/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_spec2_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:53:53,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:53:53,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:53:53,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:53:53,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:53:53,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:53:53,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:53:53,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:53:53,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:53:53,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:53:53,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:53:53,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:53:53,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:53:53,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:53:53,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:53:53,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:53:53,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:53:53,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:53:53,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:53:53,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:53:53,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:53:53,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:53:53,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:53:53,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:53:53,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:53:53,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:53:53,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:53:53,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:53:53,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:53:53,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:53:53,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:53:53,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:53:53,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:53:53,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:53:53,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:53:53,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:53:53,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:53:53,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:53:53,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:53:53,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:53:53,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:53:53,586 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 19:53:53,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:53:53,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:53:53,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:53:53,600 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:53:53,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:53:53,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:53:53,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:53:53,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:53:53,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:53:53,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:53:53,602 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:53:53,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:53:53,602 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:53:53,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:53:53,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:53:53,603 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:53:53,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:53:53,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:53:53,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:53:53,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:53:53,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:53:53,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:53:53,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:53:53,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:53:54,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:53:54,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:53:54,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:53:54,036 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:53:54,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-10-23 19:53:54,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02afd8bb/00bf6140114c4b77a5204723bd5adeee/FLAGca7850111 [2020-10-23 19:53:54,912 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:53:54,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-10-23 19:53:54,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02afd8bb/00bf6140114c4b77a5204723bd5adeee/FLAGca7850111 [2020-10-23 19:53:55,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02afd8bb/00bf6140114c4b77a5204723bd5adeee [2020-10-23 19:53:55,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:53:55,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:53:55,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:53:55,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:53:55,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:53:55,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:53:55" (1/1) ... [2020-10-23 19:53:55,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21091437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55, skipping insertion in model container [2020-10-23 19:53:55,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:53:55" (1/1) ... [2020-10-23 19:53:55,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:53:55,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:53:55,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:53:55,676 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:53:55,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:53:55,836 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:53:55,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55 WrapperNode [2020-10-23 19:53:55,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:53:55,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:53:55,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:53:55,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:53:55,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55" (1/1) ... [2020-10-23 19:53:55,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55" (1/1) ... [2020-10-23 19:53:55,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55" (1/1) ... [2020-10-23 19:53:55,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55" (1/1) ... [2020-10-23 19:53:55,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55" (1/1) ... [2020-10-23 19:53:55,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55" (1/1) ... [2020-10-23 19:53:55,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55" (1/1) ... [2020-10-23 19:53:55,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:53:55,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:53:55,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:53:56,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:53:56,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55" (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 19:53:56,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:53:56,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:53:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:53:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:53:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:53:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:53:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:53:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:53:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:53:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:53:56,076 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:53:56,076 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:53:56,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:53:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:53:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:53:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:53:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:53:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:53:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:53:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:53:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:53:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:53:56,082 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:53:56,082 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:53:56,082 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:53:56,083 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:53:56,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:53:56,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:53:56,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:53:56,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:53:56,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:53:56,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:53:56,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:53:56,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:53:56,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:53:56,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:53:56,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:53:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:53:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:53:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:53:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:53:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:53:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:53:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:53:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:53:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:53:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:53:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:53:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:53:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:53:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:53:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:53:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:53:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:53:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:53:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:53:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:53:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:53:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:53:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:53:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:53:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:53:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:53:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:53:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:53:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:53:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:53:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:53:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:53:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:53:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:53:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:53:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:53:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:53:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:53:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:53:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:53:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:53:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:53:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:53:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:53:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:53:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:53:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:53:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:53:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:53:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:53:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:53:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:53:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:53:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:53:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:53:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:53:57,237 