2020-07-17 16:25:34,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:34,514 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:34,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:34,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140867914] [2020-07-17 16:25:34,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:34,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:25:34,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622330626] [2020-07-17 16:25:34,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:25:34,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:34,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:25:34,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:25:34,661 INFO L87 Difference]: Start difference. First operand 472 states and 528 transitions. Second operand 9 states. [2020-07-17 16:25:35,159 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:36,421 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:36,719 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:37,059 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:37,349 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:37,619 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:37,869 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:38,138 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:38,644 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:39,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:39,724 INFO L93 Difference]: Finished difference Result 1314 states and 1572 transitions. [2020-07-17 16:25:39,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 16:25:39,724 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-07-17 16:25:39,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:39,731 INFO L225 Difference]: With dead ends: 1314 [2020-07-17 16:25:39,732 INFO L226 Difference]: Without dead ends: 952 [2020-07-17 16:25:39,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:25:39,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2020-07-17 16:25:40,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 795. [2020-07-17 16:25:40,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2020-07-17 16:25:40,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 902 transitions. [2020-07-17 16:25:40,031 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 902 transitions. Word has length 161 [2020-07-17 16:25:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:40,031 INFO L479 AbstractCegarLoop]: Abstraction has 795 states and 902 transitions. [2020-07-17 16:25:40,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:25:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 902 transitions. [2020-07-17 16:25:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-17 16:25:40,035 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:40,035 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:40,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 16:25:40,036 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:40,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:40,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1234625458, now seen corresponding path program 1 times [2020-07-17 16:25:40,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:40,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457613444] [2020-07-17 16:25:40,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:40,298 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:40,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:40,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457613444] [2020-07-17 16:25:40,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:40,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:25:40,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081477329] [2020-07-17 16:25:40,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:25:40,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:40,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:25:40,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:25:40,429 INFO L87 Difference]: Start difference. First operand 795 states and 902 transitions. Second operand 10 states. [2020-07-17 16:25:40,874 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:42,121 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:42,352 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:42,595 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:42,855 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:25:43,132 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:43,921 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:44,153 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:44,486 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:45,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:45,550 INFO L93 Difference]: Finished difference Result 2058 states and 2533 transitions. [2020-07-17 16:25:45,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-17 16:25:45,551 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-07-17 16:25:45,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:45,562 INFO L225 Difference]: With dead ends: 2058 [2020-07-17 16:25:45,562 INFO L226 Difference]: Without dead ends: 1373 [2020-07-17 16:25:45,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-07-17 16:25:45,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-07-17 16:25:45,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1105. [2020-07-17 16:25:45,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1105 states. [2020-07-17 16:25:45,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1273 transitions. [2020-07-17 16:25:45,908 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1273 transitions. Word has length 166 [2020-07-17 16:25:45,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:45,909 INFO L479 AbstractCegarLoop]: Abstraction has 1105 states and 1273 transitions. [2020-07-17 16:25:45,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:25:45,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1273 transitions. [2020-07-17 16:25:45,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-17 16:25:45,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:45,913 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:45,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 16:25:45,914 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:45,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:45,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1793051015, now seen corresponding path program 1 times [2020-07-17 16:25:45,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:45,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691367399] [2020-07-17 16:25:45,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,185 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:46,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:46,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691367399] [2020-07-17 16:25:46,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:46,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-17 16:25:46,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963593737] [2020-07-17 16:25:46,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 16:25:46,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:46,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 16:25:46,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-17 16:25:46,416 INFO L87 Difference]: Start difference. First operand 1105 states and 1273 transitions. Second operand 11 states. [2020-07-17 16:25:47,784 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:48,074 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:25:48,381 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:25:48,646 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:48,932 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:49,167 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:50,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:50,858 INFO L93 Difference]: Finished difference Result 2717 states and 3403 transitions. [2020-07-17 16:25:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 16:25:50,859 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-07-17 16:25:50,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:50,871 INFO L225 Difference]: With dead ends: 2717 [2020-07-17 16:25:50,871 INFO L226 Difference]: Without dead ends: 1722 [2020-07-17 16:25:50,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-07-17 16:25:50,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2020-07-17 16:25:51,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1143. [2020-07-17 16:25:51,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1143 states. [2020-07-17 16:25:51,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1313 transitions. [2020-07-17 16:25:51,195 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1313 transitions. Word has length 199 [2020-07-17 16:25:51,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:51,196 INFO L479 AbstractCegarLoop]: Abstraction