/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:00:30,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:00:30,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:00:30,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 00:00:30,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 00:00:30,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 00:00:30,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 00:00:30,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 00:00:30,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 00:00:30,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 00:00:30,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 00:00:30,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 00:00:30,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:00:30,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:00:30,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:00:30,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:00:30,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:00:30,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:00:30,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:00:30,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:00:30,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:00:30,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:00:30,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:00:30,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:00:30,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 00:00:30,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 00:00:30,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 00:00:30,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 00:00:30,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 00:00:30,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 00:00:30,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 00:00:30,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 00:00:30,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 00:00:30,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 00:00:30,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 00:00:30,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 00:00:30,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 00:00:30,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 00:00:30,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 00:00:30,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 00:00:30,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 00:00:30,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:00:30,866 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:00:30,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:00:30,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:00:30,871 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:00:30,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:00:30,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:00:30,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:00:30,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:00:30,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:00:30,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:00:30,874 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:00:30,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:00:30,874 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:00:30,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:00:30,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:00:30,875 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:00:30,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:00:30,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:00:30,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:00:30,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:00:30,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:00:30,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:00:30,876 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:00:31,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:00:31,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:00:31,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:00:31,364 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:00:31,365 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:00:31,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-10-24 00:00:31,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7f4f58f/321af1ffb3844e0ebbb8cab4690fb2b8/FLAG0239a98c1 [2020-10-24 00:00:32,066 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:00:32,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-10-24 00:00:32,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7f4f58f/321af1ffb3844e0ebbb8cab4690fb2b8/FLAG0239a98c1 [2020-10-24 00:00:32,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7f4f58f/321af1ffb3844e0ebbb8cab4690fb2b8 [2020-10-24 00:00:32,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:00:32,402 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:00:32,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:00:32,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:00:32,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:00:32,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:00:32" (1/1) ... [2020-10-24 00:00:32,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30495f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:32, skipping insertion in model container [2020-10-24 00:00:32,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:00:32" (1/1) ... [2020-10-24 00:00:32,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:00:32,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:00:32,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:00:32,855 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:00:32,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:00:33,012 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:00:33,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:33 WrapperNode [2020-10-24 00:00:33,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:00:33,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:00:33,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:00:33,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:00:33,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:33" (1/1) ... [2020-10-24 00:00:33,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:33" (1/1) ... [2020-10-24 00:00:33,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:33" (1/1) ... [2020-10-24 00:00:33,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:33" (1/1) ... [2020-10-24 00:00:33,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:33" (1/1) ... [2020-10-24 00:00:33,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:33" (1/1) ... [2020-10-24 00:00:33,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:33" (1/1) ... [2020-10-24 00:00:33,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:00:33,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:00:33,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:00:33,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:00:33,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:33" (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 [2020-10-24 00:00:33,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:00:33,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:00:33,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-24 00:00:33,274 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:00:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-24 00:00:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-24 00:00:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-24 00:00:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-24 00:00:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-24 00:00:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-24 00:00:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-24 00:00:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-24 00:00:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-24 00:00:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-24 00:00:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-24 00:00:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-24 00:00:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-24 00:00:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-24 00:00:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-24 00:00:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-24 00:00:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-24 00:00:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-24 00:00:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-24 00:00:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-24 00:00:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-24 00:00:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-24 00:00:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-24 00:00:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-24 00:00:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-24 