/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:21:31,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:21:31,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:21:31,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:21:31,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:21:31,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:21:31,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:21:31,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:21:31,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:21:31,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:21:31,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:21:31,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:21:31,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:21:31,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:21:31,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:21:31,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:21:31,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:21:31,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:21:31,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:21:31,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:21:31,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:21:31,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:21:31,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:21:31,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:21:31,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:21:31,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:21:31,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:21:31,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:21:31,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:21:31,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:21:31,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:21:31,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:21:31,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:21:31,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:21:31,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:21:31,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:21:31,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:21:31,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:21:31,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:21:31,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:21:31,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:21:31,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:21:31,265 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:21:31,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:21:31,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:21:31,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:21:31,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:21:31,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:21:31,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:21:31,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:21:31,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:21:31,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:21:31,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:21:31,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:21:31,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:21:31,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:21:31,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:21:31,277 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:21:31,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:21:31,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:21:31,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:21:31,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:21:31,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:21:31,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:21:31,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:21:31,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:21:31,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:21:31,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:21:31,710 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:21:31,711 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:21:31,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c [2020-10-23 20:21:31,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4b3d6dd/7ef859f0dbb24a7eac2c608e76e7d1da/FLAGcba8e4d7a [2020-10-23 20:21:32,623 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:21:32,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c [2020-10-23 20:21:32,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4b3d6dd/7ef859f0dbb24a7eac2c608e76e7d1da/FLAGcba8e4d7a [2020-10-23 20:21:32,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d4b3d6dd/7ef859f0dbb24a7eac2c608e76e7d1da [2020-10-23 20:21:32,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:21:32,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:21:32,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:21:32,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:21:32,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:21:32,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:21:32" (1/1) ... [2020-10-23 20:21:32,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af28c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:32, skipping insertion in model container [2020-10-23 20:21:32,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:21:32" (1/1) ... [2020-10-23 20:21:32,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:21:33,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:21:33,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:21:33,327 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:21:33,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:21:33,549 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:21:33,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:33 WrapperNode [2020-10-23 20:21:33,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:21:33,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:21:33,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:21:33,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:21:33,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:33" (1/1) ... [2020-10-23 20:21:33,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:33" (1/1) ... [2020-10-23 20:21:33,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:33" (1/1) ... [2020-10-23 20:21:33,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:33" (1/1) ... [2020-10-23 20:21:33,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:33" (1/1) ... [2020-10-23 20:21:33,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:33" (1/1) ... [2020-10-23 20:21:33,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:33" (1/1) ... [2020-10-23 20:21:33,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:21:33,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:21:33,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:21:33,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:21:33,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:21:33,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:21:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:21:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:21:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:21:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:21:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:21:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:21:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:21:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:21:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:21:33,764 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:21:33,764 