/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_spec3_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:50:16,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:50:16,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:50:16,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:50:16,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:50:16,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:50:16,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:50:16,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:50:16,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:50:16,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:50:16,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:50:16,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:50:16,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:50:16,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:50:16,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:50:16,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:50:16,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:50:16,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:50:16,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:50:16,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:50:16,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:50:16,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:50:16,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:50:16,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:50:16,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:50:16,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:50:16,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:50:16,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:50:16,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:50:16,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:50:16,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:50:16,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:50:16,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:50:16,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:50:16,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:50:16,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:50:16,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:50:16,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:50:16,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:50:16,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:50:16,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:50:16,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 20:50:16,617 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:50:16,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:50:16,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:50:16,620 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:50:16,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:50:16,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:50:16,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:50:16,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:50:16,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:50:16,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:50:16,622 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:50:16,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:50:16,623 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:50:16,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:50:16,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:50:16,624 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:50:16,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:50:16,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:50:16,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:50:16,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:50:16,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:50:16,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:50:16,625 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 [2020-09-04 20:50:17,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:50:17,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:50:17,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:50:17,076 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:50:17,076 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:50:17,077 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-04 20:50:17,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/883149113/f9a6fc5a45f74c7493218af23300ee68/FLAG6ff2af8bf [2020-09-04 20:50:17,753 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:50:17,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-04 20:50:17,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/883149113/f9a6fc5a45f74c7493218af23300ee68/FLAG6ff2af8bf [2020-09-04 20:50:18,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/883149113/f9a6fc5a45f74c7493218af23300ee68 [2020-09-04 20:50:18,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:50:18,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:50:18,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:50:18,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:50:18,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:50:18,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:50:18" (1/1) ... [2020-09-04 20:50:18,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18, skipping insertion in model container [2020-09-04 20:50:18,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:50:18" (1/1) ... [2020-09-04 20:50:18,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:50:18,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:50:18,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:50:18,509 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:50:18,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:50:18,743 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:50:18,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18 WrapperNode [2020-09-04 20:50:18,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:50:18,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:50:18,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:50:18,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:50:18,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18" (1/1) ... [2020-09-04 20:50:18,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18" (1/1) ... [2020-09-04 20:50:18,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18" (1/1) ... [2020-09-04 20:50:18,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18" (1/1) ... [2020-09-04 20:50:18,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18" (1/1) ... [2020-09-04 20:50:18,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18" (1/1) ... [2020-09-04 20:50:18,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18" (1/1) ... [2020-09-04 20:50:18,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:50:18,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:50:18,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:50:18,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:50:18,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:50:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:50:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:50:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:50:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:50:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:50:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:50:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:50:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:50:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:50:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:50:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:50:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:50:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:50:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:50:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:50:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:50:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:50:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:50:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:50:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:50:18,942 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:50:18,942 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:50:18,942 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:50:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-04 20:50:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:50:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:50:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:50:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:50:18,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:50:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 20:50:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 20:50:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:50:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:50:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:50:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:50:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:50:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:50:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:50:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 