/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_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:50:21,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:50:21,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:50:21,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:50:21,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:50:21,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:50:21,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:50:21,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:50:21,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:50:21,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:50:21,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:50:21,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:50:21,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:50:21,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:50:21,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:50:21,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:50:21,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:50:21,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:50:21,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:50:21,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:50:21,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:50:21,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:50:21,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:50:21,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:50:21,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:50:21,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:50:21,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:50:21,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:50:21,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:50:21,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:50:21,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:50:21,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:50:21,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:50:21,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:50:21,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:50:21,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:50:21,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:50:21,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:50:21,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:50:21,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:50:21,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:50:21,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 20:50:21,316 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:50:21,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:50:21,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:50:21,318 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:50:21,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:50:21,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:50:21,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:50:21,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:50:21,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:50:21,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:50:21,320 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:50:21,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:50:21,320 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:50:21,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:50:21,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:50:21,321 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:50:21,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:50:21,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:50:21,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:50:21,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:50:21,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:50:21,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:50:21,322 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 20:50:21,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:50:21,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:50:21,766 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:50:21,768 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:50:21,768 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:50:21,769 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-09-04 20:50:21,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/942db9bd9/21864ec3bc7249d8843880e99cfabf6f/FLAG994fdf77d [2020-09-04 20:50:22,430 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:50:22,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-09-04 20:50:22,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/942db9bd9/21864ec3bc7249d8843880e99cfabf6f/FLAG994fdf77d [2020-09-04 20:50:22,717 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/942db9bd9/21864ec3bc7249d8843880e99cfabf6f [2020-09-04 20:50:22,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:50:22,732 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:50:22,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:50:22,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:50:22,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:50:22,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:50:22" (1/1) ... [2020-09-04 20:50:22,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7384fbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:22, skipping insertion in model container [2020-09-04 20:50:22,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:50:22" (1/1) ... [2020-09-04 20:50:22,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:50:22,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:50:23,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:50:23,284 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:50:23,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:50:23,418 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:50:23,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23 WrapperNode [2020-09-04 20:50:23,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:50:23,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:50:23,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:50:23,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:50:23,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... [2020-09-04 20:50:23,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:50:23,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:50:23,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:50:23,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:50:23,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:50:23,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:50:23,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:50:23,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:50:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:50:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:50:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:50:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:50:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:50:23,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:50:23,590 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:50:23,590 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:50:23,590 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:50:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:50:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:50:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:50:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 20:50:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:50:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:50:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:50:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:50:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:50:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:50:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:50:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:50:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:50:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:50:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:50:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:50:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:50:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:50:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-04 20:50:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:50:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:50:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:50:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:50:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:50:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 20:50:23,596 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 20:50:23,596 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 20:50:23,596 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:50:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:50:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:50:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:50:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:50:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:50:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:50:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:50:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:50:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:50:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:50:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:50:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:50:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:50:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:50:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:50:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:50:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:50:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:50:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:50:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:50:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:50:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:50:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:50:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 20:50:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:50:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:50:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:50:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:50:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:50:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:50:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:50:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:50:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:50:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:50:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:50:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:50:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:50:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:50:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:50:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:50:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:50:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:50:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:50:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:50:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 20:50:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 20:50:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 20:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-04 20:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:50:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:50:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:50:24,705 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:50:24,706 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:50:24,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:50:24 BoogieIcfgContainer [2020-09-04 