/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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:22:44,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:22:44,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:22:44,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:22:44,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:22:44,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:22:44,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:22:44,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:22:44,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:22:44,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:22:44,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:22:44,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:22:44,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:22:44,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:22:44,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:22:44,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:22:44,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:22:44,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:22:44,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:22:44,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:22:44,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:22:44,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:22:44,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:22:44,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:22:44,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:22:44,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:22:44,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:22:44,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:22:44,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:22:44,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:22:44,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:22:44,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:22:44,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:22:44,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:22:44,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:22:44,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:22:44,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:22:44,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:22:44,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:22:44,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:22:44,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:22:44,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:22:44,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:22:44,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:22:44,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:22:44,426 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:22:44,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:22:44,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:22:44,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:22:44,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:22:44,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:22:44,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:22:44,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:22:44,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:22:44,427 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:22:44,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:22:44,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:22:44,428 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:22:44,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:22:44,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:22:44,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:22:44,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:22:44,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:22:44,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:22:44,429 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 [2020-08-22 21:22:44,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:22:44,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:22:44,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:22:44,778 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:22:44,778 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:22:44,779 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-08-22 21:22:44,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ace1a624/6cab292bdac94a2d9446fbb4c2a19a96/FLAGe2d2d9afc [2020-08-22 21:22:45,338 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:22:45,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-08-22 21:22:45,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ace1a624/6cab292bdac94a2d9446fbb4c2a19a96/FLAGe2d2d9afc [2020-08-22 21:22:45,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ace1a624/6cab292bdac94a2d9446fbb4c2a19a96 [2020-08-22 21:22:45,695 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:22:45,697 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:22:45,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:22:45,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:22:45,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:22:45,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:22:45" (1/1) ... [2020-08-22 21:22:45,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5ae353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:45, skipping insertion in model container [2020-08-22 21:22:45,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:22:45" (1/1) ... [2020-08-22 21:22:45,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:22:45,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:22:46,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:22:46,259 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:22:46,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:22:46,402 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:22:46,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:46 WrapperNode [2020-08-22 21:22:46,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:22:46,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:22:46,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:22:46,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:22:46,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:46" (1/1) ... [2020-08-22 21:22:46,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:46" (1/1) ... [2020-08-22 21:22:46,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:46" (1/1) ... [2020-08-22 21:22:46,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:46" (1/1) ... [2020-08-22 21:22:46,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:46" (1/1) ... [2020-08-22 21:22:46,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:46" (1/1) ... [2020-08-22 21:22:46,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:46" (1/1) ... [2020-08-22 21:22:46,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:22:46,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:22:46,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:22:46,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:22:46,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:22:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:22:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:22:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 21:22:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 21:22:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 21:22:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 21:22:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 21:22:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 21:22:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 21:22:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 21:22:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 21:22:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 21:22:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 21:22:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 21:22:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 21:22:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 21:22:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 21:22:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 21:22:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 21:22:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 21:22:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 21:22:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 21:22:46,602 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 21:22:46,602 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 21:22:46,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 21:22:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 21:22:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 21:22:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 21:22:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 21:22:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 21:22:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 21:22:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 21:22:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:22:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:22:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 21:22:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 21:22:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 21:22:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 21:22:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:22:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:22:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 21:22:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 21:22:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 21:22:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 21:22:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 21:22:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 21:22:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 21:22:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:22:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 21:22:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 21:22:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:22:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 21:22:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 21:22:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:22:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 21:22:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 21:22:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:22:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 21:22:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 21:22:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 21:22:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 21:22:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 21:22:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 21:22:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 21:22:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 21:22:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 21:22:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 21:22:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 21:22:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 21:22:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 21:22:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 21:22:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 21:22:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 21:22:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 21:22:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 21:22:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 21:22:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 21:22:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 21:22:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 21:22:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 21:22:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 21:22:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 21:22:46,613 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 21:22:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 21:22:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 21:22:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:22:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 