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:21:33,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:21:33,764 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:21:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:21:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:21:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:21:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:21:33,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:21:33,767 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:21:33,768 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:21:33,768 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:21:33,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:21:33,771 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:21:33,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:21:33,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:21:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:21:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:21:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:21:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:21:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:21:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:21:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:21:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:21:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:21:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:21:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:21:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:21:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:21:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:21:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:21:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:21:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:21:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:21:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:21:33,775 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:21:33,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:21:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:21:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:21:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:21:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:21:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:21:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:21:33,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:21:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:21:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:21:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:21:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:21:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:21:33,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:21:33,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:21:33,778 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:21:33,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:21:33,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:21:33,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:21:33,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:21:33,779 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:21:33,779 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:21:33,779 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:21:33,779 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:21:33,780 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:21:33,780 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:21:33,780 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:21:33,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:21:33,780 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:21:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:21:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:21:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:21:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:21:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:21:33,782 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:21:33,782 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:21:33,783 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:21:33,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:21:33,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:21:33,783 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:21:33,784 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:21:33,785 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:21:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:21:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:21:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:21:33,786 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:21:33,787 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:21:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:21:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:21:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:21:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:21:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 20:21:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:21:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:21:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:21:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:21:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:21:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:21:35,318 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:21:35,319 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:21:35,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:21:35 BoogieIcfgContainer [2020-10-23 20:21:35,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:21:35,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:21:35,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:21:35,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:21:35,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:21:32" (1/3) ... [2020-10-23 20:21:35,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161f5c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:21:35, skipping insertion in model container [2020-10-23 20:21:35,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:33" (2/3) ... [2020-10-23 20:21:35,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161f5c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:21:35, skipping insertion in model container [2020-10-23 20:21:35,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:21:35" (3/3) ... [2020-10-23 20:21:35,333 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2020-10-23 20:21:35,347 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:21:35,353 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:21:35,368 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:21:35,393 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:21:35,393 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:21:35,393 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:21:35,393 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:21:35,393 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:21:35,393 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:21:35,393 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:21:35,394 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:21:35,418 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states. [2020-10-23 20:21:35,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:21:35,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:21:35,440 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:21:35,441 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:21:35,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:21:35,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1419994829, now