20:50:24,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:50:24,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:50:24,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:50:24,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:50:24,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:50:22" (1/3) ... [2020-09-04 20:50:24,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b6552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:50:24, skipping insertion in model container [2020-09-04 20:50:24,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:50:23" (2/3) ... [2020-09-04 20:50:24,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b6552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:50:24, skipping insertion in model container [2020-09-04 20:50:24,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:50:24" (3/3) ... [2020-09-04 20:50:24,722 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-09-04 20:50:24,734 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:50:24,746 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:50:24,770 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:50:24,799 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:50:24,800 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:50:24,800 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:50:24,800 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:50:24,800 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:50:24,800 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:50:24,801 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:50:24,801 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:50:24,825 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-04 20:50:24,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:50:24,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:24,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:50:24,852 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:24,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:24,860 INFO L82 PathProgramCache]: Analyzing trace with hash -266008754, now seen corresponding path program 1 times [2020-09-04 20:50:24,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:24,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385077022] [2020-09-04 20:50:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,653 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:25,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:50:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:50:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:50:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:25,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:25,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385077022] [2020-09-04 20:50:25,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:25,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:50:25,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564945243] [2020-09-04 20:50:25,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:50:25,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:25,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:50:25,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:50:25,843 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 3 states. [2020-09-04 20:50:27,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:27,173 INFO L93 Difference]: Finished difference Result 506 states and 598 transitions. [2020-09-04 20:50:27,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:50:27,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:50:27,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:27,196 INFO L225 Difference]: With dead ends: 506 [2020-09-04 20:50:27,196 INFO L226 Difference]: Without dead ends: 312 [2020-09-04 20:50:27,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:50:27,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-04 20:50:27,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-09-04 20:50:27,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-04 20:50:27,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-09-04 20:50:27,345 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 153 [2020-09-04 20:50:27,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:27,346 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-09-04 20:50:27,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:50:27,347 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-09-04 20:50:27,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:50:27,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:27,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:50:27,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:50:27,352 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:27,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:27,353 INFO L82 PathProgramCache]: Analyzing trace with hash 579021377, now seen corresponding path program 1 times [2020-09-04 20:50:27,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:27,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084588935] [2020-09-04 20:50:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:27,803 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:27,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:27,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:27,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:27,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:27,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:27,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:50:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:27,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:50:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:27,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:50:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:27,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:27,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084588935] [2020-09-04 20:50:27,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:27,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:50:27,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773149325] [2020-09-04 20:50:27,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:50:27,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:27,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:50:27,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:50:27,889 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 4 states. [2020-09-04 20:50:28,554 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:50:29,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:29,601 INFO L93 Difference]: Finished difference Result 410 states and 459 transitions. [2020-09-04 20:50:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:50:29,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:50:29,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:29,607 INFO L225 Difference]: With dead ends: 410 [2020-09-04 20:50:29,607 INFO L226 Difference]: Without dead ends: 295 [2020-09-04 20:50:29,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:50:29,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-04 20:50:29,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 258. [2020-09-04 20:50:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-09-04 20:50:29,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 277 transitions. [2020-09-04 20:50:29,686 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 277 transitions. Word has length 154 [2020-09-04 20:50:29,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:29,686 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 277 transitions. [2020-09-04 20:50:29,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:50:29,687 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 277 transitions. [2020-09-04 20:50:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 20:50:29,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:29,690 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 20:50:29,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:50:29,690 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:29,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:29,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1537433841, now seen corresponding path program 1 times [2020-09-04 20:50:29,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:29,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137749471] [2020-09-04 20:50:29,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:30,060 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:30,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:30,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:30,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:30,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:30,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:30,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:50:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:30,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 20:50:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:30,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 20:50:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:30,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 20:50:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:30,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:30,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137749471] [2020-09-04 20:50:30,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:30,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:50:30,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052035219] [2020-09-04 20:50:30,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:50:30,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:30,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:50:30,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:50:30,227 INFO L87 Difference]: Start difference. First operand 258 states and 277 transitions. Second operand 10 states. [2020-09-04 20:50:30,947 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:31,410 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:50:31,771 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:50:32,045 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:32,282 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:50:32,546 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:33,516 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:50:36,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:36,185 INFO L93 Difference]: Finished difference Result 720 states and 831 transitions. [2020-09-04 20:50:36,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 20:50:36,186 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 20:50:36,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:36,192 INFO L225 Difference]: With dead ends: 720 [2020-09-04 20:50:36,192 INFO L226 Difference]: Without dead ends: 572 [2020-09-04 20:50:36,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 20:50:36,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2020-09-04 20:50:36,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 465. [2020-09-04 20:50:36,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-09-04 20:50:36,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 514 transitions. [2020-09-04 20:50:36,367 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 514 transitions. Word has length 167 [2020-09-04 20:50:36,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:36,368 INFO L479 AbstractCegarLoop]: Abstraction has 465 states and 514 transitions. [2020-09-04 20:50:36,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:50:36,368 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 514 transitions. [2020-09-04 20:50:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 20:50:36,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:36,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:50:36,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:50:36,372 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:36,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:36,372 INFO L82 PathProgramCache]: Analyzing trace with hash 868861772, now seen corresponding path program 1 times [2020-09-04 