00:00:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-24 00:00:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-24 00:00:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-24 00:00:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-24 00:00:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-24 00:00:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-24 00:00:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-24 00:00:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-24 00:00:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-24 00:00:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-24 00:00:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-24 00:00:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-24 00:00:33,281 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-24 00:00:33,281 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:00:33,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-24 00:00:33,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-24 00:00:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:00:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:00:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:00:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:00:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 00:00:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-24 00:00:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-24 00:00:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-24 00:00:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-24 00:00:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-24 00:00:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-24 00:00:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-24 00:00:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-24 00:00:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-24 00:00:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-24 00:00:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-24 00:00:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-24 00:00:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-24 00:00:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-24 00:00:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-24 00:00:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-24 00:00:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-24 00:00:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-24 00:00:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-24 00:00:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-24 00:00:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-24 00:00:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-24 00:00:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-24 00:00:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-24 00:00:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-24 00:00:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-24 00:00:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-24 00:00:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-24 00:00:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-24 00:00:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-24 00:00:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-24 00:00:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-24 00:00:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-24 00:00:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-24 00:00:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-24 00:00:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-24 00:00:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:00:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-24 00:00:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-24 00:00:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:00:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-24 00:00:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-24 00:00:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:00:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-24 00:00:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-24 00:00:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-24 00:00:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-24 00:00:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-24 00:00:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-24 00:00:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:00:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-24 00:00:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:00:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:00:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:00:35,147 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:00:35,150 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-24 00:00:35,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:00:35 BoogieIcfgContainer [2020-10-24 00:00:35,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:00:35,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:00:35,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:00:35,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:00:35,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:00:32" (1/3) ... [2020-10-24 00:00:35,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f39f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:00:35, skipping insertion in model container [2020-10-24 00:00:35,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:00:33" (2/3) ... [2020-10-24 00:00:35,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f39f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:00:35, skipping insertion in model container [2020-10-24 00:00:35,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:00:35" (3/3) ... [2020-10-24 00:00:35,162 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-10-24 00:00:35,174 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:00:35,180 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-24 00:00:35,192 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-24 00:00:35,216 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:00:35,216 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:00:35,216 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:00:35,216 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:00:35,216 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:00:35,216 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:00:35,217 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:00:35,217 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:00:35,243 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states. [2020-10-24 00:00:35,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-24 00:00:35,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:00:35,267 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] [2020-10-24 00:00:35,268 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:00:35,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:00:35,274 INFO L82 PathProgramCache]: Analyzing trace with hash -995804249, now seen corresponding path program 1 times [2020-10-24 00:00:35,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:00:35,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612635870] [2020-10-24 00:00:35,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:00:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:36,371 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-24 00:00:36,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:00:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:36,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 00:00:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:36,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-24 00:00:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:36,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-24 00:00:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:36,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 00:00:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:36,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-24 00:00:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:36,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-24 00:00:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:36,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-24 00:00:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:36,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:00:36,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612635870] [2020-10-24 00:00:36,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:00:36,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 00:00:36,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413666261] [2020-10-24 00:00:36,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 00:00:36,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:00:36,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 00:00:36,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 00:00:36,554 INFO L87 Difference]: Start difference. First