/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_spec1_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 03:54:44,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 03:54:44,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 03:54:44,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 03:54:44,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 03:54:44,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 03:54:44,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 03:54:44,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 03:54:44,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 03:54:44,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 03:54:44,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 03:54:44,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 03:54:44,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 03:54:44,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 03:54:44,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 03:54:44,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 03:54:44,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 03:54:44,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 03:54:44,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 03:54:44,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 03:54:44,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 03:54:44,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 03:54:44,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 03:54:44,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 03:54:44,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 03:54:44,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 03:54:44,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 03:54:44,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 03:54:44,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 03:54:44,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 03:54:44,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 03:54:44,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 03:54:44,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 03:54:44,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 03:54:44,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 03:54:44,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 03:54:44,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 03:54:44,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 03:54:44,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 03:54:44,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 03:54:44,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 03:54:44,821 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 03:54:44,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 03:54:44,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 03:54:44,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 03:54:44,836 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 03:54:44,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 03:54:44,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 03:54:44,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 03:54:44,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 03:54:44,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 03:54:44,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 03:54:44,837 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 03:54:44,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 03:54:44,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 03:54:44,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 03:54:44,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 03:54:44,839 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 03:54:44,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 03:54:44,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 03:54:44,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 03:54:44,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 03:54:44,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 03:54:44,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 03:54:44,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 03:54:45,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 03:54:45,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 03:54:45,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 03:54:45,283 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 03:54:45,284 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 03:54:45,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-11-07 03:54:45,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b7038ed/91d77d232f534dde818cb04b55df1ce7/FLAGafd778b6e [2020-11-07 03:54:46,014 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 03:54:46,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-11-07 03:54:46,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b7038ed/91d77d232f534dde818cb04b55df1ce7/FLAGafd778b6e [2020-11-07 03:54:46,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55b7038ed/91d77d232f534dde818cb04b55df1ce7 [2020-11-07 03:54:46,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 03:54:46,373 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 03:54:46,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 03:54:46,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 03:54:46,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 03:54:46,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53bd6e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46, skipping insertion in model container [2020-11-07 03:54:46,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 03:54:46,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 03:54:46,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:54:46,814 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 03:54:46,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:54:46,975 INFO L208 MainTranslator]: Completed translation [2020-11-07 03:54:46,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46 WrapperNode [2020-11-07 03:54:46,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 03:54:46,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 03:54:46,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 03:54:46,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 03:54:46,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:47,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:47,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:47,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:47,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:47,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:47,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 03:54:47,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 03:54:47,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 03:54:47,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 03:54:47,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 03:54:47,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 03:54:47,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 03:54:47,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 03:54:47,178 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 03:54:47,178 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 03:54:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 03:54:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 03:54:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 03:54:47,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 03:54:47,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 03:54:47,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 03:54:47,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 03:54:47,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 03:54:47,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 03:54:47,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 03:54:47,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 03:54:47,182 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 03:54:47,182 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 03:54:47,183 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 03:54:47,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 03:54:47,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 03:54:47,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 03:54:47,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 03:54:47,187 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 03:54:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 03:54:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 03:54:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 03:54:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 03:54:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 03:54:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 03:54:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 03:54:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 03:54:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 03:54:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 03:54:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:54:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 03:54:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 03:54:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 03:54:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 03:54:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 03:54:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 03:54:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 03:54:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 03:54:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 03:54:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 