/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_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:49:03,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:49:03,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:49:03,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:49:03,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:49:03,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:49:03,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:49:03,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:49:03,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:49:03,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:49:03,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:49:03,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:49:03,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:49:03,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:49:03,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:49:03,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:49:03,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:49:03,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:49:03,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:49:03,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:49:03,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:49:03,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:49:03,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:49:03,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:49:03,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:49:03,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:49:03,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:49:03,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:49:03,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:49:03,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:49:03,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:49:03,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:49:03,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:49:03,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:49:03,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:49:03,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:49:03,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:49:03,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:49:03,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:49:03,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:49:03,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:49:03,153 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 20:49:03,170 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:49:03,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:49:03,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:49:03,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:49:03,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:49:03,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:49:03,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:49:03,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:49:03,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:49:03,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:49:03,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:49:03,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:49:03,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:49:03,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:49:03,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:49:03,177 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:49:03,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:49:03,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:49:03,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:49:03,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:49:03,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:49:03,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:49:03,178 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 20:49:03,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:49:03,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:49:03,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:49:03,640 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:49:03,643 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:49:03,644 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-09-04 20:49:03,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2fe4ff6e/a594e183c7e64dcc8515e41d0b116f2b/FLAGe6432dd5c [2020-09-04 20:49:04,306 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:49:04,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product23.cil.c [2020-09-04 20:49:04,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2fe4ff6e/a594e183c7e64dcc8515e41d0b116f2b/FLAGe6432dd5c [2020-09-04 20:49:04,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2fe4ff6e/a594e183c7e64dcc8515e41d0b116f2b [2020-09-04 20:49:04,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:49:04,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:49:04,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:49:04,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:49:04,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:49:04,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:49:04" (1/1) ... [2020-09-04 20:49:04,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:04, skipping insertion in model container [2020-09-04 20:49:04,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:49:04" (1/1) ... [2020-09-04 20:49:04,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:49:04,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:49:05,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:49:05,185 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:49:05,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:49:05,353 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:49:05,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:05 WrapperNode [2020-09-04 20:49:05,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:49:05,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:49:05,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:49:05,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:49:05,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:05" (1/1) ... [2020-09-04 20:49:05,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:05" (1/1) ... [2020-09-04 20:49:05,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:05" (1/1) ... [2020-09-04 20:49:05,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:05" (1/1) ... [2020-09-04 20:49:05,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:05" (1/1) ... [2020-09-04 20:49:05,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:05" (1/1) ... [2020-09-04 20:49:05,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:05" (1/1) ... [2020-09-04 20:49:05,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:49:05,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:49:05,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:49:05,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:49:05,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:05" (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 20:49:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:49:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:49:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:49:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:49:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:49:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:49:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:49:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:49:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:49:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 20:49:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:49:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:49:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:49:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 20:49:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:49:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:49:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:49:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:49:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:49:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:49:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 20:49:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 20:49:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:49:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:49:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:49:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:49:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:49:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:49:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:49:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:49:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:49:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:49:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:49:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:49:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:49:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:49:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:49:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:49:05,590 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:49:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:49:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:49:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:49:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:49:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:49:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:49:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:49:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:49:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:49:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 