operand 371 states. Second operand 3 states. [2020-10-24 00:00:38,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:00:38,736 INFO L93 Difference]: Finished difference Result 606 states and 721 transitions. [2020-10-24 00:00:38,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 00:00:38,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-24 00:00:38,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:00:38,757 INFO L225 Difference]: With dead ends: 606 [2020-10-24 00:00:38,757 INFO L226 Difference]: Without dead ends: 365 [2020-10-24 00:00:38,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 00:00:38,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-10-24 00:00:38,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 317. [2020-10-24 00:00:38,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-10-24 00:00:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 349 transitions. [2020-10-24 00:00:38,993 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 349 transitions. Word has length 159 [2020-10-24 00:00:38,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:00:38,994 INFO L481 AbstractCegarLoop]: Abstraction has 317 states and 349 transitions. [2020-10-24 00:00:38,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 00:00:38,994 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 349 transitions. [2020-10-24 00:00:39,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-24 00:00:39,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:00:39,000 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] [2020-10-24 00:00:39,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:00:39,001 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:00:39,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:00:39,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1204769495, now seen corresponding path program 1 times [2020-10-24 00:00:39,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:00:39,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628706072] [2020-10-24 00:00:39,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:00:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:39,462 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-24 00:00:39,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:00:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:39,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 00:00:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:39,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-24 00:00:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:39,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-24 00:00:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:39,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 00:00:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:39,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-24 00:00:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:39,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-24 00:00:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:39,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-24 00:00:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:39,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:00:39,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628706072] [2020-10-24 00:00:39,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:00:39,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:00:39,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733369192] [2020-10-24 00:00:39,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:00:39,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:00:39,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:00:39,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:00:39,581 INFO L87 Difference]: Start difference. First operand 317 states and 349 transitions. Second operand 4 states. [2020-10-24 00:00:40,393 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-24 00:00:42,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:00:42,135 INFO L93 Difference]: Finished difference Result 510 states and 580 transitions. [2020-10-24 00:00:42,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 00:00:42,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-24 00:00:42,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:00:42,141 INFO L225 Difference]: With dead ends: 510 [2020-10-24 00:00:42,141 INFO L226 Difference]: Without dead ends: 348 [2020-10-24 00:00:42,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 00:00:42,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-24 00:00:42,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 307. [2020-10-24 00:00:42,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-10-24 00:00:42,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 336 transitions. [2020-10-24 00:00:42,269 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 336 transitions. Word has length 160 [2020-10-24 00:00:42,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:00:42,270 INFO L481 AbstractCegarLoop]: Abstraction has 307 states and 336 transitions. [2020-10-24 00:00:42,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:00:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 336 transitions. [2020-10-24 00:00:42,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-24 00:00:42,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:00:42,274 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] [2020-10-24 00:00:42,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:00:42,275 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:00:42,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:00:42,275 INFO L82 PathProgramCache]: Analyzing trace with hash -962342513, now seen corresponding path program 1 times [2020-10-24 00:00:42,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:00:42,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036632432] [2020-10-24 00:00:42,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:00:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:42,747 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-24 00:00:42,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:00:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:42,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 00:00:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:42,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-24 00:00:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:42,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-24 00:00:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:42,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 00:00:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:42,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-24 00:00:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:42,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-24 00:00:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:42,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-24 00:00:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:42,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-24 00:00:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:42,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:00:42,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036632432] [2020-10-24 00:00:42,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:00:43,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-24 00:00:43,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152927186] [2020-10-24 00:00:43,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 00:00:43,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:00:43,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 00:00:43,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-24 00:00:43,013 INFO L87 Difference]: Start difference. First operand 307 states and 336 transitions. Second operand 10 states. [2020-10-24 00:00:43,734 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-24 00:00:44,210 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-24 00:00:44,594 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-24 00:00:45,008 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-24 00:00:45,408 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-24 00:00:45,772 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-24 00:00:46,884 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-24 00:00:50,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:00:50,977 INFO L93 Difference]: Finished difference Result 866 states and 1011 transitions. [2020-10-24 00:00:50,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-24 00:00:50,978 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-24 00:00:50,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:00:50,986 INFO L225 Difference]: With dead ends: 866 [2020-10-24 00:00:50,986 INFO L226 Difference]: Without dead ends: 674 [2020-10-24 00:00:50,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-24 00:00:50,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-10-24 