/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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:47:33,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:47:33,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:47:33,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:47:33,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:47:33,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:47:33,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:47:33,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:47:33,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:47:33,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:47:33,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:47:33,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:47:33,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:47:33,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:47:33,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:47:33,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:47:33,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:47:33,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:47:33,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:47:33,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:47:33,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:47:33,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:47:33,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:47:33,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:47:33,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:47:33,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:47:33,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:47:33,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:47:33,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:47:33,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:47:33,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:47:33,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:47:33,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:47:33,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:47:33,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:47:33,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:47:33,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:47:33,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:47:33,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:47:33,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:47:33,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:47:33,325 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 20:47:33,346 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:47:33,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:47:33,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:47:33,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:47:33,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:47:33,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:47:33,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:47:33,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:47:33,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:47:33,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:47:33,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:47:33,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:47:33,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:47:33,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:47:33,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:47:33,352 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:47:33,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:47:33,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:47:33,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:47:33,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:47:33,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:47:33,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:47:33,353 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 20:47:33,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:47:33,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:47:33,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:47:33,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:47:33,801 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:47:33,802 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-09-04 20:47:33,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68ad30a81/31fa4710f82a43c6938ec7759d0da86e/FLAG963e10af7 [2020-09-04 20:47:34,486 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:47:34,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-09-04 20:47:34,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68ad30a81/31fa4710f82a43c6938ec7759d0da86e/FLAG963e10af7 [2020-09-04 20:47:34,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/68ad30a81/31fa4710f82a43c6938ec7759d0da86e [2020-09-04 20:47:34,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:47:34,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:47:34,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:47:34,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:47:34,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:47:34,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:47:34" (1/1) ... [2020-09-04 20:47:34,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbef4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:34, skipping insertion in model container [2020-09-04 20:47:34,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:47:34" (1/1) ... [2020-09-04 20:47:34,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:47:34,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:47:35,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:47:35,330 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:47:35,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:47:35,452 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:47:35,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:35 WrapperNode [2020-09-04 20:47:35,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:47:35,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:47:35,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:47:35,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:47:35,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:35" (1/1) ... [2020-09-04 20:47:35,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:35" (1/1) ... [2020-09-04 20:47:35,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:35" (1/1) ... [2020-09-04 20:47:35,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:35" (1/1) ... [2020-09-04 20:47:35,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:35" (1/1) ... [2020-09-04 20:47:35,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:35" (1/1) ... [2020-09-04 20:47:35,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:35" (1/1) ... [2020-09-04 20:47:35,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:47:35,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:47:35,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:47:35,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:47:35,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:35" (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 20:47:35,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:47:35,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:47:35,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:47:35,672 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:47:35,672 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:47:35,672 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:47:35,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:47:35,673 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:47:35,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:47:35,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:47:35,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:47:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:47:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:47:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:47:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:47:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:47:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:47:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:47:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:47:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:47:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:47:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:47:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:47:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:47:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:47:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:47:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:47:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:47:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:47:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:47:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:47:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:47:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:47:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 20:47:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 20:47:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:47:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:47:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:47:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:47:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:47:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:47:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:47:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:47:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:47:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:47:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:47:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:47:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:47:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:47:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:47:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:47:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:47:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:47:35,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:47:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:47:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:47:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:47:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:47:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:47:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:47:35,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:47:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:47:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:47:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:47:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:47:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:47:35,687 