has 1143 states and 1313 transitions. [2020-07-17 16:25:51,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 16:25:51,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1313 transitions. [2020-07-17 16:25:51,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-17 16:25:51,201 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:51,201 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:51,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 16:25:51,202 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:51,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:51,202 INFO L82 PathProgramCache]: Analyzing trace with hash 819180839, now seen corresponding path program 1 times [2020-07-17 16:25:51,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:51,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834874761] [2020-07-17 16:25:51,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,520 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:51,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834874761] [2020-07-17 16:25:51,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:51,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-17 16:25:51,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385426492] [2020-07-17 16:25:51,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-17 16:25:51,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:51,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-17 16:25:51,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-07-17 16:25:51,738 INFO L87 Difference]: Start difference. First operand 1143 states and 1313 transitions. Second operand 14 states. [2020-07-17 16:25:52,286 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:52,519 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:25:52,759 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:52,990 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:53,207 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:54,170 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:54,434 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:54,711 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:54,990 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:55,224 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:57,310 INFO L93 Difference]: Finished difference Result 2799 states and 3554 transitions. [2020-07-17 16:25:57,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-17 16:25:57,310 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 199 [2020-07-17 16:25:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:57,321 INFO L225 Difference]: With dead ends: 2799 [2020-07-17 16:25:57,321 INFO L226 Difference]: Without dead ends: 1766 [2020-07-17 16:25:57,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-07-17 16:25:57,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2020-07-17 16:25:57,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1167. [2020-07-17 16:25:57,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2020-07-17 16:25:57,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1337 transitions. [2020-07-17 16:25:57,894 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1337 transitions. Word has length 199 [2020-07-17 16:25:57,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:57,895 INFO L479 AbstractCegarLoop]: Abstraction has 1167 states and 1337 transitions. [2020-07-17 16:25:57,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-17 16:25:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1337 transitions. [2020-07-17 16:25:57,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-17 16:25:57,899 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:57,899 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:57,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 16:25:57,899 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:57,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:57,900 INFO L82 PathProgramCache]: Analyzing trace with hash -821113142, now seen corresponding path program 1 times [2020-07-17 16:25:57,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:57,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [990523611] [2020-07-17 16:25:57,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,172 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:58,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:58,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [990523611] [2020-07-17 16:25:58,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:58,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 16:25:58,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880435269] [2020-07-17 16:25:58,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 16:25:58,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:58,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 16:25:58,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-17 16:25:58,335 INFO L87 Difference]: Start difference. First operand 1167 states and 1337 transitions. Second operand 8 states. [2020-07-17 16:25:58,803 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:59,329 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:26:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:26:03,627 INFO L93 Difference]: Finished difference Result 4329 states and 5547 transitions. [2020-07-17 16:26:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-17 16:26:03,627 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2020-07-17 16:26:03,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:26:03,647 INFO L225 Difference]: With dead ends: 4329 [2020-07-17 16:26:03,648 INFO L226 Difference]: Without dead ends: 3272 [2020-07-17 16:26:03,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-07-17 16:26:03,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3272 states. [2020-07-17 16:26:04,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3272 to 2347. [2020-07-17 16:26:04,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2347 states. [2020-07-17 16:26:04,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 2717 transitions. [2020-07-17 16:26:04,596 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 2717 transitions. Word has length 199 [2020-07-17 16:26:04,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:26:04,596 INFO L479 AbstractCegarLoop]: Abstraction has 2347 states and 2717 transitions. [2020-07-17 16:26:04,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 16:26:04,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 2717 transitions. [2020-07-17 16:26:04,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-17 16:26:04,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:26:04,601 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:26:04,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 16:26:04,601 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:26:04,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:26:04,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1861424498, now seen corresponding path program 1 times [2020-07-17 16:26:04,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:26:04,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124293738] [2020-07-17 16:26:04,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:26:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:26:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:26:04,952 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 16:26:04,953 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 16:26:04,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 16:26:05,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 04:26:05 BoogieIcfgContainer [2020-07-17 16:26:05,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 16:26:05,189 INFO L168 Benchmark]: Toolchain (without parser) took 44418.59 ms. Allocated memory was 146.8 MB in the beginning and 929.6 MB in the end (delta: 782.8 MB). Free memory was 103.8 MB in the beginning and 125.1 MB in the end (delta: -21.3 MB). Peak memory consumption was 761.4 MB. Max. memory is 7.1 GB. [2020-07-17 16:26:05,189 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 16:26:05,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.55 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 103.4 MB in the beginning and 171.7 MB in the end (delta: -68.3 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-07-17 16:26:05,191 INFO L168 Benchmark]: Boogie Preprocessor took 103.52 ms. Allocated memory is still 205.0 MB. Free memory was 171.7 MB in the beginning and 167.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-07-17 16:26:05,192 INFO L168 Benchmark]: RCFGBuilder took 1372.00 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 167.8 MB in the beginning and 172.