20:49:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:49:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:49:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:49:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:49:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:49:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:49:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:49:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:49:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 20:49:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:49:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:49:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 20:49:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 20:49:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:49:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:49:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:49:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:49:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:49:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:49:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:49:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:49:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:49:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:49:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:49:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:49:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:49:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:49:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:49:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:49:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:49:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:49:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:49:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:49:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:49:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:49:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:49:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:49:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:49:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:49:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:49:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:49:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:49:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:49:06,669 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:49:06,669 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:49:06,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:49:06 BoogieIcfgContainer [2020-09-04 20:49:06,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:49:06,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:49:06,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:49:06,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:49:06,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:49:04" (1/3) ... [2020-09-04 20:49:06,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea30081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:49:06, skipping insertion in model container [2020-09-04 20:49:06,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:05" (2/3) ... [2020-09-04 20:49:06,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea30081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:49:06, skipping insertion in model container [2020-09-04 20:49:06,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:49:06" (3/3) ... [2020-09-04 20:49:06,685 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2020-09-04 20:49:06,696 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:49:06,706 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:49:06,728 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:49:06,756 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:49:06,757 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:49:06,757 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:49:06,757 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:49:06,757 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:49:06,757 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:49:06,757 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:49:06,758 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:49:06,782 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-04 20:49:06,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:49:06,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:06,806 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 20:49:06,807 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:06,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:06,814 INFO L82 PathProgramCache]: Analyzing trace with hash -2023786864, now seen corresponding path program 1 times [2020-09-04 20:49:06,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:06,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174090002] [2020-09-04 20:49:06,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,580 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:07,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:49:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:49:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:49:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,792 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 20:49:07,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174090002] [2020-09-04 20:49:07,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:07,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:49:07,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790479707] [2020-09-04 20:49:07,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:49:07,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:07,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:49:07,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:49:07,835 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-09-04 20:49:09,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:09,329 INFO L93 Difference]: Finished difference Result 491 states and 589 transitions. [2020-09-04 20:49:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:49:09,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:49:09,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:09,367 INFO L225 Difference]: With dead ends: 491 [2020-09-04 20:49:09,368 INFO L226 Difference]: Without dead ends: 304 [2020-09-04 20:49:09,380 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 20:49:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-04 20:49:09,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 261. [2020-09-04 20:49:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-04 20:49:09,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 286 transitions. [2020-09-04 20:49:09,524 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 286 transitions. Word has length 153 [2020-09-04 20:49:09,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:09,525 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 286 transitions. [2020-09-04 20:49:09,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:49:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 286 transitions. [2020-09-04 20:49:09,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:49:09,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:09,531 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 20:49:09,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:49:09,531 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:09,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:09,532 INFO L82 PathProgramCache]: Analyzing trace with hash 936864637, now seen corresponding path program 1 times [2020-09-04 20:49:09,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:09,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366988682] [2020-09-04 20:49:09,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,969 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:09,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:10,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:10,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:10,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:10,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:10,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:49:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:10,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:49:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:10,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:49:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:10,047 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 20:49:10,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366988682] [2020-09-04 20:49:10,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:10,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:49:10,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231135699] [2020-09-04 20:49:10,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:49:10,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:10,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:49:10,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:49:10,052 INFO L87 Difference]: Start difference. First operand 261 states and 286 transitions. Second operand 4 states. [2020-09-04 20:49:10,735 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:49:11,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:11,805 INFO L93 Difference]: Finished difference Result 402 states and 456 transitions. [2020-09-04 20:49:11,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:49:11,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:49:11,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:11,810 INFO L225 Difference]: With dead ends: 402 [2020-09-04 20:49:11,810 INFO L226 Difference]: Without dead ends: 287 [2020-09-04 20:49:11,812 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 20:49:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-04 20:49:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 251. [2020-09-04 20:49:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-09-04 20:49:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 273 transitions. [2020-09-04 20:49:11,890 