20:50:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:50:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:50:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:50:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:50:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:50:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:50:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:50:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:50:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:50:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:50:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:50:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:50:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:50:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:50:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:50:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:50:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:50:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:50:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:50:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:50:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:50:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:50:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:50:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:50:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:50:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:50:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:50:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:50:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:50:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:50:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:50:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:50:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:50:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:50:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:50:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:50:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:50:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:50:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:50:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:50:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:50:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 20:50:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:50:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:50:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 20:50:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:50:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:50:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 20:50:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-04 20:50:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:50:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:50:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:50:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:50:20,160 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:50:20,160 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:50:20,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:50:20 BoogieIcfgContainer [2020-09-04 20:50:20,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:50:20,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:50:20,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:50:20,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:50:20,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:50:18" (1/3) ... [2020-09-04 20:50:20,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@352d9eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:50:20, skipping insertion in model container [2020-09-04 20:50:20,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:18" (2/3) ... [2020-09-04 20:50:20,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@352d9eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:50:20, skipping insertion in model container [2020-09-04 20:50:20,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:50:20" (3/3) ... [2020-09-04 20:50:20,178 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-09-04 20:50:20,192 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:50:20,204 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:50:20,230 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:50:20,264 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:50:20,264 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:50:20,264 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:50:20,265 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:50:20,265 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:50:20,265 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:50:20,265 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:50:20,265 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:50:20,292 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-04 20:50:20,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:50:20,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:20,319 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] [2020-09-04 20:50:20,319 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:20,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:20,328 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-09-04 20:50:20,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:20,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311461313] [2020-09-04 20:50:20,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:21,151 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:21,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:21,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:21,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:21,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:21,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:21,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:50:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:21,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:50:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:21,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:50:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:21,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:21,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311461313] [2020-09-04 20:50:21,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:21,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:50:21,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037542715] [2020-09-04 20:50:21,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:50:21,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:21,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:50:21,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:50:21,395 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2020-09-04 20:50:22,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:22,758 INFO L93 Difference]: Finished difference Result 497 states and 588 transitions. [2020-09-04 20:50:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:50:22,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:50:22,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:22,781 INFO L225 Difference]: With dead ends: 497 [2020-09-04 20:50:22,781 INFO L226 Difference]: Without dead ends: 307 [2020-09-04 20:50:22,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:50:22,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-04 20:50:22,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264. [2020-09-04 20:50:22,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-04 20:50:22,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-09-04 20:50:22,920 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 153 [2020-09-04 20:50:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:22,921 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-09-04 20:50:22,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:50:22,921 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-09-04 20:50:22,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:50:22,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:22,926 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] [2020-09-04 20:50:22,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:50:22,927 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:22,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:22,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1698755128, now seen corresponding path program 1 times [2020-09-04 20:50:22,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:22,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036583550] [2020-09-04 20:50:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:23,355 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:23,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:23,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:23,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:23,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:23,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:23,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:50:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:23,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:50:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:23,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:50:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:23,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:23,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036583550] [2020-09-04 20:50:23,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:23,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:50:23,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586211688] [2020-09-04 20:50:23,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:50:23,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:23,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:50:23,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:50:23,471 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 4 states. [2020-09-04 20:50:24,067 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:50:25,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:25,020 INFO L93 Difference]: Finished difference Result 405 states and 453 transitions. [2020-09-04 20:50:25,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:50:25,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:50:25,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:25,025 INFO L225 Difference]: With dead ends: 405 [2020-09-04 20:50:25,026 INFO L226 Difference]: Without dead ends: 290 [2020-09-04 