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. [2020-07-17 16:26:05,192 INFO L168 Benchmark]: TraceAbstraction took 42225.58 ms. Allocated memory was 237.0 MB in the beginning and 929.6 MB in the end (delta: 692.6 MB). Free memory was 170.6 MB in the beginning and 125.1 MB in the end (delta: 45.5 MB). Peak memory consumption was 738.1 MB. Max. memory is 7.1 GB. [2020-07-17 16:26:05,196 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 711.55 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 103.4 MB in the beginning and 171.7 MB in the end (delta: -68.3 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.52 ms. Allocated memory is still 205.0 MB. Free memory was 171.7 MB in the beginning and 167.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1372.00 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 167.8 MB in the beginning and 172.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42225.58 ms. Allocated memory was 237.0 MB in the beginning and 929.6 MB in the end (delta: 692.6 MB). Free memory was 170.6 MB in the beginning and 125.1 MB in the end (delta: 45.5 MB). Peak memory consumption was 738.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 383]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=167, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=140, cleanupTimeShifts=167, head={176:164}, methaneLevelCritical=142, pumpRunning=135, systemActive=134, waterLevel=1] [L49] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=167, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=140, cleanupTimeShifts=167, head={176:164}, methaneLevelCritical=0, pumpRunning=135, systemActive=134, waterLevel=1] [L158] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=167, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=140, cleanupTimeShifts=167, head={176:164}, methaneLevelCritical=0, pumpRunning=0, systemActive=134, waterLevel=1] [L159] int systemActive = 1; VAL [\old(cleanupTimeShifts)=167, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=140, cleanupTimeShifts=167, head={176:164}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L458] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=167, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=140, cleanupTimeShifts=4, head={176:164}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L752] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=167, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] int retValue_acc ; 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] [L535] 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] [L539] 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] [L540] 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] [L541] 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] [L975] int retValue_acc ; 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] [L978] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L979] 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] [L541] 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] [L541] tmp = 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, tmp=1, valid_product()=1, waterLevel=1] [L543] 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] [L545] 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] [L546] 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] [L525] 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] [L390] int splverifierCounter ; 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] [L391] 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] [L392] int tmp___0 ; 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] [L393] int tmp___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=1] [L394] int tmp___2 ; 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] [L397] 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] [L399] 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] [L401] 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] [L407] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L409] 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] [L411] 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] [L66] COND TRUE waterLevel < 2 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] [L67] 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] [L411] 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] [L417] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L419] 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] [L421] 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] [L78] COND FALSE !(\read(methaneLevelCritical)) 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] [L81] 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] [L421] 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] [L427] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L429] COND TRUE \read(tmp___2) 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___2=1, waterLevel=2] [L431] CALL startSystem() 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] [L374] systemActive = 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] [L431] RET startSystem() 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___2=1, waterLevel=2] [L446] 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] [L166] 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] [L173] 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] [L175] 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] [L221] 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] [L224] 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] [L239] 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] [L195] 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] [L198] 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] [L200] 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] [L318] 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] [L319] 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] [L320] 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] [L324] 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] [L128] 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] [L131] COND FALSE !(waterLevel < 2) 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] [L135] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L136] 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] [L324] 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] [L324] tmp = 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, tmp=0, waterLevel=2] [L326] COND FALSE !(\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=0, waterLevel=2] [L329] 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] [L331] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L332] 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] [L200] 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] [L200] tmp = 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, tmp=1, waterLevel=2] [L202] 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] [L204] 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] [L249] 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] [L204] 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] [L239] 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] [L175] 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] [L181] 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] [L558] int 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, waterLevel=2] [L559] 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] [L563] 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] [L87] int retValue_acc ; 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] [L90] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L91] 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] [L563] 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] [L563] tmp = 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, tmp=1, waterLevel=2] [L565] 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] [L567] 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] [L273] int retValue_acc ; 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] [L276] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L277] 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] [L567] 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] [L567] tmp___0 = 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, tmp___0=1, waterLevel=2] [L569] 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] [L571] 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] [L383] __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 42 procedures, 647 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 41.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 34.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2101 SDtfs, 4648 SDslu, 4292 SDs, 0 SdLazy, 9396 SolverSat, 1519 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 202 SyntacticMatches, 3 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 12.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2347occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 2704 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1569 NumberOfCodeBlocks, 1569 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1357 ConstructedInterpolants, 0 QuantifiedInterpolants, 579505 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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...