/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_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:11:05,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:11:05,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:11:05,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:11:05,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:11:05,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:11:05,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:11:05,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:11:05,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:11:05,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:11:05,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:11:05,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:11:05,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:11:05,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:11:05,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:11:05,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:11:05,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:11:05,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:11:05,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:11:05,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:11:05,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:11:05,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:11:05,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:11:05,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:11:05,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 04:11:05,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 04:11:05,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 04:11:05,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 04:11:05,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 04:11:05,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 04:11:05,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 04:11:05,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 04:11:05,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 04:11:05,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 04:11:05,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 04:11:05,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 04:11:05,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 04:11:05,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 04:11:05,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:11:05,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:11:05,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:11:05,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:11:05,225 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:11:05,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:11:05,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:11:05,231 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:11:05,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:11:05,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:11:05,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:11:05,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:11:05,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:11:05,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:11:05,233 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:11:05,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:11:05,234 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:11:05,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:11:05,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:11:05,235 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:11:05,235 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:11:05,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:11:05,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:11:05,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:11:05,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:11:05,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:11:05,236 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:11:05,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:11:05,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:11:05,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:11:05,681 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:11:05,684 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:11:05,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-11-07 04:11:05,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b059c1279/d3fab454274a42349ef577ea3ab906a4/FLAG7fc56a911 [2020-11-07 04:11:06,409 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:11:06,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-11-07 04:11:06,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b059c1279/d3fab454274a42349ef577ea3ab906a4/FLAG7fc56a911 [2020-11-07 04:11:06,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b059c1279/d3fab454274a42349ef577ea3ab906a4 [2020-11-07 04:11:06,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:11:06,720 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:11:06,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:11:06,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:11:06,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:11:06,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:11:06" (1/1) ... [2020-11-07 04:11:06,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf8042e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:06, skipping insertion in model container [2020-11-07 04:11:06,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:11:06" (1/1) ... [2020-11-07 04:11:06,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:11:06,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:11:07,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:11:07,177 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:11:07,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:11:07,331 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:11:07,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:07 WrapperNode [2020-11-07 04:11:07,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:11:07,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:11:07,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:11:07,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:11:07,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:07" (1/1) ... [2020-11-07 04:11:07,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:07" (1/1) ... [2020-11-07 04:11:07,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:07" (1/1) ... [2020-11-07 04:11:07,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:07" (1/1) ... [2020-11-07 04:11:07,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:07" (1/1) ... [2020-11-07 04:11:07,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:07" (1/1) ... [2020-11-07 04:11:07,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:07" (1/1) ... [2020-11-07 04:11:07,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:11:07,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:11:07,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:11:07,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:11:07,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:07" (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 [2020-11-07 04:11:07,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:11:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:11:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 04:11:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:11:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 04:11:07,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 04:11:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 04:11:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 04:11:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 04:11:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 04:11:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 04:11:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 04:11:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 04:11:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 04:11:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 04:11:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 04:11:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 04:11:07,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 04:11:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 04:11:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 04:11:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 04:11:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 04:11:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 04:11:07,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 04:11:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 04:11:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 04:11:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 04:11:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:11:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 04:11:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 04:11:07,520 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 04:11:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 04:11:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 04:11:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 04:11:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 04:11:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 04:11:07,521 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 04:11:07,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 04:11:07,522 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 04:11:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:11:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:11:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:11:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:11:07,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 04:11:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 04:11:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 04:11:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 04:11:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 