03:54:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 03:54:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 03:54:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 03:54:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 03:54:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 03:54:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 03:54:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 03:54:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 03:54:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 03:54:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 03:54:47,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 03:54:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 03:54:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 03:54:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 03:54:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 03:54:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 03:54:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 03:54:47,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 03:54:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 03:54:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 03:54:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 03:54:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 03:54:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 03:54:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 03:54:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 03:54:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 03:54:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 03:54:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 03:54:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 03:54:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 03:54:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 03:54:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 03:54:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 03:54:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 03:54:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 03:54:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 03:54:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 03:54:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 03:54:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:54:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 03:54:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 03:54:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 03:54:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 03:54:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 03:54:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 03:54:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 03:54:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 03:54:48,511 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 03:54:48,512 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 03:54:48,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:48 BoogieIcfgContainer [2020-11-07 03:54:48,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 03:54:48,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 03:54:48,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 03:54:48,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 03:54:48,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:54:46" (1/3) ... [2020-11-07 03:54:48,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611fb9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:54:48, skipping insertion in model container [2020-11-07 03:54:48,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (2/3) ... [2020-11-07 03:54:48,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611fb9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:54:48, skipping insertion in model container [2020-11-07 03:54:48,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:48" (3/3) ... [2020-11-07 03:54:48,524 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2020-11-07 03:54:48,540 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 03:54:48,545 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 03:54:48,559 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 03:54:48,598 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 03:54:48,598 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 03:54:48,598 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 03:54:48,598 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 03:54:48,599 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 03:54:48,599 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 03:54:48,599 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 03:54:48,600 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 03:54:48,634 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-11-07 03:54:48,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-07 03:54:48,663 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:54:48,664 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] [2020-11-07 03:54:48,664 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 03:54:48,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:54:48,671 INFO L82 PathProgramCache]: Analyzing trace with hash 961635695, now seen corresponding path program 1 times [2020-11-07 03:54:48,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:54:48,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278006594] [2020-11-07 03:54:48,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:54:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,368 WARN L194 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:54:49,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:54:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:54:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:54:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:54:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:54:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:54:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 03:54:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,598 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 03:54:49,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278006594] [2020-11-07 03:54:49,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:54:49,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 03:54:49,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006856724] [2020-11-07 03:54:49,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 03:54:49,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:54:49,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 03:54:49,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 03:54:49,643 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 3 states. [2020-11-07 03:54:51,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:54:51,109 INFO L93 Difference]: Finished difference Result 438 states and 522 transitions. [2020-11-07 03:54:51,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 03:54:51,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-07 03:54:51,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:54:51,129 INFO L225 Difference]: With dead ends: 438 [2020-11-07 03:54:51,129 INFO L226 Difference]: Without dead ends: 277 [2020-11-07 03:54:51,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 03:54:51,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-11-07 03:54:51,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 237. [2020-11-07 03:54:51,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-11-07 03:54:51,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 255 transitions. [2020-11-07 03:54:51,386 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 255 transitions. Word has length 148 [2020-11-07 03:54:51,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:54:51,390 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 255 transitions. [2020-11-07 03:54:51,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 03:54:51,390 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 255 transitions. [2020-11-07 03:54:51,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-07 03:54:51,401 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:54:51,402 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] [2020-11-07 03:54:51,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 03:54:51,403 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 03:54:51,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:54:51,404 INFO L82 PathProgramCache]: Analyzing trace with hash 571866584, now seen corresponding path program 1 times [2020-11-07 03:54:51,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:54:51,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984333307] [2020-11-07 03:54:51,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:54:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,870 WARN L194 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:54:51,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:54:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:54:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:54:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:54:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:54:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 03:54:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:54:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:52,024 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 03:54:52,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984333307] [2020-11-07 03:54:52,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:54:52,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 03:54:52,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182979836] [2020-11-07 