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:53:57,237 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:53:57,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:53:57 BoogieIcfgContainer [2020-10-23 19:53:57,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:53:57,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:53:57,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:53:57,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:53:57,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:53:55" (1/3) ... [2020-10-23 19:53:57,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b838cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:53:57, skipping insertion in model container [2020-10-23 19:53:57,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:55" (2/3) ... [2020-10-23 19:53:57,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b838cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:53:57, skipping insertion in model container [2020-10-23 19:53:57,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:53:57" (3/3) ... [2020-10-23 19:53:57,255 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2020-10-23 19:53:57,269 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:53:57,276 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:53:57,290 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:53:57,324 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:53:57,324 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:53:57,324 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:53:57,325 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:53:57,325 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:53:57,325 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:53:57,326 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:53:57,326 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:53:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states. [2020-10-23 19:53:57,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-23 19:53:57,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:57,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:57,405 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 19:53:57,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:57,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1600919579, now seen corresponding path program 1 times [2020-10-23 19:53:57,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:57,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070892082] [2020-10-23 19:53:57,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:57,505 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:58,219 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:58,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:58,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:58,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:58,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:58,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:58,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:58,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:53:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:58,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:53:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:58,411 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 19:53:58,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070892082] [2020-10-23 19:53:58,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:58,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:53:58,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14376371] [2020-10-23 19:53:58,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:53:58,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:58,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:53:58,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:53:58,438 INFO L87 Difference]: Start difference. First operand 336 states. Second operand 4 states. [2020-10-23 19:54:00,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:00,035 INFO L93 Difference]: Finished difference Result 512 states and 602 transitions. [2020-10-23 19:54:00,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 19:54:00,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-23 19:54:00,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:00,055 INFO L225 Difference]: With dead ends: 512 [2020-10-23 19:54:00,055 INFO L226 Difference]: Without dead ends: 323 [2020-10-23 19:54:00,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 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 19:54:00,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-23 19:54:00,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 276. [2020-10-23 19:54:00,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-23 19:54:00,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 299 transitions. [2020-10-23 19:54:00,289 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 299 transitions. Word has length 154 [2020-10-23 19:54:00,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:00,293 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 299 transitions. [2020-10-23 19:54:00,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:54:00,293 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 299 transitions. [2020-10-23 19:54:00,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-23 19:54:00,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:00,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:00,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:54:00,303 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 19:54:00,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:00,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1621809494, now seen corresponding path program 1 times [2020-10-23 19:54:00,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:00,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044447769] [2020-10-23 19:54:00,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:00,312 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:00,778 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:00,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:00,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:00,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:00,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:00,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:00,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:00,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 19:54:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:00,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:54:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:00,909 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 19:54:00,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044447769] [2020-10-23 19:54:00,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:00,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 19:54:00,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412971327] [2020-10-23 19:54:00,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 19:54:00,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:00,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 19:54:00,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:54:00,915 INFO L87 Difference]: Start difference. First operand 276 states and 299 transitions. Second operand 5 states. [2020-10-23 19:54:01,810 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:03,147 INFO L93 Difference]: Finished difference Result 438 states and 493 transitions. [2020-10-23 19:54:03,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 19:54:03,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-23 19:54:03,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:03,154 INFO L225 Difference]: With dead ends: 438 [2020-10-23 19:54:03,155 INFO L226 Difference]: Without dead ends: 312 [2020-10-23 19:54:03,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 19:54:03,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-23 19:54:03,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 266. [2020-10-23 19:54:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-23 19:54:03,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 286 transitions. [2020-10-23 19:54:03,291 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 286 transitions. Word has length 155 [2020-10-23 19:54:03,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:03,292 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 286 transitions. [2020-10-23 19:54:03,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 19:54:03,292 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 286 transitions. [2020-10-23 19:54:03,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-23 19:54:03,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:03,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:03,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:54:03,296 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 19:54:03,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:03,297 INFO L82 PathProgramCache]: Analyzing trace with hash 509427630, now seen corresponding path program 1 times [2020-10-23 19:54:03,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:03,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082324590] [2020-10-23 19:54:03,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:03,301 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,885 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:03,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:04,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:04,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:04,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:04,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:54:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:04,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:54:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:04,118 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 19:54:04,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082324590] [2020-10-23 19:54:04,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:04,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:54:04,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438617607] [2020-10-23 19:54:04,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:54:04,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:04,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:54:04,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:54:04,121 INFO L87 Difference]: Start difference. First operand 266 states and 286 transitions. Second operand 10 states. [2020-10-23 19:54:04,822 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:05,340 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:05,738 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:06,133 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:06,535 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:06,906 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:08,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:08,901 INFO L93 Difference]: Finished difference Result 458 states and 519 transitions. [2020-10-23 19:54:08,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:54:08,902 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-23 19:54:08,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:08,906 INFO L225 Difference]: With dead ends: 458 [2020-10-23 19:54:08,906 INFO L226 Difference]: Without dead ends: 312 [2020-10-23 19:54:08,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 19:54:08,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-23 