seen corresponding path program 1 times [2020-10-23 20:21:35,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:21:35,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316471539] [2020-10-23 20:21:35,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:21:35,540 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:21:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,340 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:21:36,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:21:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:21:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:21:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:21:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:21:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:21:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:21:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:21:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:21:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:21:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:36,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:21:36,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316471539] [2020-10-23 20:21:36,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:21:36,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:21:36,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356791313] [2020-10-23 20:21:36,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:21:36,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:21:36,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:21:36,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:21:36,561 INFO L87 Difference]: Start difference. First operand 344 states. Second operand 4 states. [2020-10-23 20:21:38,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:21:38,666 INFO L93 Difference]: Finished difference Result 542 states and 637 transitions. [2020-10-23 20:21:38,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:21:38,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-23 20:21:38,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:21:38,688 INFO L225 Difference]: With dead ends: 542 [2020-10-23 20:21:38,689 INFO L226 Difference]: Without dead ends: 339 [2020-10-23 20:21:38,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:21:38,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-23 20:21:38,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 290. [2020-10-23 20:21:38,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-23 20:21:38,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 316 transitions. [2020-10-23 20:21:38,899 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 316 transitions. Word has length 166 [2020-10-23 20:21:38,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:21:38,900 INFO L481 AbstractCegarLoop]: Abstraction has 290 states and 316 transitions. [2020-10-23 20:21:38,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:21:38,901 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 316 transitions. [2020-10-23 20:21:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:21:38,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:21:38,906 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:21:38,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:21:38,907 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:21:38,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:21:38,908 INFO L82 PathProgramCache]: Analyzing trace with hash 54479695, now seen corresponding path program 1 times [2020-10-23 20:21:38,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:21:38,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420794410] [2020-10-23 20:21:38,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:21:38,913 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:21:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,456 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:21:39,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:21:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:21:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:21:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:21:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:21:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:21:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:21:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:21:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:21:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:21:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:39,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:21:39,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420794410] [2020-10-23 20:21:39,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:21:39,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 20:21:39,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429604816] [2020-10-23 20:21:39,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 20:21:39,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:21:39,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 20:21:39,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:21:39,606 INFO L87 Difference]: Start difference. First operand 290 states and 316 transitions. Second operand 5 states. [2020-10-23 20:21:40,541 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:21:41,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:21:41,962 INFO L93 Difference]: Finished difference Result 458 states and 517 transitions. [2020-10-23 20:21:41,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:21:41,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-23 20:21:41,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:21:41,975 INFO L225 Difference]: With dead ends: 458 [2020-10-23 20:21:41,975 INFO L226 Difference]: Without dead ends: 328 [2020-10-23 20:21:41,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:21:41,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-10-23 20:21:42,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 280. [2020-10-23 20:21:42,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-23 20:21:42,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 303 transitions. [2020-10-23 20:21:42,123 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 303 transitions. Word has length 167 [2020-10-23 20:21:42,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:21:42,123 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 303 transitions. [2020-10-23 20:21:42,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 20:21:42,124 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 303 transitions. [2020-10-23 20:21:42,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-23 20:21:42,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:21:42,127 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:21:42,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:21:42,127 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:21:42,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:21:42,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1643461323, now seen corresponding path program 1 times [2020-10-23 20:21:42,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:21:42,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422445763] [2020-10-23 20:21:42,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:21:42,133 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:21:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,585 