04:11:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 04:11:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 04:11:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 04:11:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 04:11:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 04:11:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 04:11:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 04:11:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 04:11:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 04:11:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 04:11:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 04:11:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 04:11:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 04:11:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:11:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 04:11:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 04:11:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 04:11:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 04:11:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 04:11:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 04:11:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 04:11:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:11:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:11:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:11:08,773 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:11:08,773 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 04:11:08,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:11:08 BoogieIcfgContainer [2020-11-07 04:11:08,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:11:08,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:11:08,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:11:08,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:11:08,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:11:06" (1/3) ... [2020-11-07 04:11:08,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695643d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:11:08, skipping insertion in model container [2020-11-07 04:11:08,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:07" (2/3) ... [2020-11-07 04:11:08,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695643d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:11:08, skipping insertion in model container [2020-11-07 04:11:08,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:11:08" (3/3) ... [2020-11-07 04:11:08,786 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2020-11-07 04:11:08,802 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:11:08,806 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 04:11:08,819 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 04:11:08,845 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:11:08,845 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:11:08,845 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:11:08,845 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:11:08,845 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:11:08,846 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:11:08,846 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:11:08,846 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:11:08,869 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-11-07 04:11:08,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 04:11:08,889 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:11:08,890 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] [2020-11-07 04:11:08,891 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]=== [2020-11-07 04:11:08,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:11:08,898 INFO L82 PathProgramCache]: Analyzing trace with hash 737661165, now seen corresponding path program 1 times [2020-11-07 04:11:08,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:11:08,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735243229] [2020-11-07 04:11:08,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:11:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:09,636 WARN L194 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:11:09,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:11:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:09,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:11:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:09,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:11:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:09,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:11:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:09,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:11:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:09,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 04:11:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:09,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 04:11:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:09,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 04:11:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:09,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:11:09,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735243229] [2020-11-07 04:11:09,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:11:09,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 04:11:09,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754465240] [2020-11-07 04:11:09,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 04:11:09,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:11:09,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 04:11:09,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 04:11:09,820 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 3 states. [2020-11-07 04:11:11,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:11:11,318 INFO L93 Difference]: Finished difference Result 445 states and 528 transitions. [2020-11-07 04:11:11,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 04:11:11,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 04:11:11,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:11:11,337 INFO L225 Difference]: With dead ends: 445 [2020-11-07 04:11:11,338 INFO L226 Difference]: Without dead ends: 280 [2020-11-07 04:11:11,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 04:11:11,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-11-07 04:11:11,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 241. [2020-11-07 04:11:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-07 04:11:11,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 259 transitions. [2020-11-07 04:11:11,512 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 259 transitions. Word has length 159 [2020-11-07 04:11:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:11:11,513 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 259 transitions. [2020-11-07 04:11:11,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 04:11:11,513 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 259 transitions. [2020-11-07 04:11:11,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 04:11:11,517 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:11:11,517 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] [2020-11-07 04:11:11,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:11:11,518 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]=== [2020-11-07 04:11:11,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:11:11,519 INFO L82 PathProgramCache]: Analyzing trace with hash -101000119, now seen corresponding path program 1 times [2020-11-07 04:11:11,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:11:11,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067641396] [2020-11-07 04:11:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:11:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:11,984 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:11:11,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:11:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:11:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:11:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:11:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:11:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 04:11:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 04:11:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 04:11:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:12,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:11:12,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067641396] [2020-11-07 04:11:12,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:11:12,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:11:12,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360239211] [2020-11-07 04:11:12,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:11:12,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:11:12,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:11:12,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:11:12,151 INFO L87 Difference]: Start difference. First operand 241 states and 259 transitions. Second operand 4 states. [2020-11-07 04:11:12,977 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 04:11:13,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:11:13,968 INFO L93 Difference]: Finished difference Result 359 states and 399 transitions. [2020-11-07 04:11:13,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 04:11:13,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 04:11:13,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:11:13,973 INFO L225 Difference]: With dead ends: 359 [2020-11-07 04:11:13,973 INFO L226 Difference]: Without dead ends: 263 [2020-11-07 04:11:13,975 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 [2020-11-07 04:11:13,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-11-07 04:11:14,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 231. [2020-11-07 04:11:14,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-11-07 04:11:14,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 246 transitions. [2020-11-07 04:11:14,065 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 