00:00:51,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 569. [2020-10-24 00:00:51,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2020-10-24 00:00:51,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 642 transitions. [2020-10-24 00:00:51,259 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 642 transitions. Word has length 173 [2020-10-24 00:00:51,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:00:51,259 INFO L481 AbstractCegarLoop]: Abstraction has 569 states and 642 transitions. [2020-10-24 00:00:51,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 00:00:51,260 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 642 transitions. [2020-10-24 00:00:51,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-24 00:00:51,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:00:51,264 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] [2020-10-24 00:00:51,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 00:00:51,265 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:00:51,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:00:51,266 INFO L82 PathProgramCache]: Analyzing trace with hash 2056183593, now seen corresponding path program 1 times [2020-10-24 00:00:51,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:00:51,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886493607] [2020-10-24 00:00:51,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:00:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:51,698 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-24 00:00:51,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:00:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:51,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 00:00:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:51,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-24 00:00:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:51,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-24 00:00:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:51,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 00:00:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:51,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-24 00:00:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:51,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-24 00:00:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:51,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-24 00:00:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:51,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-24 00:00:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:00:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:00:51,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886493607] [2020-10-24 00:00:51,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:00:51,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-24 00:00:51,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530562615] [2020-10-24 00:00:51,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 00:00:51,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:00:51,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 00:00:51,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-24 00:00:51,892 INFO L87 Difference]: Start difference. First operand 569 states and 642 transitions. Second operand 9 states. [2020-10-24 00:00:52,515 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-24 00:00:55,160 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-24 00:00:55,627 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-24 00:00:56,138 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-24 00:00:56,609 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-24 00:00:56,985 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-24 00:00:57,360 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-24 00:00:57,749 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-24 00:00:59,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:00:59,510 INFO L93 Difference]: Finished difference Result 1574 states and 1898 transitions. [2020-10-24 00:00:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-24 00:00:59,511 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-24 00:00:59,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:00:59,521 INFO L225 Difference]: With dead ends: 1574 [2020-10-24 00:00:59,521 INFO L226 Difference]: Without dead ends: 1120 [2020-10-24 00:00:59,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-24 00:00:59,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-10-24 00:00:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1009. [2020-10-24 00:00:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2020-10-24 00:00:59,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1165 transitions. [2020-10-24 00:00:59,920 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1165 transitions. Word has length 178 [2020-10-24 00:00:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:00:59,920 INFO L481 AbstractCegarLoop]: Abstraction has 1009 states and 1165 transitions. [2020-10-24 00:00:59,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 00:00:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1165 transitions. [2020-10-24 00:00:59,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-24 00:00:59,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:00:59,927 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, 1, 1] [2020-10-24 00:00:59,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 00:00:59,927 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:00:59,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:00:59,928 INFO L82 PathProgramCache]: Analyzing trace with hash -2004316662, now seen corresponding path program 1 times [2020-10-24 00:00:59,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:00:59,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617370902] [2020-10-24 00:00:59,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:00:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,325 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-24 00:01:00,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:01:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-24 00:01:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-24 00:01:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-24 00:01:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 00:01:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-24 00:01:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-24 00:01:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-24 00:01:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-24 00:01:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-24 00:01:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:01:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:01:00,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617370902] [2020-10-24 00:01:00,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:01:00,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:01:00,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275668644] [2020-10-24 00:01:00,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:01:00,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:01:00,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:01:00,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:01:00,481 INFO L87 Difference]: Start difference. First operand 1009 states and 1165 transitions. Second operand 6 states. [2020-10-24 00:01:01,096 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-24 00:01:03,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:01:03,896 INFO L93 Difference]: Finished difference Result 2261 states and 2724 transitions. [2020-10-24 00:01:03,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 00:01:03,896 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-10-24 00:01:03,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:01:03,904 INFO L225 Difference]: With dead ends: 2261 [2020-10-24 00:01:03,904 INFO L226 Difference]: Without dead ends: 1367 [2020-10-24 00:01:03,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-24 00:01:03,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-10-24 00:01:04,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1266. [2020-10-24 00:01:04,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-10-24 00:01:04,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1441 transitions. [2020-10-24 00:01:04,548 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1441 transitions. Word has length 183 [2020-10-24 00:01:04,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:01:04,549 INFO L481 AbstractCegarLoop]: Abstraction has 1266 states and 1441 transitions. [2020-10-24 00:01:04,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:01:04,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1441 transitions. [2020-10-24 00:01:04,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-24 00:01:04,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:01:04,553 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, 1, 1] [2020-10-24 