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:21:42,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:21:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:21:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:21:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:21:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:21:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:21:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:21:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:21:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:21:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 20:21:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-23 20:21:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:21:42,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422445763] [2020-10-23 20:21:42,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:21:42,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 20:21:42,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858673612] [2020-10-23 20:21:42,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 20:21:42,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:21:42,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 20:21:42,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:21:42,858 INFO L87 Difference]: Start difference. First operand 280 states and 303 transitions. Second operand 11 states. [2020-10-23 20:21:43,611 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:21:44,114 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:21:44,525 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 20:21:44,970 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:21:45,403 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:21:45,821 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:21:47,424 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:21:50,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:21:50,597 INFO L93 Difference]: Finished difference Result 768 states and 893 transitions. [2020-10-23 20:21:50,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 20:21:50,600 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180 [2020-10-23 20:21:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:21:50,612 INFO L225 Difference]: With dead ends: 768 [2020-10-23 20:21:50,612 INFO L226 Difference]: Without dead ends: 608 [2020-10-23 20:21:50,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2020-10-23 20:21:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-10-23 20:21:50,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 507. [2020-10-23 20:21:50,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-10-23 20:21:50,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 569 transitions. [2020-10-23 20:21:50,860 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 569 transitions. Word has length 180 [2020-10-23 20:21:50,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:21:50,861 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 569 transitions. [2020-10-23 20:21:50,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 20:21:50,861 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 569 transitions. [2020-10-23 20:21:50,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-23 20:21:50,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:21:50,865 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:21:50,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:21:50,865 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:21:50,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:21:50,866 INFO L82 PathProgramCache]: Analyzing trace with hash -94671, now seen corresponding path program 1 times [2020-10-23 20:21:50,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:21:50,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961544799] [2020-10-23 20:21:50,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:21:50,871 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:21:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,328 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:21:51,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:21:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:21:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:21:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:21:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:21:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:21:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 20:21:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:21:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:21:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-23 20:21:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-23 20:21:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 20:21:51,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961544799] [2020-10-23 20:21:51,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:21:51,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:21:51,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596596168] [2020-10-23 20:21:51,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:21:51,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:21:51,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:21:51,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:21:51,587 INFO L87 Difference]: Start difference. First operand 507 states and 569 transitions. Second operand 10 states. [2020-10-23 20:21:52,293 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:21:53,441 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:21:53,857 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:21:55,190 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:21:55,596 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:21:56,086 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:21:56,510 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:21:57,001 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:21:57,414 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:21:58,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:21:58,619 INFO L93 Difference]: Finished difference Result 1159 states and 1390 transitions. [2020-10-23 20:21:58,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 20:21:58,620 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2020-10-23 20:21:58,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:21:58,626 INFO L225 Difference]: With dead ends: 1159 [2020-10-23 20:21:58,626 INFO L226 Difference]: Without dead ends: 772 [2020-10-23 20:21:58,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 20:21:58,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2020-10-23 20:21:58,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 679. [2020-10-23 20:21:58,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2020-10-23 20:21:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 765 transitions. [2020-10-23 20:21:58,900 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 765 transitions. Word has length 185 [2020-10-23 20:21:58,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:21:58,901 INFO L481 AbstractCegarLoop]: Abstraction has 679 states and 765 transitions. [2020-10-23 20:21:58,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:21:58,901 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 765 transitions. [2020-10-23 20:21:58,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-23 20:21:58,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:21:58,906 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:21:58,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:21:58,906 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:21:58,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:21:58,907 INFO L82 PathProgramCache]: Analyzing trace with hash -883161186, now seen corresponding path program 1 times [2020-10-23 20:21:58,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:21:58,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081029015] [2020-10-23 