21:22:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:22:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 21:22:46,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:22:47,914 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:22:47,914 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 21:22:47,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:22:47 BoogieIcfgContainer [2020-08-22 21:22:47,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:22:47,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:22:47,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:22:47,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:22:47,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:22:45" (1/3) ... [2020-08-22 21:22:47,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac42592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:22:47, skipping insertion in model container [2020-08-22 21:22:47,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:22:46" (2/3) ... [2020-08-22 21:22:47,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac42592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:22:47, skipping insertion in model container [2020-08-22 21:22:47,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:22:47" (3/3) ... [2020-08-22 21:22:47,930 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2020-08-22 21:22:47,940 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:22:47,949 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:22:47,959 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:22:47,978 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:22:47,978 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:22:47,978 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:22:47,978 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:22:47,979 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:22:47,979 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:22:47,979 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:22:47,979 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:22:47,999 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-08-22 21:22:48,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 21:22:48,020 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:48,021 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] [2020-08-22 21:22:48,022 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:48,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:48,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1461403982, now seen corresponding path program 1 times [2020-08-22 21:22:48,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:48,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707076917] [2020-08-22 21:22:48,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:48,787 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:48,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:48,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:48,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:48,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:48,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:48,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 21:22:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:48,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:22:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:49,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:22:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:49,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:22:49,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707076917] [2020-08-22 21:22:49,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:49,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 21:22:49,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582242211] [2020-08-22 21:22:49,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 21:22:49,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:49,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 21:22:49,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 21:22:49,070 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 3 states. [2020-08-22 21:22:50,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:50,482 INFO L93 Difference]: Finished difference Result 477 states and 570 transitions. [2020-08-22 21:22:50,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 21:22:50,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 21:22:50,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:50,518 INFO L225 Difference]: With dead ends: 477 [2020-08-22 21:22:50,519 INFO L226 Difference]: Without dead ends: 296 [2020-08-22 21:22:50,527 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 [2020-08-22 21:22:50,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-08-22 21:22:50,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 255. [2020-08-22 21:22:50,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-08-22 21:22:50,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 278 transitions. [2020-08-22 21:22:50,675 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 278 transitions. Word has length 153 [2020-08-22 21:22:50,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:50,676 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 278 transitions. [2020-08-22 21:22:50,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 21:22:50,676 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 278 transitions. [2020-08-22 21:22:50,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 21:22:50,681 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:50,682 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] [2020-08-22 21:22:50,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:22:50,682 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:50,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:50,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1820086342, now seen corresponding path program 1 times [2020-08-22 21:22:50,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:50,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987456753] [2020-08-22 21:22:50,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:51,071 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:51,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:51,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:51,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:51,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:51,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:51,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 21:22:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:51,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 21:22:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:51,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 21:22:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:51,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:22:51,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987456753] [2020-08-22 21:22:51,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:51,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:22:51,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294081567] [2020-08-22 21:22:51,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:22:51,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:51,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:22:51,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:22:51,222 INFO L87 Difference]: Start difference. First operand 255 states and 278 transitions. Second operand 4 states. [2020-08-22 21:22:51,818 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 21:22:52,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:52,813 INFO L93 Difference]: Finished difference Result 394 states and 445 transitions. [2020-08-22 21:22:52,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 21:22:52,814 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 21:22:52,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:52,819 INFO L225 Difference]: With dead ends: 394 [2020-08-22 21:22:52,819 INFO L226 Difference]: Without dead ends: 279 [2020-08-22 21:22:52,822 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 [2020-08-22 21:22:52,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-08-22 21:22:52,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-08-22 21:22:52,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-08-22 21:22:52,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-08-22 21:22:52,897 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 154 [2020-08-22 21:22:52,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:52,898 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-08-22 21:22:52,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:22:52,898 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-08-22 21:22:52,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-22 21:22:52,901 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:52,902 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] [2020-08-22 21:22:52,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:22:52,902 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:52,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:52,903 INFO L82 PathProgramCache]: Analyzing trace with hash 874874567, now seen corresponding path program 1 times [2020-08-22 21:22:52,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:52,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934627330] [2020-08-22 21:22:52,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:53,313 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:53,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:53,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:53,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:53,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:53,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:53,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 21:22:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:53,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 21:22:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:53,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 21:22:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:53,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:22:53,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934627330] [2020-08-22 21:22:53,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:53,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:22:53,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252933829] [2020-08-22 21:22:53,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:22:53,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:53,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:22:53,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:22:53,498 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 9 states. [2020-08-22 21:22:53,971 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:22:54,330 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 21:22:54,583 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 21:22:54,832 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:55,080 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:22:55,353 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:22:56,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:22:56,858 INFO L93 Difference]: Finished difference Result 414 states and 470 transitions. [2020-08-22 21:22:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 21:22:56,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-08-22 21:22:56,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:22:56,863 INFO L225 Difference]: With dead ends: 414 [2020-08-22 21:22:56,863 INFO L226 Difference]: Without dead ends: 279 [2020-08-22 21:22:56,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-08-22 21:22:56,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-08-22 21:22:56,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 245. [2020-08-22 21:22:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-08-22 21:22:56,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 264 transitions. [2020-08-22 21:22:56,941 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 264 transitions. Word has length 163 [2020-08-22 21:22:56,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:22:56,942 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 264 