03:54:52,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 03:54:52,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:54:52,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 03:54:52,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 03:54:52,031 INFO L87 Difference]: Start difference. First operand 237 states and 255 transitions. Second operand 4 states. [2020-11-07 03:54:52,763 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:54:53,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:54:53,616 INFO L93 Difference]: Finished difference Result 348 states and 389 transitions. [2020-11-07 03:54:53,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 03:54:53,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-07 03:54:53,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:54:53,630 INFO L225 Difference]: With dead ends: 348 [2020-11-07 03:54:53,631 INFO L226 Difference]: Without dead ends: 260 [2020-11-07 03:54:53,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 03:54:53,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-11-07 03:54:53,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 227. [2020-11-07 03:54:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-11-07 03:54:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 242 transitions. [2020-11-07 03:54:53,727 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 242 transitions. Word has length 149 [2020-11-07 03:54:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:54:53,728 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 242 transitions. [2020-11-07 03:54:53,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 03:54:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 242 transitions. [2020-11-07 03:54:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-11-07 03:54:53,730 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:54:53,730 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] [2020-11-07 03:54:53,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 03:54:53,731 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 03:54:53,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:54:53,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1932278497, now seen corresponding path program 1 times [2020-11-07 03:54:53,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:54:53,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624191981] [2020-11-07 03:54:53,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:54:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,168 WARN L194 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:54:54,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:54:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:54:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:54:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:54:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:54:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 03:54:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-11-07 03:54:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 03:54:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,412 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 03:54:54,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624191981] [2020-11-07 03:54:54,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:54:54,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:54:54,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446316467] [2020-11-07 03:54:54,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:54:54,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:54:54,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:54:54,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:54:54,419 INFO L87 Difference]: Start difference. First operand 227 states and 242 transitions. Second operand 10 states. [2020-11-07 03:54:54,972 WARN L194 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:54:55,348 WARN L194 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:54:55,631 WARN L194 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 03:54:55,957 WARN L194 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:54:56,259 WARN L194 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:54:56,584 WARN L194 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:54:58,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:54:58,142 INFO L93 Difference]: Finished difference Result 394 states and 451 transitions. [2020-11-07 03:54:58,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 03:54:58,143 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-11-07 03:54:58,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:54:58,146 INFO L225 Difference]: With dead ends: 394 [2020-11-07 03:54:58,147 INFO L226 Difference]: Without dead ends: 282 [2020-11-07 03:54:58,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-07 03:54:58,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-07 03:54:58,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 227. [2020-11-07 03:54:58,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-11-07 03:54:58,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 241 transitions. [2020-11-07 03:54:58,231 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 241 transitions. Word has length 162 [2020-11-07 03:54:58,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:54:58,232 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 241 transitions. [2020-11-07 03:54:58,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:54:58,232 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 241 transitions. [2020-11-07 03:54:58,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-11-07 03:54:58,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:54:58,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:54:58,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 03:54:58,235 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 03:54:58,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:54:58,236 INFO L82 PathProgramCache]: Analyzing trace with hash -959869354, now seen corresponding path program 1 times [2020-11-07 03:54:58,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:54:58,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256373506] [2020-11-07 03:54:58,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:54:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,590 WARN L194 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:54:58,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:54:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:54:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:54:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:54:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:54:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 03:54:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:54:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:54:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 03:54:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-11-07 03:54:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:58,816 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 03:54:58,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256373506] [2020-11-07 03:54:58,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:54:58,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 03:54:58,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145155356] [2020-11-07 03:54:58,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 03:54:58,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:54:58,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 03:54:58,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 03:54:58,820 INFO L87 Difference]: Start difference. First operand 227 states and 241 transitions. Second operand 7 states. [2020-11-07 03:54:59,409 WARN L194 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:01,158 WARN L194 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:01,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:01,918 INFO L93 Difference]: Finished difference Result 567 states and 670 transitions. [2020-11-07 03:55:01,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 03:55:01,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-11-07 03:55:01,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:01,927 INFO L225 Difference]: With dead ends: 567 [2020-11-07 03:55:01,927 INFO L226 Difference]: Without dead ends: 455 [2020-11-07 03:55:01,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-11-07 03:55:01,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2020-11-07 03:55:02,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 326. [2020-11-07 03:55:02,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-11-07 03:55:02,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 350 transitions. [2020-11-07 03:55:02,106 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 350 transitions. Word has length 170 [2020-11-07 03:55:02,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:02,107 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 350 transitions. [2020-11-07 03:55:02,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 03:55:02,107 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 350 transitions. [2020-11-07 03:55:02,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-11-07 03:55:02,110 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:02,110 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:02,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 03:55:02,111 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 03:55:02,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:02,111 INFO L82 PathProgramCache]: Analyzing trace with