20:50:25,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:50:25,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-04 20:50:25,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 254. [2020-09-04 20:50:25,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-04 20:50:25,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 273 transitions. [2020-09-04 20:50:25,166 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 273 transitions. Word has length 154 [2020-09-04 20:50:25,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:25,168 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 273 transitions. [2020-09-04 20:50:25,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:50:25,168 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 273 transitions. [2020-09-04 20:50:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-04 20:50:25,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:25,172 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] [2020-09-04 20:50:25,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:50:25,172 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:25,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:25,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1272338923, now seen corresponding path program 1 times [2020-09-04 20:50:25,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:25,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128645946] [2020-09-04 20:50:25,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,647 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:25,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:50:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:50:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-04 20:50:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:25,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128645946] [2020-09-04 20:50:25,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:25,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:50:25,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992875099] [2020-09-04 20:50:25,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:50:25,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:25,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:50:25,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:50:25,815 INFO L87 Difference]: Start difference. First operand 254 states and 273 transitions. Second operand 9 states. [2020-09-04 20:50:26,345 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:26,707 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:50:27,021 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:50:27,325 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:27,656 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:50:27,945 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:28,937 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:50:31,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:31,236 INFO L93 Difference]: Finished difference Result 684 states and 780 transitions. [2020-09-04 20:50:31,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:50:31,238 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-04 20:50:31,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:31,242 INFO L225 Difference]: With dead ends: 684 [2020-09-04 20:50:31,242 INFO L226 Difference]: Without dead ends: 540 [2020-09-04 20:50:31,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-04 20:50:31,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-09-04 20:50:31,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 461. [2020-09-04 20:50:31,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-09-04 20:50:31,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 510 transitions. [2020-09-04 20:50:31,431 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 510 transitions. Word has length 163 [2020-09-04 20:50:31,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:31,432 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 510 transitions. [2020-09-04 20:50:31,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:50:31,432 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 510 transitions. [2020-09-04 20:50:31,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-04 20:50:31,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:31,437 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] [2020-09-04 20:50:31,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:50:31,437 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:31,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:31,438 INFO L82 PathProgramCache]: Analyzing trace with hash 834967554, now seen corresponding path program 1 times [2020-09-04 20:50:31,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:31,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651301623] [2020-09-04 20:50:31,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,868 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:31,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:31,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-04 20:50:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:32,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:50:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:32,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-04 20:50:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:32,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-04 20:50:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:32,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-04 20:50:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:32,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:32,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651301623] [2020-09-04 20:50:32,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:32,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 20:50:32,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711497703] [2020-09-04 20:50:32,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 20:50:32,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:32,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 20:50:32,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-04 20:50:32,147 INFO L87 Difference]: Start difference. First operand 461 states and 510 transitions. Second operand 6 states. [2020-09-04 20:50:32,638 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:34,390 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:50:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:35,078 INFO L93 Difference]: Finished difference Result 1166 states and 1357 transitions. [2020-09-04 20:50:35,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 20:50:35,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-09-04 20:50:35,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:35,087 INFO L225 Difference]: With dead ends: 1166 [2020-09-04 20:50:35,087 INFO L226 Difference]: Without dead ends: 815 [2020-09-04 20:50:35,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-04 20:50:35,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-09-04 20:50:35,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 699. [2020-09-04 20:50:35,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-09-04 20:50:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 772 transitions. [2020-09-04 20:50:35,367 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 772 transitions. Word has length 171 [2020-09-04 20:50:35,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:35,367 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 772 transitions. [2020-09-04 20:50:35,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 20:50:35,368 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 772 transitions. [2020-09-04 20:50:35,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 20:50:35,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:35,370 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] [2020-09-04 20:50:35,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:50:35,370 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:35,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:35,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1418606569, now seen corresponding path program 1 times [2020-09-04 20:50:35,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:35,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551914472] [2020-09-04 20:50:35,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:35,782 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:35,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:35,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:35,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:35,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:35,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:35,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:50:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:35,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 20:50:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:35,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 20:50:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:35,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 20:50:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:35,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:35,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551914472] [2020-09-04 20:50:35,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:35,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:50:36,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785173699] [2020-09-04 20:50:36,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:50:36,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:36,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:50:36,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:50:36,002 INFO L87 Difference]: Start difference. First operand 699 states and 772 transitions. Second operand 9 states. [2020-09-04 20:50:36,657 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:38,191 