20:21:58,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:21:58,912 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:21:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,300 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:21:59,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:21:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:21:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:21:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:21:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:21:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:21:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:21:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:21:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:21:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:21:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:21:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:21:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:21:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:21:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-23 20:21:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 20:21:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:21:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:21:59,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081029015] [2020-10-23 20:21:59,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:21:59,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 20:21:59,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975484396] [2020-10-23 20:21:59,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 20:21:59,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:21:59,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 20:21:59,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:21:59,582 INFO L87 Difference]: Start difference. First operand 679 states and 765 transitions. Second operand 11 states. [2020-10-23 20:22:01,576 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:02,008 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:22:02,464 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 20:22:02,882 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:03,303 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:03,699 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:05,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:05,127 INFO L93 Difference]: Finished difference Result 1446 states and 1734 transitions. [2020-10-23 20:22:05,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:22:05,128 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 218 [2020-10-23 20:22:05,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:05,135 INFO L225 Difference]: With dead ends: 1446 [2020-10-23 20:22:05,135 INFO L226 Difference]: Without dead ends: 887 [2020-10-23 20:22:05,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 20:22:05,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-10-23 20:22:05,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 698. [2020-10-23 20:22:05,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2020-10-23 20:22:05,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 785 transitions. [2020-10-23 20:22:05,417 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 785 transitions. Word has length 218 [2020-10-23 20:22:05,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:05,418 INFO L481 AbstractCegarLoop]: Abstraction has 698 states and 785 transitions. [2020-10-23 20:22:05,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 20:22:05,418 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 785 transitions. [2020-10-23 20:22:05,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-23 20:22:05,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:05,422 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:05,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:22:05,423 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:22:05,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:05,424 INFO L82 PathProgramCache]: Analyzing trace with hash -469529794, now seen corresponding path program 1 times [2020-10-23 20:22:05,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:05,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684014940] [2020-10-23 20:22:05,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:05,428 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,857 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:05,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:22:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:22:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:05,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:22:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:06,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:06,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:06,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:06,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:06,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-23 20:22:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:06,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 20:22:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:06,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684014940] [2020-10-23 20:22:06,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:06,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:22:06,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964716058] [2020-10-23 20:22:06,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:22:06,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:06,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:22:06,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:22:06,175 INFO L87 Difference]: Start difference. First operand 698 states and 785 transitions. Second operand 14 states. [2020-10-23 20:22:06,971 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:07,362 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:22:07,780 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:08,217 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:08,600 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:10,038 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:10,456 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:10,876 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:11,344 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:22:11,737 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:13,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:13,756 INFO L93 Difference]: Finished difference Result 1487 states and 1801 transitions. [2020-10-23 20:22:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 20:22:13,757 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 218 [2020-10-23 20:22:13,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:13,763 INFO L225 Difference]: With dead ends: 1487 [2020-10-23 20:22:13,763 INFO L226 Difference]: Without dead ends: 909 [2020-10-23 20:22:13,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 20:22:13,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-10-23 20:22:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 710. [2020-10-23 20:22:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2020-10-23 20:22:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 797 transitions. [2020-10-23 20:22:14,039 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 797 transitions. Word has length 218 [2020-10-23 20:22:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:14,040 INFO L481 AbstractCegarLoop]: Abstraction has 710 states and 797 transitions. [2020-10-23 20:22:14,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:22:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 