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:47:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:47:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:47:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:47:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:47:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:47:35,688 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:47:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:47:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:47:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:47:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:47:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:47:35,689 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:47:35,690 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 20:47:35,690 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 20:47:35,691 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:47:35,691 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:47:35,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:47:35,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:47:35,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:47:36,778 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:47:36,779 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:47:36,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:47:36 BoogieIcfgContainer [2020-09-04 20:47:36,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:47:36,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:47:36,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:47:36,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:47:36,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:47:34" (1/3) ... [2020-09-04 20:47:36,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32693ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:47:36, skipping insertion in model container [2020-09-04 20:47:36,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:35" (2/3) ... [2020-09-04 20:47:36,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32693ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:47:36, skipping insertion in model container [2020-09-04 20:47:36,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:47:36" (3/3) ... [2020-09-04 20:47:36,796 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2020-09-04 20:47:36,807 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:47:36,819 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:47:36,842 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:47:36,870 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:47:36,870 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:47:36,870 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:47:36,870 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:47:36,870 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:47:36,871 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:47:36,871 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:47:36,871 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:47:36,893 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states. [2020-09-04 20:47:36,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:47:36,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:36,917 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 20:47:36,917 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:36,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:36,925 INFO L82 PathProgramCache]: Analyzing trace with hash 713311147, now seen corresponding path program 1 times [2020-09-04 20:47:36,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:36,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163521692] [2020-09-04 20:47:36,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:37,705 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:47:37,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:47:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:37,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:47:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:37,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:47:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:37,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:47:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:37,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:47:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:37,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:47:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:37,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:47:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:37,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:47:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:37,942 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 20:47:37,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163521692] [2020-09-04 20:47:37,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:47:37,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:47:37,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202257211] [2020-09-04 20:47:37,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:47:37,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:47:37,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:47:37,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:47:37,983 INFO L87 Difference]: Start difference. First operand 271 states. Second operand 3 states. [2020-09-04 20:47:39,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:47:39,188 INFO L93 Difference]: Finished difference Result 394 states and 471 transitions. [2020-09-04 20:47:39,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:47:39,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:47:39,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:47:39,212 INFO L225 Difference]: With dead ends: 394 [2020-09-04 20:47:39,212 INFO L226 Difference]: Without dead ends: 254 [2020-09-04 20:47:39,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:47:39,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-04 20:47:39,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 214. [2020-09-04 20:47:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-04 20:47:39,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2020-09-04 20:47:39,375 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 153 [2020-09-04 20:47:39,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:47:39,378 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2020-09-04 20:47:39,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:47:39,378 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2020-09-04 20:47:39,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:47:39,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:39,395 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 20:47:39,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:47:39,396 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:39,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:39,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1000146475, now seen corresponding path program 1 times [2020-09-04 20:47:39,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:39,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691707017] [2020-09-04 20:47:39,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:39,825 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:47:39,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:47:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:39,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:47:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:39,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:47:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:39,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:47:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:39,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:47:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:39,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:47:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:39,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:47:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:39,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:47:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:39,941 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 20:47:39,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691707017] [2020-09-04 20:47:39,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:47:39,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:47:39,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089780468] [2020-09-04 20:47:39,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:47:39,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:47:39,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:47:39,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:47:39,946 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand 4 states. [2020-09-04 20:47:40,567 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:47:41,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:47:41,281 INFO L93 Difference]: Finished difference Result 298 states and 332 transitions. [2020-09-04 20:47:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:47:41,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:47:41,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:47:41,286 INFO L225 Difference]: With dead ends: 298 [2020-09-04 20:47:41,286 INFO L226 Difference]: Without dead ends: 237 [2020-09-04 20:47:41,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:47:41,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-09-04 20:47:41,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 204. [2020-09-04 20:47:41,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-09-04 20:47:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 216 transitions. [2020-09-04 20:47:41,356 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 216 transitions. Word has length 154 [2020-09-04 20:47:41,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:47:41,359 