00:01:04,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 00:01:04,553 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:01:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:01:04,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1815258259, now seen corresponding path program 1 times [2020-10-24 00:01:04,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:01:04,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025820448] [2020-10-24 00:01:04,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:01:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:01:04,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:01:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:01:04,704 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:01:04,928 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:01:04,928 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:01:04,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 00:01:05,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:01:05 BoogieIcfgContainer [2020-10-24 00:01:05,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:01:05,201 INFO L168 Benchmark]: Toolchain (without parser) took 32802.67 ms. Allocated memory was 152.0 MB in the beginning and 634.4 MB in the end (delta: 482.3 MB). Free memory was 126.6 MB in the beginning and 418.2 MB in the end (delta: -291.6 MB). Peak memory consumption was 191.6 MB. Max. memory is 8.0 GB. [2020-10-24 00:01:05,206 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:01:05,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.03 ms. Allocated memory is still 152.0 MB. Free memory was 126.0 MB in the beginning and 102.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:01:05,212 INFO L168 Benchmark]: Boogie Preprocessor took 139.10 ms. Allocated memory is still 152.0 MB. Free memory was 102.9 MB in the beginning and 133.3 MB in the end (delta: -30.3 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:01:05,213 INFO L168 Benchmark]: RCFGBuilder took 2000.11 ms. Allocated memory was 152.0 MB in the beginning and 199.2 MB in the end (delta: 47.2 MB). Free memory was 133.3 MB in the beginning and 123.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 57.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:01:05,214 INFO L168 Benchmark]: TraceAbstraction took 30042.31 ms. Allocated memory was 199.2 MB in the beginning and 634.4 MB in the end (delta: 435.2 MB). Free memory was 122.7 MB in the beginning and 418.2 MB in the end (delta: -295.5 MB). Peak memory consumption was 139.7 MB. Max. memory is 8.0 GB. [2020-10-24 00:01:05,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 606.03 ms. Allocated memory is still 152.0 MB. Free memory was 126.0 MB in the beginning and 102.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 139.10 ms. Allocated memory is still 152.0 MB. Free memory was 102.9 MB in the beginning and 133.3 MB in the end (delta: -30.3 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2000.11 ms. Allocated memory was 152.0 MB in the beginning and 199.2 MB in the end (delta: 47.2 MB). Free memory was 133.3 MB in the beginning and 123.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 57.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 30042.31 ms. Allocated memory was 199.2 MB in the beginning and 634.4 MB in the end (delta: 435.2 MB). Free memory was 122.7 MB in the beginning and 418.2 MB in the end (delta: -295.5 MB). Peak memory consumption was 139.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L92] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=174, head={182:166}, methaneLevelCritical=147, pumpRunning=0, systemActive=139, waterLevel=144] [L93] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=174, head={182:166}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=144] [L429] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=174, head={182:166}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=1] [L430] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=174, head={182:166}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=174, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L971] 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] [L972] 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] [L976] 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] [L977] 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] [L978] 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] [L71] 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] [L74] 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] [L75] 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] [L978] 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] [L978] 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] [L980] 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] [L982] 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] [L983] 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] [L965] 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] [L360] 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] [L361] 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] [L362] 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] [L363] 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] [L364] 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] [L367] 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] [L369] 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] [L371] 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] [L377] 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] [L379] 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] [L381] 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] [L447] 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] [L448] 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] [L381] 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] [L387] 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] [L389] 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] [L397] 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] [L399] 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] [L405] 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] [L407] 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] [L409] 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] [L336] 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] [L343] 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] [L409] 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] [L416] 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] [L100] 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] [L107] 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] [L115] 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] [L1004] 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] [L1005] 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] [L1006] 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] [L1010] 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] [L468] 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] [L471] 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] [L472] 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] [L1010] 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] [L1010] 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] [L1012] 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] [L1016] 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] [L500] 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] [L503] 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] [L504] 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] [L1016] 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] [L1016] 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] [L1018] 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] [L1020] 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] [L250] 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] [L253] 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] [L254] 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] [L1020] 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] [L1020] 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] [L1022] 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] [L1026] 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] [L998] CALL reach_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] [L3] __assert_fail("0", "minepump_spec3_product64.cil.c", 3, "reach_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 45 procedures, 687 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 23.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1512 SDtfs, 3038 SDslu, 1737 SDs, 0 SdLazy, 4403 SolverSat, 1155 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1266occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 406 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1036 NumberOfCodeBlocks, 1036 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 848 ConstructedInterpolants, 0 QuantifiedInterpolants, 365438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...