797 transitions. [2020-10-23 20:22:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-23 20:22:14,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:14,045 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:14,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:22:14,046 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]=== [2020-10-23 20:22:14,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:14,046 INFO L82 PathProgramCache]: Analyzing trace with hash -539047903, now seen corresponding path program 1 times [2020-10-23 20:22:14,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:14,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465550723] [2020-10-23 20:22:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:14,050 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,454 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:14,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 20:22:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:22:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:22:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-23 20:22:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-23 20:22:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:14,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465550723] [2020-10-23 20:22:14,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:14,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 20:22:14,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714057326] [2020-10-23 20:22:14,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 20:22:14,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:14,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 20:22:14,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 20:22:14,704 INFO L87 Difference]: Start difference. First operand 710 states and 797 transitions. Second operand 8 states. [2020-10-23 20:22:15,388 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:16,205 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:20,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:20,253 INFO L93 Difference]: Finished difference Result 2257 states and 2762 transitions. [2020-10-23 20:22:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-23 20:22:20,253 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2020-10-23 20:22:20,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:20,264 INFO L225 Difference]: With dead ends: 2257 [2020-10-23 20:22:20,265 INFO L226 Difference]: Without dead ends: 1667 [2020-10-23 20:22:20,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-10-23 20:22:20,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2020-10-23 20:22:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1398. [2020-10-23 20:22:20,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2020-10-23 20:22:20,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1594 transitions. [2020-10-23 20:22:20,962 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1594 transitions. Word has length 218 [2020-10-23 20:22:20,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:20,963 INFO L481 AbstractCegarLoop]: Abstraction has 1398 states and 1594 transitions. [2020-10-23 20:22:20,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 20:22:20,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1594 transitions. [2020-10-23 20:22:20,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-23 20:22:20,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:20,967 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:20,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:22:20,967 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]=== [2020-10-23 20:22:20,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:20,968 INFO L82 PathProgramCache]: Analyzing trace with hash 251323339, now seen corresponding path program 1 times [2020-10-23 20:22:20,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:20,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230547092] [2020-10-23 20:22:20,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:20,972 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:22:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,593 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:22:21,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:22:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:22:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:22:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:22:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:22:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:22:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:22:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:22:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:22:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 20:22:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:22:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:22:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:22:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-23 20:22:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-23 20:22:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:22:21,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:22:21,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230547092] [2020-10-23 20:22:21,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:22:21,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:22:21,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641523816] [2020-10-23 20:22:21,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:22:21,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:22:21,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:22:21,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:22:21,943 INFO L87 Difference]: Start difference. First operand 1398 states and 1594 transitions. Second operand 15 states. [2020-10-23 20:22:23,120 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-23 20:22:24,318 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:26,186 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2020-10-23 20:22:27,029 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2020-10-23 20:22:27,558 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:27,997 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:28,870 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 210 [2020-10-23 20:22:29,302 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:29,802 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:22:30,245 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:34,546 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:22:35,583 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:22:36,010 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:22:36,431 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:22:38,001 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-23 20:22:38,770 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:22:39,599 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-23 20:22:40,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:22:40,713 INFO L93 Difference]: Finished difference Result 4280 states and 5255 transitions. [2020-10-23 20:22:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-23 20:22:40,714 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 223 [2020-10-23 20:22:40,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:22:40,737 INFO L225 Difference]: With dead ends: 4280 [2020-10-23 20:22:40,737 INFO L226 Difference]: Without dead ends: 3283 [2020-10-23 20:22:40,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=816, Invalid=3216, Unknown=0, NotChecked=0, Total=4032 [2020-10-23 20:22:40,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states. [2020-10-23 