hash 963333066, now seen corresponding path program 1 times [2020-11-07 03:55:02,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:02,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400905099] [2020-11-07 03:55:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,419 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:02,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 03:55:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:55:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 03:55:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-11-07 03:55:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,716 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 03:55:02,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400905099] [2020-11-07 03:55:02,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:02,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:55:02,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941659875] [2020-11-07 03:55:02,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:55:02,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:02,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:55:02,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:55:02,720 INFO L87 Difference]: Start difference. First operand 326 states and 350 transitions. Second operand 10 states. [2020-11-07 03:55:03,287 WARN L194 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:04,400 WARN L194 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:04,694 WARN L194 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:05,015 WARN L194 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:05,305 WARN L194 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:05,637 WARN L194 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-07 03:55:05,914 WARN L194 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:07,834 INFO L93 Difference]: Finished difference Result 927 states and 1135 transitions. [2020-11-07 03:55:07,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 03:55:07,836 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-11-07 03:55:07,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:07,842 INFO L225 Difference]: With dead ends: 927 [2020-11-07 03:55:07,842 INFO L226 Difference]: Without dead ends: 716 [2020-11-07 03:55:07,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-11-07 03:55:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-07 03:55:08,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 503. [2020-11-07 03:55:08,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-11-07 03:55:08,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 552 transitions. [2020-11-07 03:55:08,087 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 552 transitions. Word has length 194 [2020-11-07 03:55:08,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:08,087 INFO L481 AbstractCegarLoop]: Abstraction has 503 states and 552 transitions. [2020-11-07 03:55:08,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:55:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 552 transitions. [2020-11-07 03:55:08,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-11-07 03:55:08,090 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:08,091 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:08,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 03:55:08,091 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 03:55:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:08,092 INFO L82 PathProgramCache]: Analyzing trace with hash 754984295, now seen corresponding path program 1 times [2020-11-07 03:55:08,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:08,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387084684] [2020-11-07 03:55:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,425 WARN L194 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:08,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 03:55:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:55:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 03:55:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-11-07 03:55:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,667 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 03:55:08,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387084684] [2020-11-07 03:55:08,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:08,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:55:08,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121319351] [2020-11-07 03:55:08,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:55:08,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:08,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:55:08,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:55:08,671 INFO L87 Difference]: Start difference. First operand 503 states and 552 transitions. Second operand 10 states. [2020-11-07 03:55:09,277 WARN L194 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:10,814 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:11,110 WARN L194 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:11,421 WARN L194 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:11,703 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:11,987 WARN L194 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:12,265 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:12,547 WARN L194 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:12,962 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:14,496 INFO L93 Difference]: Finished difference Result 1601 states and 1975 transitions. [2020-11-07 03:55:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 03:55:14,497 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-11-07 03:55:14,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:14,508 INFO L225 Difference]: With dead ends: 1601 [2020-11-07 03:55:14,508 INFO L226 Difference]: Without dead ends: 1213 [2020-11-07 03:55:14,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-07 03:55:14,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-11-07 03:55:14,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 829. [2020-11-07 03:55:14,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-11-07 03:55:14,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 918 transitions. [2020-11-07 03:55:14,943 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 918 transitions. Word has length 194 [2020-11-07 03:55:14,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:14,943 INFO L481 AbstractCegarLoop]: Abstraction has 829 states and 918 transitions. [2020-11-07 03:55:14,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:55:14,944 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 918 transitions. [2020-11-07 03:55:14,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-11-07 03:55:14,948 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:14,948 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:14,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 03:55:14,948 INFO L429 AbstractCegarLoop]: === Iteration 7 === [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 03:55:14,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:14,949 INFO L82 PathProgramCache]: Analyzing trace with hash -712463800, now seen corresponding path program 1 times [2020-11-07 03:55:14,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:14,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124545337] [2020-11-07 03:55:14,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,287 WARN L194 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:15,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 03:55:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-07 03:55:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-11-07 03:55:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-11-07 03:55:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:15,485 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 03:55:15,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124545337] [2020-11-07 03:55:15,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:15,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 03:55:15,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144865112] [2020-11-07 03:55:15,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 03:55:15,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:15,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 03:55:15,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-07 03:55:15,488 INFO L87 Difference]: Start difference. First operand 829 states and 918 transitions. Second operand 11 states. [2020-11-07 03:55:16,059 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:17,714 WARN L194 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:18,052 WARN L194 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:18,336 WARN L194 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:18,634 WARN L194 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:18,949 WARN L194 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:19,257 WARN L194 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:19,513 WARN L194 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:19,881 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:21,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:21,629 INFO L93 Difference]: Finished difference Result 1459 states and 1834 transitions. [2020-11-07 03:55:21,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-07 03:55:21,629 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-11-07 03:55:21,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:21,640 INFO L225 Difference]: With dead ends: 1459 [2020-11-07 03:55:21,640 INFO L226 Difference]: Without dead ends: 1455 [2020-11-07 03:55:21,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-11-07 03:55:21,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2020-11-07 03:55:22,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 829. [2020-11-07 03:55:22,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-11-07 03:55:22,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 916 transitions. [2020-11-07 03:55:22,137 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 916 transitions. Word has length 199 [2020-11-07 03:55:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:22,138 INFO L481 AbstractCegarLoop]: Abstraction has 829 states and 916 transitions. [2020-11-07 03:55:22,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 03:55:22,138 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 916 transitions. [2020-11-07 03:55:22,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-11-07 03:55:22,145 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:22,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:22,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 03:55:22,146 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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 03:55:22,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:22,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1672080698, now seen corresponding path program 1 times [2020-11-07 03:55:22,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:22,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835471037] [2020-11-07 03:55:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,453 WARN L194 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:22,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 03:55:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-07 03:55:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-11-07 03:55:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-11-07 03:55:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:22,649 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 03:55:22,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835471037] [2020-11-07 03:55:22,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:22,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 03:55:22,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745988875] [2020-11-07 03:55:22,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 03:55:22,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:22,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 03:55:22,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-07 03:55:22,651 INFO L87 Difference]: Start difference. First operand 829 states and 916 transitions. Second operand 11 states. [2020-11-07 03:55:23,976 WARN L194 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:24,278 WARN L194 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:24,586 WARN L194 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 03:55:24,881 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:25,182 WARN L194 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:25,469 WARN L194 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:27,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:27,234 INFO L93 Difference]: Finished difference Result 2191 states and 2695 transitions. [2020-11-07 03:55:27,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 03:55:27,235 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 200 [2020-11-07 03:55:27,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:27,245 INFO L225 Difference]: With dead ends: 2191 [2020-11-07 03:55:27,245 INFO L226 Difference]: Without dead ends: 1477 [2020-11-07 03:55:27,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-11-07 03:55:27,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2020-11-07 03:55:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 861. [2020-11-07 03:55:27,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-11-07 03:55:27,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 948 transitions. [2020-11-07 03:55:27,674 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 948 transitions. Word has length 200 [2020-11-07 03:55:27,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:27,675 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 948 transitions. [2020-11-07 03:55:27,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 03:55:27,675 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 948 transitions. [2020-11-07 03:55:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-11-07 03:55:27,678 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:27,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:27,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 03:55:27,678 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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 03:55:27,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:27,679 INFO L82 PathProgramCache]: Analyzing trace with hash 532286874, now seen corresponding path program 1 times [2020-11-07 03:55:27,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:27,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940368059] [2020-11-07 03:55:27,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:27,960 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:27,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:27,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:27,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:27,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:28,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:28,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:28,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 03:55:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:28,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-11-07 03:55:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:28,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:28,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:28,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:28,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-11-07 03:55:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:28,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-11-07 03:55:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:28,158 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 03:55:28,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940368059] [2020-11-07 03:55:28,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:28,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-07 03:55:28,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013972135] [2020-11-07 03:55:28,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 03:55:28,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:28,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 03:55:28,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-11-07 03:55:28,161 INFO L87 Difference]: Start difference. First operand 861 states and 948 transitions. Second operand 14 states. [2020-11-07 03:55:28,805 WARN L194 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:29,103 WARN L194 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:29,403 WARN L194 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:29,690 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:29,963 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:30,857 WARN L194 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:31,154 WARN L194 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:31,442 WARN L194 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:31,745 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:32,030 WARN L194 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:33,788 INFO L93 Difference]: Finished difference Result 1863 states and 2256 transitions. [2020-11-07 03:55:33,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-07 03:55:33,794 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 200 [2020-11-07 03:55:33,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:33,801 INFO L225 Difference]: With dead ends: 1863 [2020-11-07 03:55:33,801 INFO L226 Difference]: Without dead ends: 1117 [2020-11-07 03:55:33,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-11-07 03:55:33,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2020-11-07 03:55:34,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 703. [2020-11-07 03:55:34,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2020-11-07 03:55:34,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 756 transitions. [2020-11-07 03:55:34,156 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 756 transitions. Word has length 200 [2020-11-07 03:55:34,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:34,157 INFO L481 AbstractCegarLoop]: Abstraction has 703 states and 756 transitions. [2020-11-07 03:55:34,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 03:55:34,157 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 756 transitions. [2020-11-07 03:55:34,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-11-07 03:55:34,159 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:34,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:34,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 03:55:34,160 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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 03:55:34,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:34,161 INFO L82 PathProgramCache]: Analyzing trace with hash -387097581, now seen corresponding path program 1 times [2020-11-07 03:55:34,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:34,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318548429] [2020-11-07 03:55:34,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:55:34,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:55:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:55:34,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:55:34,578 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 03:55:34,579 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 03:55:34,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 03:55:34,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:55:34 BoogieIcfgContainer [2020-11-07 03:55:34,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 03:55:34,887 INFO L168 Benchmark]: Toolchain (without parser) took 48522.24 ms. Allocated memory was 160.4 MB in the beginning and 767.6 MB in the end (delta: 607.1 MB). Free memory was 136.6 MB in the beginning and 515.3 MB in the end (delta: -378.7 MB). Peak memory consumption was 229.5 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:34,888 INFO L168 Benchmark]: CDTParser took 1.07 ms. Allocated memory is still 160.4 MB. Free memory is still 133.