246 transitions. Word has length 160 [2020-11-07 04:11:14,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:11:14,065 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 246 transitions. [2020-11-07 04:11:14,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:11:14,066 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 246 transitions. [2020-11-07 04:11:14,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 04:11:14,068 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:11:14,068 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] [2020-11-07 04:11:14,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:11:14,069 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]=== [2020-11-07 04:11:14,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:11:14,070 INFO L82 PathProgramCache]: Analyzing trace with hash -289670422, now seen corresponding path program 1 times [2020-11-07 04:11:14,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:11:14,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810010140] [2020-11-07 04:11:14,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:11:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:14,612 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:11:14,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:11:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:14,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:11:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:14,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:11:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:14,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:11:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:14,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:11:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:14,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 04:11:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:14,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 04:11:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:14,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 04:11:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:11:14,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810010140] [2020-11-07 04:11:14,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:11:14,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 04:11:14,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105933030] [2020-11-07 04:11:14,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 04:11:14,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:11:14,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 04:11:14,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:11:14,838 INFO L87 Difference]: Start difference. First operand 231 states and 246 transitions. Second operand 9 states. [2020-11-07 04:11:15,631 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:11:16,123 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 04:11:16,541 WARN L194 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 04:11:16,957 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:17,390 WARN L194 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:11:17,785 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:19,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:11:19,532 INFO L93 Difference]: Finished difference Result 379 states and 424 transitions. [2020-11-07 04:11:19,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 04:11:19,533 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 04:11:19,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:11:19,538 INFO L225 Difference]: With dead ends: 379 [2020-11-07 04:11:19,538 INFO L226 Difference]: Without dead ends: 263 [2020-11-07 04:11:19,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-07 04:11:19,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-11-07 04:11:19,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 231. [2020-11-07 04:11:19,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-11-07 04:11:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 245 transitions. [2020-11-07 04:11:19,644 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 245 transitions. Word has length 169 [2020-11-07 04:11:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:11:19,644 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 245 transitions. [2020-11-07 04:11:19,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 04:11:19,645 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 245 transitions. [2020-11-07 04:11:19,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 04:11:19,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:11:19,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:11:19,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:11:19,648 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]=== [2020-11-07 04:11:19,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:11:19,649 INFO L82 PathProgramCache]: Analyzing trace with hash 432001603, now seen corresponding path program 1 times [2020-11-07 04:11:19,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:11:19,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994604741] [2020-11-07 04:11:19,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:11:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,075 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:11:20,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:11:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:11:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:11:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:11:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:11:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 04:11:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:11:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 04:11:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 04:11:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 04:11:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:20,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:11:20,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994604741] [2020-11-07 04:11:20,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:11:20,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 04:11:20,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697604558] [2020-11-07 04:11:20,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 04:11:20,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:11:20,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 04:11:20,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 04:11:20,261 INFO L87 Difference]: Start difference. First operand 231 states and 245 transitions. Second operand 9 states. [2020-11-07 04:11:20,952 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:11:22,981 WARN L194 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:23,436 WARN L194 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:11:23,911 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:24,413 WARN L194 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 04:11:24,795 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:11:25,178 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:25,608 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 04:11:26,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:11:26,351 INFO L93 Difference]: Finished difference Result 529 states and 620 transitions. [2020-11-07 04:11:26,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 04:11:26,351 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2020-11-07 04:11:26,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:11:26,355 INFO L225 Difference]: With dead ends: 529 [2020-11-07 04:11:26,356 INFO L226 Difference]: Without dead ends: 413 [2020-11-07 04:11:26,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 04:11:26,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-11-07 04:11:26,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 338. [2020-11-07 04:11:26,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-07 04:11:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 369 transitions. [2020-11-07 04:11:26,528 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 369 transitions. Word has length 177 [2020-11-07 04:11:26,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:11:26,528 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 369 transitions. [2020-11-07 04:11:26,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 04:11:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 369 transitions. [2020-11-07 04:11:26,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-11-07 04:11:26,532 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:11:26,532 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, 1, 1, 1, 1] [2020-11-07 04:11:26,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:11:26,533 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]=== [2020-11-07 04:11:26,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:11:26,534 INFO L82 PathProgramCache]: Analyzing trace with hash 590025749, now seen corresponding path program 1 times [2020-11-07 04:11:26,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:11:26,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554463476] [2020-11-07 04:11:26,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:11:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:26,975 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 04:11:26,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:11:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 04:11:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 04:11:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 04:11:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 04:11:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-07 04:11:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 04:11:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-11-07 04:11:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:11:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 04:11:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 