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 216 transitions. [2020-09-04 20:47:41,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:47:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 216 transitions. [2020-09-04 20:47:41,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 20:47:41,361 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:41,361 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] [2020-09-04 20:47:41,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:47:41,362 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:41,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:41,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1955216043, now seen corresponding path program 1 times [2020-09-04 20:47:41,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:41,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854949960] [2020-09-04 20:47:41,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:41,860 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:47:41,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:47:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:41,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:47:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:41,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:47:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:41,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:47:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:41,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:47:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:41,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:47:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:41,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 20:47:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:41,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 20:47:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:41,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 20:47:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:42,033 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 20:47:42,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854949960] [2020-09-04 20:47:42,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:47:42,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:47:42,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240304129] [2020-09-04 20:47:42,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:47:42,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:47:42,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:47:42,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:47:42,036 INFO L87 Difference]: Start difference. First operand 204 states and 216 transitions. Second operand 10 states. [2020-09-04 20:47:42,584 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:47:42,983 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:47:43,311 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:47:43,614 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:43,933 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:47:44,249 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:45,235 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:47:46,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:47:46,969 INFO L93 Difference]: Finished difference Result 550 states and 638 transitions. [2020-09-04 20:47:46,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 20:47:46,970 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 20:47:46,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:47:46,975 INFO L225 Difference]: With dead ends: 550 [2020-09-04 20:47:46,975 INFO L226 Difference]: Without dead ends: 456 [2020-09-04 20:47:46,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 20:47:46,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-04 20:47:47,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 357. [2020-09-04 20:47:47,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-09-04 20:47:47,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 392 transitions. [2020-09-04 20:47:47,095 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 392 transitions. Word has length 167 [2020-09-04 20:47:47,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:47:47,096 INFO L479 AbstractCegarLoop]: Abstraction has 357 states and 392 transitions. [2020-09-04 20:47:47,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:47:47,096 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 392 transitions. [2020-09-04 20:47:47,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-04 20:47:47,099 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:47,099 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] [2020-09-04 20:47:47,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:47:47,099 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:47,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:47,100 INFO L82 PathProgramCache]: Analyzing trace with hash 546702602, now seen corresponding path program 1 times [2020-09-04 20:47:47,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:47,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461403075] [2020-09-04 20:47:47,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,445 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:47:47,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:47:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:47:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:47:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:47:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:47:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:47:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:47:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 20:47:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-04 20:47:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 20:47:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:47,623 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 20:47:47,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461403075] [2020-09-04 20:47:47,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:47:47,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:47:47,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295673251] [2020-09-04 20:47:47,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:47:47,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:47:47,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:47:47,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:47:47,626 INFO L87 Difference]: Start difference. First operand 357 states and 392 transitions. Second operand 9 states. [2020-09-04 20:47:48,177 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:47:49,699 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:50,105 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:47:50,440 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:50,700 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:47:50,972 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:47:51,301 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:51,608 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:47:52,164 INFO L93 Difference]: Finished difference Result 909 states and 1077 transitions. [2020-09-04 20:47:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:47:52,165 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-04 20:47:52,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:47:52,171 INFO L225 Difference]: With dead ends: 909 [2020-09-04 20:47:52,172 INFO L226 Difference]: Without dead ends: 662 [2020-09-04 20:47:52,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 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 20:47:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-09-04 20:47:52,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 579. [2020-09-04 20:47:52,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-09-04 20:47:52,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 655 transitions. [2020-09-04 20:47:52,327 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 655 transitions. Word has length 170 [2020-09-04 20:47:52,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:47:52,328 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 655 transitions. [2020-09-04 20:47:52,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:47:52,328 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 655 transitions. [2020-09-04 20:47:52,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-04 20:47:52,332 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:52,332 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] [2020-09-04 20:47:52,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:47:52,332 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:52,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:52,333 INFO L82 PathProgramCache]: Analyzing trace with hash 758250360, now seen corresponding path program 1 times [2020-09-04 20:47:52,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:52,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301771082] [2020-09-04 20:47:52,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,701 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:47:52,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:47:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:47:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:47:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:47:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:47:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:47:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 20:47:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-04 20:47:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-04 20:47:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-04 20:47:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-04 20:47:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:52,874 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 20:47:52,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301771082] [2020-09-04 20:47:52,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:47:52,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 20:47:52,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959022932] [2020-09-04 20:47:52,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 20:47:52,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:47:52,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 20:47:52,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 