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 03:55:34,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.45 ms. Allocated memory is still 160.4 MB. Free memory was 136.0 MB in the beginning and 115.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:34,889 INFO L168 Benchmark]: Boogie Preprocessor took 123.66 ms. Allocated memory is still 160.4 MB. Free memory was 115.8 MB in the beginning and 111.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:34,890 INFO L168 Benchmark]: RCFGBuilder took 1413.20 ms. Allocated memory was 160.4 MB in the beginning and 202.4 MB in the end (delta: 41.9 MB). Free memory was 111.8 MB in the beginning and 171.8 MB in the end (delta: -59.9 MB). Peak memory consumption was 61.3 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:34,891 INFO L168 Benchmark]: TraceAbstraction took 46368.93 ms. Allocated memory was 202.4 MB in the beginning and 767.6 MB in the end (delta: 565.2 MB). Free memory was 171.8 MB in the beginning and 515.3 MB in the end (delta: -343.5 MB). Peak memory consumption was 221.6 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:34,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07 ms. Allocated memory is still 160.4 MB. Free memory is still 133.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 599.45 ms. Allocated memory is still 160.4 MB. Free memory was 136.0 MB in the beginning and 115.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.66 ms. Allocated memory is still 160.4 MB. Free memory was 115.8 MB in the beginning and 111.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1413.20 ms. Allocated memory was 160.4 MB in the beginning and 202.4 MB in the end (delta: 41.9 MB). Free memory was 111.8 MB in the beginning and 171.8 MB in the end (delta: -59.9 MB). Peak memory consumption was 61.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 46368.93 ms. Allocated memory was 202.4 MB in the beginning and 767.6 MB in the end (delta: 565.2 MB). Free memory was 171.8 MB in the beginning and 515.3 MB in the end (delta: -343.5 MB). Peak memory consumption was 221.6 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: [L42] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={182:166}, methaneLevelCritical=145, pumpRunning=134, systemActive=133, waterLevel=139] [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=134, systemActive=133, waterLevel=139] [L526] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=134, systemActive=133, waterLevel=1] [L527] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=134, systemActive=133, waterLevel=1] [L691] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=133, waterLevel=1] [L692] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] 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] [L124] 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] [L128] 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] [L129] 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] [L130] 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] [L904] 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] [L907] 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] [L908] 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] [L130] 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] [L130] 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] [L132] 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] [L134] 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] [L135] 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] [L114] 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] [L622] 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] [L623] 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] [L624] 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] [L625] 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] [L626] 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] [L629] 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] [L631] 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] [L633] 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] [L639] 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] [L641] 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] [L643] 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] [L544] 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] [L545] 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] [L643] 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] [L649] tmp___0 = __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=1, waterLevel=2] [L651] COND TRUE \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=1, waterLevel=2] [L653] CALL changeMethaneLevel() 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] [L556] COND FALSE !(\read(methaneLevelCritical)) 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] [L559] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L653] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L659] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L661] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L663] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L847] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L663] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L676] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L699] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L706] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L708] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L728] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L731] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L733] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L825] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L826] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L827] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L831] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L606] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L609] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L613] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L614] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L831] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L831] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L833] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L836] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L838] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L839] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L733] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L733] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L735] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L737] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L756] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L737] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L708] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L714] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L853] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L854] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L858] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L565] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L568] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L569] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L858] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L858] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L860] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L862] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L780] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L783] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L784] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L862] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L862] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L864] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L866] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L516] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product34.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 623 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 45.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 37.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1979 SDtfs, 4428 SDslu, 4749 SDs, 0 SdLazy, 8527 SolverSat, 1214 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 379 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 16.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=861occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 2510 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1821 NumberOfCodeBlocks, 1821 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1607 ConstructedInterpolants, 0 QuantifiedInterpolants, 729806 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...