transitions. [2020-08-22 21:22:56,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:22:56,942 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 264 transitions. [2020-08-22 21:22:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-22 21:22:56,945 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:22:56,946 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] [2020-08-22 21:22:56,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:22:56,946 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:22:56,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:22:56,947 INFO L82 PathProgramCache]: Analyzing trace with hash 515182839, now seen corresponding path program 1 times [2020-08-22 21:22:56,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:22:56,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388067786] [2020-08-22 21:22:56,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:22:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,315 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 21:22:57,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:22:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 21:22:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 21:22:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 21:22:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 21:22:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 21:22:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:22:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:22:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 21:22:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-08-22 21:22:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-08-22 21:22:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:22:57,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:22:57,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388067786] [2020-08-22 21:22:57,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:22:57,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:22:57,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976931661] [2020-08-22 21:22:57,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:22:57,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:22:57,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:22:57,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:22:57,466 INFO L87 Difference]: Start difference. First operand 245 states and 264 transitions. Second operand 9 states. [2020-08-22 21:22:57,967 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:00,044 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:00,355 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:00,605 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:00,857 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 21:23:01,090 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:01,490 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 21:23:01,749 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 21:23:02,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:23:02,086 INFO L93 Difference]: Finished difference Result 586 states and 694 transitions. [2020-08-22 21:23:02,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 21:23:02,088 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-08-22 21:23:02,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:23:02,094 INFO L225 Difference]: With dead ends: 586 [2020-08-22 21:23:02,094 INFO L226 Difference]: Without dead ends: 451 [2020-08-22 21:23:02,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 21:23:02,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-08-22 21:23:02,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 374. [2020-08-22 21:23:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-08-22 21:23:02,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 416 transitions. [2020-08-22 21:23:02,251 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 416 transitions. Word has length 176 [2020-08-22 21:23:02,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:23:02,252 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 416 transitions. [2020-08-22 21:23:02,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:23:02,252 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 416 transitions. [2020-08-22 21:23:02,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-08-22 21:23:02,255 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:23:02,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:23:02,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:23:02,256 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:23:02,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:23:02,257 INFO L82 PathProgramCache]: Analyzing trace with hash -342521873, now seen corresponding path program 1 times [2020-08-22 21:23:02,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:23:02,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213040063] [2020-08-22 21:23:02,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:23:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:23:02,322 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:23:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:23:02,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:23:02,579 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:23:02,579 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:23:02,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 21:23:02,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:23:02 BoogieIcfgContainer [2020-08-22 21:23:02,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:23:02,766 INFO L168 Benchmark]: Toolchain (without parser) took 17069.41 ms. Allocated memory was 143.1 MB in the beginning and 557.8 MB in the end (delta: 414.7 MB). Free memory was 99.6 MB in the beginning and 346.7 MB in the end (delta: -247.1 MB). Peak memory consumption was 167.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:02,767 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:23:02,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.13 ms. Allocated memory was 143.1 MB in the beginning and 199.2 MB in the end (delta: 56.1 MB). Free memory was 99.4 MB in the beginning and 166.8 MB in the end (delta: -67.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:02,769 INFO L168 Benchmark]: Boogie Preprocessor took 105.43 ms. Allocated memory is still 199.2 MB. Free memory was 166.8 MB in the beginning and 162.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:02,770 INFO L168 Benchmark]: RCFGBuilder took 1412.49 ms. Allocated memory was 199.2 MB in the beginning and 228.1 MB in the end (delta: 28.8 MB). Free memory was 162.4 MB in the beginning and 172.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:02,771 INFO L168 Benchmark]: TraceAbstraction took 14841.54 ms. Allocated memory was 228.1 MB in the beginning and 557.8 MB in the end (delta: 329.8 MB). Free memory was 172.3 MB in the beginning and 346.7 MB in the end (delta: -174.4 MB). Peak memory consumption was 155.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:23:02,775 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 143.1 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.13 ms. Allocated memory was 143.1 MB in the beginning and 199.2 MB in the end (delta: 56.1 MB). Free memory was 99.4 MB in the beginning and 166.8 MB in the end (delta: -67.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.43 ms. Allocated memory is still 199.2 MB. Free memory was 166.8 MB in the beginning and 162.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1412.49 ms. Allocated memory was 199.2 MB in the beginning and 228.1 MB in the end (delta: 28.8 MB). Free memory was 162.4 MB in the beginning and 172.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14841.54 ms. Allocated memory was 228.1 MB in the beginning and 557.8 MB in the end (delta: 329.8 MB). Free memory was 172.3 MB in the beginning and 346.7 MB in the end (delta: -174.4 MB). Peak memory consumption was 155.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 598]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=146, pumpRunning=133, systemActive=132, waterLevel=139] [L415] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=132, waterLevel=139] [L416] int systemActive = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=139] [L672] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=1] [L673] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=172, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L761] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=172, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L838] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L843] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L920] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L923] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L924] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L844] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L844] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L846] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L848] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L849] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L828] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L609] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L610] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L611] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L614] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L616] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L618] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L624] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L626] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L628] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L690] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L691] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L628] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L634] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L636] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L644] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L646] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L659] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L423] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L430] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L478] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L481] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L455] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L470] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L438] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L861] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L862] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L863] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L867] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L711] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L714] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L715] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L867] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L867] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L869] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L873] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L743] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L746] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L747] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L873] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L873] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L875] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L877] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L530] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L533] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L534] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L877] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L877] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L879] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L883] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 933 SDtfs, 1173 SDslu, 1128 SDs, 0 SdLazy, 2550 SolverSat, 387 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=374occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 827 NumberOfCodeBlocks, 827 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 261596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...