20:50:36,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:36,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746893204] [2020-09-04 20:50:36,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:36,772 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:50:36,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:50:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:36,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:50:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:36,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:50:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:36,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:50:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:36,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:50:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:36,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 20:50:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:36,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 20:50:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:36,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 20:50:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:36,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 20:50:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:50:36,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:50:36,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746893204] [2020-09-04 20:50:36,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:50:36,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:50:36,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146258861] [2020-09-04 20:50:36,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:50:36,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:50:36,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:50:36,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:50:36,962 INFO L87 Difference]: Start difference. First operand 465 states and 514 transitions. Second operand 9 states. [2020-09-04 20:50:37,625 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:39,468 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:39,811 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:50:40,187 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:40,591 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:50:40,899 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:50:41,222 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:41,541 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:50:42,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:50:42,734 INFO L93 Difference]: Finished difference Result 1257 states and 1493 transitions. [2020-09-04 20:50:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:50:42,735 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 20:50:42,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:50:42,750 INFO L225 Difference]: With dead ends: 1257 [2020-09-04 20:50:42,750 INFO L226 Difference]: Without dead ends: 902 [2020-09-04 20:50:42,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 20:50:42,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-09-04 20:50:42,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 799. [2020-09-04 20:50:42,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 799 states. [2020-09-04 20:50:42,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 903 transitions. [2020-09-04 20:50:42,987 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 903 transitions. Word has length 172 [2020-09-04 20:50:42,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:50:42,987 INFO L479 AbstractCegarLoop]: Abstraction has 799 states and 903 transitions. [2020-09-04 20:50:42,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:50:42,988 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 903 transitions. [2020-09-04 20:50:42,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 20:50:42,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:50:42,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:50:42,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:50:42,992 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:50:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:50:42,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1844704864, now seen corresponding path program 1 times [2020-09-04 20:50:42,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:50:42,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230988492] [2020-09-04 20:50:42,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:50:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:50:43,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:50:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:50:43,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:50:43,376 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:50:43,377 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:50:43,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:50:43,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:50:43 BoogieIcfgContainer [2020-09-04 20:50:43,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:50:43,654 INFO L168 Benchmark]: Toolchain (without parser) took 20922.25 ms. Allocated memory was 140.0 MB in the beginning and 608.2 MB in the end (delta: 468.2 MB). Free memory was 103.4 MB in the beginning and 260.1 MB in the end (delta: -156.6 MB). Peak memory consumption was 311.6 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:43,656 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 140.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 20:50:43,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.47 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 103.2 MB in the beginning and 172.5 MB in the end (delta: -69.2 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:43,663 INFO L168 Benchmark]: Boogie Preprocessor took 92.75 ms. Allocated memory is still 204.5 MB. Free memory was 172.5 MB in the beginning and 167.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:43,664 INFO L168 Benchmark]: RCFGBuilder took 1201.11 ms. Allocated memory was 204.5 MB in the beginning and 239.1 MB in the end (delta: 34.6 MB). Free memory was 167.4 MB in the beginning and 176.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:43,665 INFO L168 Benchmark]: TraceAbstraction took 18937.40 ms. Allocated memory was 239.1 MB in the beginning and 608.2 MB in the end (delta: 369.1 MB). Free memory was 176.7 MB in the beginning and 260.1 MB in the end (delta: -83.4 MB). Peak memory consumption was 285.7 MB. Max. memory is 7.1 GB. [2020-09-04 20:50:43,677 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 140.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 685.47 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 103.2 MB in the beginning and 172.5 MB in the end (delta: -69.2 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.75 ms. Allocated memory is still 204.5 MB. Free memory was 172.5 MB in the beginning and 167.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1201.11 ms. Allocated memory was 204.5 MB in the beginning and 239.1 MB in the end (delta: 34.6 MB). Free memory was 167.4 MB in the beginning and 176.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18937.40 ms. Allocated memory was 239.1 MB in the beginning and 608.2 MB in the end (delta: 369.1 MB). Free memory was 176.7 MB in the beginning and 260.1 MB in the end (delta: -83.4 MB). Peak memory consumption was 285.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=175, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=4, head={176:164}, methaneLevelCritical=143, pumpRunning=131, systemActive=130, waterLevel=138] [L185] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=175, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=143, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=4, head={176:164}, methaneLevelCritical=143, pumpRunning=131, systemActive=130, waterLevel=1] [L186] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=175, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=143, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=4, head={176:164}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=175, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=143, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L693] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=175, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=130, waterLevel=1] [L694] int systemActive = 1; VAL [\old(cleanupTimeShifts)=175, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L305] 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] [L308] 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] [L309] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L887] 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] [L888] 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] [L889] 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] [L890] 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] [L891] 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] [L894] 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] [L896] 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] [L898] 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] [L904] 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] [L906] 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] [L908] 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] [L203] 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] [L204] 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] [L908] 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] [L914] 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] [L916] 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] [L924] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L926] COND FALSE !(\read(tmp___2)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L932] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L934] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L936] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L866] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L873] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L936] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L943] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L700] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L707] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L715] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L149] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L150] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L151] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L155] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L224] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L227] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L228] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L155] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L155] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L157] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L161] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L256] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L259] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L260] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L161] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L161] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L163] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L165] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L799] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L802] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L803] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L165] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L165] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L167] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L171] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L318] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1032 SDtfs, 1571 SDslu, 1414 SDs, 0 SdLazy, 3218 SolverSat, 547 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=799occurred 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, 4 MinimizatonAttempts, 291 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 251128 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...