04:11:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-11-07 04:11:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:11:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:11:27,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554463476] [2020-11-07 04:11:27,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:11:27,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:11:27,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806793395] [2020-11-07 04:11:27,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:11:27,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:11:27,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:11:27,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:11:27,185 INFO L87 Difference]: Start difference. First operand 338 states and 369 transitions. Second operand 6 states. [2020-11-07 04:11:27,850 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 04:11:28,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:11:28,621 INFO L93 Difference]: Finished difference Result 508 states and 574 transitions. [2020-11-07 04:11:28,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 04:11:28,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2020-11-07 04:11:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:11:28,624 INFO L225 Difference]: With dead ends: 508 [2020-11-07 04:11:28,624 INFO L226 Difference]: Without dead ends: 285 [2020-11-07 04:11:28,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-11-07 04:11:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-11-07 04:11:28,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 264. [2020-11-07 04:11:28,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-11-07 04:11:28,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 279 transitions. [2020-11-07 04:11:28,739 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 279 transitions. Word has length 187 [2020-11-07 04:11:28,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:11:28,739 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 279 transitions. [2020-11-07 04:11:28,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:11:28,740 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 279 transitions. [2020-11-07 04:11:28,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-11-07 04:11:28,742 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:11:28,743 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] [2020-11-07 04:11:28,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 04:11:28,743 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]=== [2020-11-07 04:11:28,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:11:28,744 INFO L82 PathProgramCache]: Analyzing trace with hash -398365457, now seen corresponding path program 1 times [2020-11-07 04:11:28,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:11:28,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91135199] [2020-11-07 04:11:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:11:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:11:28,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:11:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:11:28,903 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:11:29,197 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:11:29,198 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:11:29,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 04:11:29,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:11:29 BoogieIcfgContainer [2020-11-07 04:11:29,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:11:29,432 INFO L168 Benchmark]: Toolchain (without parser) took 22717.15 ms. Allocated memory was 161.5 MB in the beginning and 419.4 MB in the end (delta: 257.9 MB). Free memory was 136.5 MB in the beginning and 321.9 MB in the end (delta: -185.4 MB). Peak memory consumption was 255.9 MB. Max. memory is 8.0 GB. [2020-11-07 04:11:29,433 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 161.5 MB. Free memory was 136.6 MB in the beginning and 136.5 MB in the end (delta: 88.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:11:29,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.48 ms. Allocated memory is still 161.5 MB. Free memory was 135.9 MB in the beginning and 115.0 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:11:29,435 INFO L168 Benchmark]: Boogie Preprocessor took 99.78 ms. Allocated memory is still 161.5 MB. Free memory was 115.0 MB in the beginning and 111.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:11:29,437 INFO L168 Benchmark]: RCFGBuilder took 1342.65 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 111.1 MB in the beginning and 143.4 MB in the end (delta: -32.3 MB). Peak memory consumption was 41.4 MB. Max. memory is 8.0 GB. [2020-11-07 04:11:29,439 INFO L168 Benchmark]: TraceAbstraction took 20652.00 ms. Allocated memory was 194.0 MB in the beginning and 419.4 MB in the end (delta: 225.4 MB). Free memory was 142.9 MB in the beginning and 321.9 MB in the end (delta: -179.0 MB). Peak memory consumption was 229.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:11:29,448 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 161.5 MB. Free memory was 136.6 MB in the beginning and 136.5 MB in the end (delta: 88.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 610.48 ms. Allocated memory is still 161.5 MB. Free memory was 135.9 MB in the beginning and 115.0 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 99.78 ms. Allocated memory is still 161.5 MB. Free memory was 115.0 MB in the beginning and 111.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1342.65 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 111.1 MB in the beginning and 143.4 MB in the end (delta: -32.3 MB). Peak memory consumption was 41.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20652.00 ms. Allocated memory was 194.0 MB in the beginning and 419.4 MB in the end (delta: 225.4 MB). Free memory was 142.9 MB in the beginning and 321.9 MB in the end (delta: -179.0 MB). Peak memory consumption was 229.1 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: [L258] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=147, pumpRunning=140, systemActive=139, waterLevel=142] [L460] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=147, pumpRunning=140, systemActive=139, waterLevel=1] [L461] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=140, systemActive=139, waterLevel=1] [L587] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=140, systemActive=139, waterLevel=1] [L688] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=139, waterLevel=1] [L689] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=147, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L663] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L664] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L668] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L669] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L578] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L581] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L582] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L670] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L670] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L672] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L674] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L675] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L657] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L866] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L868] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L870] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L876] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L878] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L880] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L479] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L880] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L886] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L888] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L896] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L898] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L911] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L704] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L724] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L742] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L704] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L710] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L48] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L49] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L499] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L502] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L503] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L53] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L55] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L59] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L534] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L535] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L59] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L59] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L61] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L63] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L794] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L797] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L798] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L63] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L63] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L65] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L69] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product25.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 631 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1062 SDtfs, 1433 SDslu, 1287 SDs, 0 SdLazy, 2438 SolverSat, 402 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 199 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1034 NumberOfCodeBlocks, 1034 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 847 ConstructedInterpolants, 0 QuantifiedInterpolants, 370836 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...