20:47:52,878 INFO L87 Difference]: Start difference. First operand 579 states and 655 transitions. Second operand 6 states. [2020-09-04 20:47:53,453 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:47:54,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:47:54,509 INFO L93 Difference]: Finished difference Result 1068 states and 1252 transitions. [2020-09-04 20:47:54,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 20:47:54,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-09-04 20:47:54,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:47:54,515 INFO L225 Difference]: With dead ends: 1068 [2020-09-04 20:47:54,515 INFO L226 Difference]: Without dead ends: 599 [2020-09-04 20:47:54,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-04 20:47:54,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-09-04 20:47:54,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 530. [2020-09-04 20:47:54,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-09-04 20:47:54,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 581 transitions. [2020-09-04 20:47:54,708 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 581 transitions. Word has length 175 [2020-09-04 20:47:54,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:47:54,709 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 581 transitions. [2020-09-04 20:47:54,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 20:47:54,709 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 581 transitions. [2020-09-04 20:47:54,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-04 20:47:54,712 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:54,712 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] [2020-09-04 20:47:54,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:47:54,713 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:54,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:54,713 INFO L82 PathProgramCache]: Analyzing trace with hash 194624342, now seen corresponding path program 1 times [2020-09-04 20:47:54,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:54,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544414099] [2020-09-04 20:47:54,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:47:54,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:47:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:47:54,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:47:55,142 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:47:55,142 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:47:55,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:47:55,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:47:55 BoogieIcfgContainer [2020-09-04 20:47:55,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:47:55,385 INFO L168 Benchmark]: Toolchain (without parser) took 20591.12 ms. Allocated memory was 140.5 MB in the beginning and 608.7 MB in the end (delta: 468.2 MB). Free memory was 101.6 MB in the beginning and 397.5 MB in the end (delta: -295.9 MB). Peak memory consumption was 172.3 MB. Max. memory is 7.1 GB. [2020-09-04 20:47:55,386 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-04 20:47:55,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.43 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 173.1 MB in the end (delta: -71.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-09-04 20:47:55,388 INFO L168 Benchmark]: Boogie Preprocessor took 139.50 ms. Allocated memory is still 204.5 MB. Free memory was 173.1 MB in the beginning and 168.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-04 20:47:55,389 INFO L168 Benchmark]: RCFGBuilder took 1192.93 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 168.5 MB in the beginning and 177.0 MB in the end (delta: -8.5 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:47:55,390 INFO L168 Benchmark]: TraceAbstraction took 18595.70 ms. Allocated memory was 235.4 MB in the beginning and 608.7 MB in the end (delta: 373.3 MB). Free memory was 177.0 MB in the beginning and 397.5 MB in the end (delta: -220.5 MB). Peak memory consumption was 152.8 MB. Max. memory is 7.1 GB. [2020-09-04 20:47:55,393 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.43 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 173.1 MB in the end (delta: -71.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.50 ms. Allocated memory is still 204.5 MB. Free memory was 173.1 MB in the beginning and 168.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1192.93 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 168.5 MB in the beginning and 177.0 MB in the end (delta: -8.5 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18595.70 ms. Allocated memory was 235.4 MB in the beginning and 608.7 MB in the end (delta: 373.3 MB). Free memory was 177.0 MB in the beginning and 397.5 MB in the end (delta: -220.5 MB). Peak memory consumption was 152.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 633]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=174, head={176:164}, methaneLevelCritical=142, pumpRunning=131, systemActive=130, waterLevel=1] [L47] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=174, head={176:164}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=174, head={0:0}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L530] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L677] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=130, waterLevel=1] [L678] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] 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] [L607] 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] [L611] 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] [L612] 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] [L613] 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] [L521] 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] [L524] 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] [L525] 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] [L613] 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] [L613] 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] [L615] 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] [L617] 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] [L618] 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] [L600] 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] [L808] 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] [L809] 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] [L810] 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] [L811] 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] [L812] 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] [L815] 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] [L817] 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] [L819] 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] [L825] 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] [L827] 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] [L829] 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] [L64] 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] [L65] 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] [L829] 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] [L835] 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] [L837] 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] [L845] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L847] COND TRUE \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=1, waterLevel=2] [L849] CALL startSystem() 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] [L802] systemActive = 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] [L849] RET startSystem() 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=1, waterLevel=2] [L864] 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=1, waterLevel=2] [L684] 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=1, waterLevel=2] [L691] COND TRUE \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=1, waterLevel=2] [L693] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L699] 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=1, waterLevel=2] [L640] 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=1, waterLevel=2] [L641] 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=1, waterLevel=2] [L642] 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=1, waterLevel=2] [L646] 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=1, waterLevel=2] [L85] 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=1, waterLevel=2] [L88] 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=1, waterLevel=2] [L89] 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=1, waterLevel=2] [L646] 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=1, waterLevel=2] [L646] 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=1, tmp=0, waterLevel=2] [L648] 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=1, tmp=0, waterLevel=2] [L652] 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=1, waterLevel=2] [L117] 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=1, waterLevel=2] [L120] 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=1, waterLevel=2] [L121] 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=1, waterLevel=2] [L652] 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=1, tmp=0, waterLevel=2] [L652] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L654] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L656] 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=1, waterLevel=2] [L739] 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=1, waterLevel=2] [L742] 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=1, waterLevel=2] [L743] 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=1, waterLevel=2] [L656] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L656] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L658] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L662] 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=1, waterLevel=2] [L633] __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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 588 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 979 SDtfs, 1553 SDslu, 1438 SDs, 0 SdLazy, 2520 SolverSat, 508 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=579occurred 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 324 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 994 NumberOfCodeBlocks, 994 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 324848 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...