20:22:42,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 2571. [2020-10-23 20:22:42,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2571 states. [2020-10-23 20:22:42,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 2913 transitions. [2020-10-23 20:22:42,226 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 2913 transitions. Word has length 223 [2020-10-23 20:22:42,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:22:42,227 INFO L481 AbstractCegarLoop]: Abstraction has 2571 states and 2913 transitions. [2020-10-23 20:22:42,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:22:42,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 2913 transitions. [2020-10-23 20:22:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-23 20:22:42,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:22:42,234 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:22:42,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 20:22:42,234 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]=== [2020-10-23 20:22:42,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:22:42,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1721034846, now seen corresponding path program 1 times [2020-10-23 20:22:42,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:22:42,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876053222] [2020-10-23 20:22:42,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:22:42,587 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2020-10-23 20:22:43,004 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 74 [2020-10-23 20:22:43,381 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2020-10-23 20:22:43,788 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-10-23 20:22:44,164 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-10-23 20:22:44,519 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-23 20:22:44,899 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2020-10-23 20:22:45,290 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2020-10-23 20:22:45,683 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-10-23 20:22:46,102 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2020-10-23 20:22:46,481 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-23 20:22:46,852 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2020-10-23 20:22:46,958 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-23 20:22:47,227 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2020-10-23 20:22:47,636 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2020-10-23 20:22:47,747 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-23 20:22:48,394 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2020-10-23 20:22:48,989 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2020-10-23 20:22:49,542 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 160 [2020-10-23 20:22:50,096 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 160 [2020-10-23 20:22:50,101 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:22:50,671 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-23 20:22:51,240 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-23 20:22:51,822 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-23 20:22:52,377 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-23 20:22:52,381 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:22:52,946 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:22:53,514 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:22:54,107 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:22:54,709 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:22:54,712 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:22:55,600 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208 [2020-10-23 20:22:56,500 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 208 [2020-10-23 20:22:56,513 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:22:57,285 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:22:58,061 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:22:58,067 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:22:58,822 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:22:59,579 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:22:59,595 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:00,333 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:23:01,068 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2020-10-23 20:23:01,075 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:01,664 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:23:02,241 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:23:02,820 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:23:03,396 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:23:03,399 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:04,213 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2020-10-23 20:23:05,048 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2020-10-23 20:23:05,061 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:05,610 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-23 20:23:06,171 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-23 20:23:06,765 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-23 20:23:07,329 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 163 [2020-10-23 20:23:07,333 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:08,178 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:23:08,985 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:23:08,989 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:09,750 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2020-10-23 20:23:10,585 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 212 [2020-10-23 20:23:10,595 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:11,401 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 212 [2020-10-23 20:23:12,170 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 212 [2020-10-23 20:23:12,181 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:12,700 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 158 [2020-10-23 20:23:13,264 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 159 [2020-10-23 20:23:13,837 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 158 [2020-10-23 20:23:14,416 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 159 [2020-10-23 20:23:14,419 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:23:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:23:14,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:23:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:23:14,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:23:14,969 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:23:14,969 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:23:14,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 20:23:15,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:23:15 BoogieIcfgContainer [2020-10-23 20:23:15,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:23:15,016 INFO L168 Benchmark]: Toolchain (without parser) took 102092.83 ms. Allocated memory was 163.6 MB in the beginning and 933.2 MB in the end (delta: 769.7 MB). Free memory was 138.3 MB in the beginning and 782.9 MB in the end (delta: -644.5 MB). Peak memory consumption was 126.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:15,016 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory was 82.6 MB in the beginning and 82.2 MB in the end (delta: 361.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:23:15,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.55 ms. Allocated memory is still 163.6 MB. Free memory was 137.7 MB in the beginning and 115.