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:38,514 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:50:38,879 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:39,227 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:39,525 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:50:39,858 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:40,149 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:41,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:41,632 INFO L93 Difference]: Finished difference Result 1812 states and 2101 transitions. [2020-09-04 20:50:41,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:50:41,632 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 20:50:41,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:41,641 INFO L225 Difference]: With dead ends: 1812 [2020-09-04 20:50:41,641 INFO L226 Difference]: Without dead ends: 1223 [2020-09-04 20:50:41,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 20:50:41,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2020-09-04 20:50:42,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1140. [2020-09-04 20:50:42,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1140 states. [2020-09-04 20:50:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1275 transitions. [2020-09-04 20:50:42,155 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1275 transitions. Word has length 172 [2020-09-04 20:50:42,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:42,155 INFO L479 AbstractCegarLoop]: Abstraction has 1140 states and 1275 transitions. [2020-09-04 20:50:42,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:50:42,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1275 transitions. [2020-09-04 20:50:42,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 20:50:42,159 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:42,159 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] [2020-09-04 20:50:42,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:50:42,160 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:42,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:42,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-09-04 20:50:42,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:42,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025639883] [2020-09-04 20:50:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:50:42,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:50:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:50:42,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:50:42,624 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:50:42,624 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:50:42,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:50:42,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:50:42 BoogieIcfgContainer [2020-09-04 20:50:42,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:50:42,860 INFO L168 Benchmark]: Toolchain (without parser) took 24829.56 ms. Allocated memory was 145.2 MB in the beginning and 644.9 MB in the end (delta: 499.6 MB). Free memory was 101.8 MB in the beginning and 158.6 MB in the end (delta: -56.8 MB). Peak memory consumption was 442.9 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:42,861 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 20:50:42,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.97 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 101.4 MB in the beginning and 173.5 MB in the end (delta: -72.0 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:42,862 INFO L168 Benchmark]: Boogie Preprocessor took 106.63 ms. Allocated memory is still 203.9 MB. Free memory was 173.5 MB in the beginning and 169.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:42,863 INFO L168 Benchmark]: RCFGBuilder took 1316.46 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 169.2 MB in the beginning and 179.3 MB in the end (delta: -10.1 MB). Peak memory consumption was 87.0 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:42,864 INFO L168 Benchmark]: TraceAbstraction took 22688.25 ms. Allocated memory was 235.4 MB in the beginning and 644.9 MB in the end (delta: 409.5 MB). Free memory was 177.8 MB in the beginning and 158.6 MB in the end (delta: 19.2 MB). Peak memory consumption was 428.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:42,868 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 145.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 709.97 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 101.4 MB in the beginning and 173.5 MB in the end (delta: -72.0 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.63 ms. Allocated memory is still 203.9 MB. Free memory was 173.5 MB in the beginning and 169.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1316.46 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 169.2 MB in the beginning and 179.3 MB in the end (delta: -10.1 MB). Peak memory consumption was 87.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22688.25 ms. Allocated memory was 235.4 MB in the beginning and 644.9 MB in the end (delta: 409.5 MB). Free memory was 177.8 MB in the beginning and 158.6 MB in the end (delta: 19.2 MB). Peak memory consumption was 428.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={176:163}, methaneLevelCritical=148, pumpRunning=141, systemActive=140, waterLevel=142] [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=141, systemActive=140, waterLevel=142] [L597] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=148, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=140, waterLevel=142] [L598] int systemActive = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=142] [L849] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=1] [L850] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=148, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] 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] [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L582] 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] [L585] 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] [L586] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() 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] [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] 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] [L784] 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] [L785] 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] [L786] 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] [L787] 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] [L790] 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] [L792] 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] [L794] 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] [L800] 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] [L802] 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] [L804] 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] [L867] 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] [L868] 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] [L804] 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] [L810] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L812] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L820] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L822] COND FALSE !(\read(tmp___2)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L826] tmp___1 = __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=0, tmp___1=1, tmp___2=0, waterLevel=2] [L828] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L830] CALL stopSystem() 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] [L770] COND FALSE !(\read(pumpRunning)) 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] [L777] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L830] RET stopSystem() 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=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L837] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L604] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L611] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L619] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L158] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L159] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L163] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L888] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L891] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L892] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L163] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L163] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L165] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L169] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L920] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L923] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L924] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L169] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L169] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L171] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L173] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L703] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L706] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L707] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L173] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L173] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L175] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L179] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L148] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1258 SDtfs, 1740 SDslu, 1621 SDs, 0 SdLazy, 3616 SolverSat, 547 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1140occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 357 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 990 NumberOfCodeBlocks, 990 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 808 ConstructedInterpolants, 0 QuantifiedInterpolants, 336544 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...