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 273 transitions. Word has length 154 [2020-09-04 20:49:11,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:11,891 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 273 transitions. [2020-09-04 20:49:11,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:49:11,891 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 273 transitions. [2020-09-04 20:49:11,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-04 20:49:11,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:11,894 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 20:49:11,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:49:11,895 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:11,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:11,895 INFO L82 PathProgramCache]: Analyzing trace with hash -367935570, now seen corresponding path program 1 times [2020-09-04 20:49:11,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:11,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463846740] [2020-09-04 20:49:11,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:12,267 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:12,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:12,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:12,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:12,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:12,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:12,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:49:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:12,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:49:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:12,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-04 20:49:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:12,452 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 20:49:12,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463846740] [2020-09-04 20:49:12,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:12,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:49:12,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128854518] [2020-09-04 20:49:12,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:49:12,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:12,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:49:12,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:49:12,455 INFO L87 Difference]: Start difference. First operand 251 states and 273 transitions. Second operand 9 states. [2020-09-04 20:49:12,934 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:13,267 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:49:13,628 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:49:13,942 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:14,247 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:14,526 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:15,544 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:49:18,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:18,091 INFO L93 Difference]: Finished difference Result 675 states and 782 transitions. [2020-09-04 20:49:18,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:49:18,092 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-04 20:49:18,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:18,098 INFO L225 Difference]: With dead ends: 675 [2020-09-04 20:49:18,098 INFO L226 Difference]: Without dead ends: 534 [2020-09-04 20:49:18,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-04 20:49:18,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-09-04 20:49:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 467. [2020-09-04 20:49:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-09-04 20:49:18,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 526 transitions. [2020-09-04 20:49:18,285 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 526 transitions. Word has length 163 [2020-09-04 20:49:18,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:18,286 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 526 transitions. [2020-09-04 20:49:18,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:49:18,286 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 526 transitions. [2020-09-04 20:49:18,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 20:49:18,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:18,290 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 20:49:18,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:49:18,290 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:18,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:18,291 INFO L82 PathProgramCache]: Analyzing trace with hash 586608814, now seen corresponding path program 1 times [2020-09-04 20:49:18,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:18,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227825192] [2020-09-04 20:49:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:18,689 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:18,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:18,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:18,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:18,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:18,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:18,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:49:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:18,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 20:49:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 20:49:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:18,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 20:49:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:18,855 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 20:49:18,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227825192] [2020-09-04 20:49:18,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:18,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:49:18,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144244845] [2020-09-04 20:49:18,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:49:18,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:18,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:49:18,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:49:18,859 INFO L87 Difference]: Start difference. First operand 467 states and 526 transitions. Second operand 9 states. [2020-09-04 20:49:19,527 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:21,672 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:22,043 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:22,330 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:22,648 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:22,953 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:23,270 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:23,566 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:24,522 INFO L93 Difference]: Finished difference Result 1264 states and 1525 transitions. [2020-09-04 20:49:24,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:49:24,523 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 20:49:24,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:24,534 INFO L225 Difference]: With dead ends: 1264 [2020-09-04 20:49:24,534 INFO L226 Difference]: Without dead ends: 907 [2020-09-04 20:49:24,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 20:49:24,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-09-04 20:49:24,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 807. [2020-09-04 20:49:24,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-09-04 20:49:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 935 transitions. [2020-09-04 20:49:24,779 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 935 transitions. Word has length 172 [2020-09-04 20:49:24,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:24,780 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 935 transitions. [2020-09-04 20:49:24,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:49:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 935 transitions. [2020-09-04 20:49:24,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 20:49:24,784 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:24,785 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 20:49:24,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:49:24,785 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:24,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:24,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1309262380, now seen corresponding path program 1 times [2020-09-04 20:49:24,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:24,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969374783] [2020-09-04 20:49:24,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,187 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:25,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:49:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 20:49:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 20:49:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 20:49:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-04 20:49:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:25,451 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 20:49:25,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969374783] [2020-09-04 20:49:25,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:25,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 20:49:25,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668960456] [2020-09-04 20:49:25,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 20:49:25,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:25,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 20:49:25,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 20:49:25,455 INFO L87 Difference]: Start difference. First operand 807 states and 935 transitions. Second operand 6 states. [2020-09-04 20:49:26,122 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:27,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:27,195 INFO L93 Difference]: Finished difference Result 