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:15,018 INFO L168 Benchmark]: Boogie Preprocessor took 105.11 ms. Allocated memory is still 163.6 MB. Free memory was 115.7 MB in the beginning and 111.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:15,018 INFO L168 Benchmark]: RCFGBuilder took 1664.65 ms. Allocated memory is still 163.6 MB. Free memory was 111.8 MB in the beginning and 133.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 64.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:15,019 INFO L168 Benchmark]: TraceAbstraction took 99689.53 ms. Allocated memory was 163.6 MB in the beginning and 933.2 MB in the end (delta: 769.7 MB). Free memory was 133.0 MB in the beginning and 782.9 MB in the end (delta: -649.8 MB). Peak memory consumption was 119.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:15,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory was 82.6 MB in the beginning and 82.2 MB in the end (delta: 361.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 620.55 ms. Allocated memory is still 163.6 MB. Free memory was 137.7 MB in the beginning and 115.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 105.11 ms. Allocated memory is still 163.6 MB. Free memory was 115.7 MB in the beginning and 111.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1664.65 ms. Allocated memory is still 163.6 MB. Free memory was 111.8 MB in the beginning and 133.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 64.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 99689.53 ms. Allocated memory was 163.6 MB in the beginning and 933.2 MB in the end (delta: 769.7 MB). Free memory was 133.0 MB in the beginning and 782.9 MB in the end (delta: -649.8 MB). Peak memory consumption was 119.8 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L525] int switchedOnBeforeTS ; [L579] int waterLevel = 1; [L580] int methaneLevelCritical = 0; [L755] int pumpRunning = 0; [L756] int systemActive = 1; [L491] int retValue_acc ; [L492] int tmp ; [L496] FCALL select_helpers() [L497] FCALL select_features() [L498] CALL, EXPR valid_product() [L1004] int retValue_acc ; [L1007] retValue_acc = 1 [L1008] return (retValue_acc); [L498] RET, EXPR valid_product() [L498] tmp = valid_product() [L500] COND TRUE \read(tmp) [L502] FCALL setup() [L503] CALL runTest() [L481] CALL __utac_acc__Specification5_spec__1() [L530] switchedOnBeforeTS = 0 [L481] RET __utac_acc__Specification5_spec__1() [L482] CALL test() [L685] int splverifierCounter ; [L686] int tmp ; [L687] int tmp___0 ; [L688] int tmp___1 ; [L689] int tmp___2 ; [L692] splverifierCounter = 0 [L694] COND TRUE 1 [L696] COND TRUE splverifierCounter < 4 [L702] tmp = __VERIFIER_nondet_int() [L704] COND TRUE \read(tmp) [L706] CALL waterRise() [L597] COND TRUE waterLevel < 2 [L598] waterLevel = waterLevel + 1 [L706] RET waterRise() [L712] tmp___0 = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp___0)) [L722] tmp___2 = __VERIFIER_nondet_int() [L724] COND TRUE \read(tmp___2) [L726] CALL startSystem() [L973] systemActive = 1 [L726] RET startSystem() [L741] CALL timeShift() [L763] CALL __utac_acc__Specification5_spec__2() [L539] CALL, EXPR isPumpRunning() [L872] int retValue_acc ; [L875] retValue_acc = pumpRunning [L876] return (retValue_acc); [L539] RET, EXPR isPumpRunning() [L539] switchedOnBeforeTS = isPumpRunning() [L763] RET __utac_acc__Specification5_spec__2() [L765] COND FALSE !(\read(pumpRunning)) [L772] COND TRUE \read(systemActive) [L774] CALL processEnvironment() [L820] int tmp ; [L823] COND FALSE !(\read(pumpRunning)) [L838] CALL processEnvironment__wrappee__highWaterSensor() [L794] int tmp ; [L797] COND TRUE ! pumpRunning [L799] CALL, EXPR isHighWaterLevel() [L917] int retValue_acc ; [L918] int tmp ; [L919] int tmp___0 ; [L923] CALL, EXPR isHighWaterSensorDry() [L659] int retValue_acc ; [L662] COND FALSE !(waterLevel < 2) [L666] retValue_acc = 0 [L667] return (retValue_acc); [L923] RET, EXPR isHighWaterSensorDry() [L923] tmp = isHighWaterSensorDry() [L925] COND FALSE !(\read(tmp)) [L928] tmp___0 = 1 [L930] retValue_acc = tmp___0 [L931] return (retValue_acc); [L799] RET, EXPR isHighWaterLevel() [L799] tmp = isHighWaterLevel() [L801] COND TRUE \read(tmp) [L803] CALL activatePump() [L848] pumpRunning = 1 [L803] RET activatePump() [L838] RET processEnvironment__wrappee__highWaterSensor() [L774] RET processEnvironment() [L780] CALL __utac_acc__Specification5_spec__3() [L545] int tmp ; [L546] int tmp___0 ; [L550] CALL, EXPR getWaterLevel() [L650] int retValue_acc ; [L653] retValue_acc = waterLevel [L654] return (retValue_acc); [L550] RET, EXPR getWaterLevel() [L550] tmp = getWaterLevel() [L552] COND FALSE !(tmp != 2) [L780] RET __utac_acc__Specification5_spec__3() [L741] RET timeShift() [L694] COND TRUE 1 [L696] COND TRUE splverifierCounter < 4 [L702] tmp = __VERIFIER_nondet_int() [L704] COND FALSE !(\read(tmp)) [L712] tmp___0 = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp___0)) [L722] tmp___2 = __VERIFIER_nondet_int() [L724] COND TRUE \read(tmp___2) [L726] CALL startSystem() [L973] systemActive = 1 [L726] RET startSystem() [L741] CALL timeShift() [L763] CALL __utac_acc__Specification5_spec__2() [L539] CALL, EXPR isPumpRunning() [L872] int retValue_acc ; [L875] retValue_acc = pumpRunning [L876] return (retValue_acc); [L539] RET, EXPR isPumpRunning() [L539] switchedOnBeforeTS = isPumpRunning() [L763] RET __utac_acc__Specification5_spec__2() [L765] COND TRUE \read(pumpRunning) [L767] CALL lowerWaterLevel() [L585] COND TRUE waterLevel > 0 [L586] waterLevel = waterLevel - 1 [L767] RET lowerWaterLevel() [L772] COND TRUE \read(systemActive) [L774] CALL processEnvironment() [L820] int tmp ; [L823] COND TRUE \read(pumpRunning) [L825] CALL, EXPR isLowWaterLevel() [L936] int retValue_acc ; [L937] int tmp ; [L938] int tmp___0 ; [L942] CALL, EXPR isLowWaterSensorDry() [L673] int retValue_acc ; [L676] retValue_acc = waterLevel == 0 [L677] return (retValue_acc); [L942] RET, EXPR isLowWaterSensorDry() [L942] tmp = isLowWaterSensorDry() [L944] COND TRUE \read(tmp) [L945] tmp___0 = 0 [L949] retValue_acc = tmp___0 [L950] return (retValue_acc); [L825] RET, EXPR isLowWaterLevel() [L825] tmp = isLowWaterLevel() [L827] COND FALSE !(\read(tmp)) [L833] CALL processEnvironment__wrappee__highWaterSensor() [L794] int tmp ; [L797] COND FALSE !(! pumpRunning) [L812] FCALL processEnvironment__wrappee__base() [L833] RET processEnvironment__wrappee__highWaterSensor() [L774] RET processEnvironment() [L780] CALL __utac_acc__Specification5_spec__3() [L545] int tmp ; [L546] int tmp___0 ; [L550] CALL, EXPR getWaterLevel() [L650] int retValue_acc ; [L653] retValue_acc = waterLevel [L654] return (retValue_acc); [L550] RET, EXPR getWaterLevel() [L550] tmp = getWaterLevel() [L552] COND TRUE tmp != 2 [L554] CALL, EXPR isPumpRunning() [L872] int retValue_acc ; [L875] retValue_acc = pumpRunning [L876] return (retValue_acc); [L554] RET, EXPR isPumpRunning() [L554] tmp___0 = isPumpRunning() [L556] COND TRUE \read(tmp___0) [L557] COND TRUE ! switchedOnBeforeTS [L559] CALL __automaton_fail() [L518] CALL reach_error() [L3] __assert_fail("0", "minepump_spec5_product52.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 45 procedures, 673 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 99.5s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 56.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2340 SDtfs, 6773 SDslu, 5244 SDs, 0 SdLazy, 11319 SolverSat, 2282 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 448 GetRequests, 264 SyntacticMatches, 3 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1731 ImplicationChecksByTransitivity, 27.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2571occurred 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: 3.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 1660 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...