1289 states and 1536 transitions. [2020-09-04 20:49:27,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 20:49:27,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-09-04 20:49:27,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:27,201 INFO L225 Difference]: With dead ends: 1289 [2020-09-04 20:49:27,201 INFO L226 Difference]: Without dead ends: 592 [2020-09-04 20:49:27,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-04 20:49:27,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-09-04 20:49:27,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 562. [2020-09-04 20:49:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-09-04 20:49:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 613 transitions. [2020-09-04 20:49:27,475 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 613 transitions. Word has length 177 [2020-09-04 20:49:27,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:27,475 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 613 transitions. [2020-09-04 20:49:27,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 20:49:27,476 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 613 transitions. [2020-09-04 20:49:27,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 20:49:27,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:27,481 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 20:49:27,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:49:27,481 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:27,482 INFO L82 PathProgramCache]: Analyzing trace with hash 95529110, now seen corresponding path program 1 times [2020-09-04 20:49:27,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:27,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960250042] [2020-09-04 20:49:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:49:27,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:49:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:49:27,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:49:27,905 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:49:27,905 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:49:27,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:49:28,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:49:28 BoogieIcfgContainer [2020-09-04 20:49:28,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:49:28,168 INFO L168 Benchmark]: Toolchain (without parser) took 23565.21 ms. Allocated memory was 141.0 MB in the beginning and 637.0 MB in the end (delta: 496.0 MB). Free memory was 103.8 MB in the beginning and 432.9 MB in the end (delta: -329.1 MB). Peak memory consumption was 166.9 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:28,168 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 20:49:28,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.11 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.6 MB in the beginning and 173.8 MB in the end (delta: -70.2 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:28,170 INFO L168 Benchmark]: Boogie Preprocessor took 120.45 ms. Allocated memory is still 204.5 MB. Free memory was 173.8 MB in the beginning and 169.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:28,171 INFO L168 Benchmark]: RCFGBuilder took 1200.53 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 169.2 MB in the beginning and 174.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:28,172 INFO L168 Benchmark]: TraceAbstraction took 21488.10 ms. Allocated memory was 235.4 MB in the beginning and 637.0 MB in the end (delta: 401.6 MB). Free memory was 173.1 MB in the beginning and 432.9 MB in the end (delta: -259.8 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:28,176 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.11 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.6 MB in the beginning and 173.8 MB in the end (delta: -70.2 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.45 ms. Allocated memory is still 204.5 MB. Free memory was 173.8 MB in the beginning and 169.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1200.53 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 169.2 MB in the beginning and 174.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21488.10 ms. Allocated memory was 235.4 MB in the beginning and 637.0 MB in the end (delta: 401.6 MB). Free memory was 173.1 MB in the beginning and 432.9 MB in the end (delta: -259.8 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 541]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=169, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=174, head={176:169}, methaneLevelCritical=145, pumpRunning=135, systemActive=134, waterLevel=1] [L48] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=169, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=174, head={176:169}, methaneLevelCritical=0, pumpRunning=135, systemActive=134, waterLevel=1] [L177] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=169, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=174, head={176:169}, methaneLevelCritical=0, pumpRunning=0, systemActive=134, waterLevel=1] [L178] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=169, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=174, head={176:169}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L438] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=169, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={176:169}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=169, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L514] 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] [L515] 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] [L519] 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] [L520] 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] [L521] 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] [L938] 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] [L941] 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] [L942] 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] [L521] 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] [L521] 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] [L523] 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] [L525] 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] [L526] 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] [L505] 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] [L372] 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] [L373] 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] [L374] 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] [L375] 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] [L376] 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] [L379] 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] [L381] 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] [L383] 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] [L389] 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] [L391] 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] [L393] 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] [L65] 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] [L66] 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] [L393] 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] [L399] 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] [L401] 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] [L409] 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] [L411] 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] [L415] 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] [L417] 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] [L419] 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] [L358] 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] [L365] 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] [L419] 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] [L426] 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] [L184] 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] [L191] 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] [L199] 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] [L139] 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] [L140] 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] [L141] 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] [L145] 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] [L86] 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] [L89] 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] [L90] 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] [L145] 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] [L145] 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] [L147] 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] [L151] 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] [L118] 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] [L121] 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] [L122] 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] [L151] 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] [L151] 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] [L153] 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] [L155] 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] [L291] 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] [L294] 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] [L295] 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] [L155] 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] [L155] 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] [L157] 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] [L161] 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] [L541] __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: 21.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1185 SDtfs, 1618 SDslu, 1507 SDs, 0 SdLazy, 3481 SolverSat, 521 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=807occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 276 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 996 NumberOfCodeBlocks, 996 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 342900 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...