19:54:09,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 266. [2020-10-23 19:54:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-23 19:54:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 285 transitions. [2020-10-23 19:54:09,013 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 285 transitions. Word has length 164 [2020-10-23 19:54:09,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:09,014 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 285 transitions. [2020-10-23 19:54:09,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:54:09,014 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 285 transitions. [2020-10-23 19:54:09,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-23 19:54:09,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:09,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:09,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:54:09,018 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 19:54:09,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:09,018 INFO L82 PathProgramCache]: Analyzing trace with hash -71288361, now seen corresponding path program 1 times [2020-10-23 19:54:09,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:09,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961583087] [2020-10-23 19:54:09,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:09,022 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,387 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:09,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:54:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 19:54:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-23 19:54:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:09,573 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 19:54:09,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961583087] [2020-10-23 19:54:09,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:09,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 19:54:09,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357087138] [2020-10-23 19:54:09,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 19:54:09,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:09,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 19:54:09,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:54:09,576 INFO L87 Difference]: Start difference. First operand 266 states and 285 transitions. Second operand 7 states. [2020-10-23 19:54:10,223 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:12,275 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:13,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:13,270 INFO L93 Difference]: Finished difference Result 599 states and 688 transitions. [2020-10-23 19:54:13,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:54:13,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 177 [2020-10-23 19:54:13,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:13,275 INFO L225 Difference]: With dead ends: 599 [2020-10-23 19:54:13,275 INFO L226 Difference]: Without dead ends: 453 [2020-10-23 19:54:13,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-23 19:54:13,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-10-23 19:54:13,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 380. [2020-10-23 19:54:13,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-10-23 19:54:13,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 410 transitions. [2020-10-23 19:54:13,446 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 410 transitions. Word has length 177 [2020-10-23 19:54:13,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:13,447 INFO L481 AbstractCegarLoop]: Abstraction has 380 states and 410 transitions. [2020-10-23 19:54:13,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 19:54:13,447 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 410 transitions. [2020-10-23 19:54:13,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 19:54:13,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:13,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:13,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:54:13,451 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 19:54:13,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:13,452 INFO L82 PathProgramCache]: Analyzing trace with hash -277879270, now seen corresponding path program 1 times [2020-10-23 19:54:13,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:13,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118031237] [2020-10-23 19:54:13,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:13,456 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,923 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:13,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:13,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:14,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:14,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:54:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:14,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:14,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:14,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:14,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:14,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 19:54:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:14,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:54:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:14,144 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 19:54:14,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118031237] [2020-10-23 19:54:14,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:14,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:54:14,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620468662] [2020-10-23 19:54:14,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:54:14,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:14,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:54:14,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:54:14,147 INFO L87 Difference]: Start difference. First operand 380 states and 410 transitions. Second operand 10 states. [2020-10-23 19:54:14,840 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:16,792 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:17,187 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:17,590 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:17,959 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:18,350 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:18,719 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:19,111 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:19,650 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:21,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:21,441 INFO L93 Difference]: Finished difference Result 963 states and 1118 transitions. [2020-10-23 19:54:21,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 19:54:21,443 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2020-10-23 19:54:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:21,452 INFO L225 Difference]: With dead ends: 963 [2020-10-23 19:54:21,452 INFO L226 Difference]: Without dead ends: 703 [2020-10-23 19:54:21,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-23 19:54:21,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2020-10-23 19:54:21,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 593. [2020-10-23 19:54:21,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-23 19:54:21,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 645 transitions. [2020-10-23 19:54:21,774 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 645 transitions. Word has length 201 [2020-10-23 19:54:21,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:21,775 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 645 transitions. [2020-10-23 19:54:21,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:54:21,775 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 645 transitions. [2020-10-23 19:54:21,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-23 19:54:21,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:21,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:21,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:54:21,781 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 19:54:21,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:21,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1181188940, now seen corresponding path program 1 times [2020-10-23 19:54:21,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:21,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005149745] [2020-10-23 19:54:21,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:21,785 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,241 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:22,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:54:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 19:54:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-23 19:54:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:22,463 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 19:54:22,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1005149745] [2020-10-23 19:54:22,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:22,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:54:22,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533971455] [2020-10-23 19:54:22,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:54:22,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:22,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:54:22,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:54:22,466 INFO L87 Difference]: Start difference. First operand 593 states and 645 transitions. Second operand 11 states. [2020-10-23 19:54:23,148 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:25,060 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:25,447 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:25,859 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:26,244 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:26,700 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:27,142 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:27,551 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:27,953 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:29,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:29,183 INFO L93 Difference]: Finished difference Result 1237 states and 1422 transitions. [2020-10-23 19:54:29,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-23 19:54:29,184 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2020-10-23 19:54:29,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:29,189 INFO L225 Difference]: With dead ends: 1237 [2020-10-23 19:54:29,189 INFO L226 Difference]: Without dead ends: 764 [2020-10-23 19:54:29,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-10-23 19:54:29,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-10-23 19:54:29,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 591. [2020-10-23 19:54:29,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-23 19:54:29,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 641 transitions. [2020-10-23 19:54:29,496 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 641 transitions. Word has length 206 [2020-10-23 19:54:29,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:29,497 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 641 transitions. [2020-10-23 19:54:29,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:54:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 641 transitions. [2020-10-23 19:54:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-23 19:54:29,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:29,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:29,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:54:29,502 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 19:54:29,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:29,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1038225314, now seen corresponding path program 1 times [2020-10-23 19:54:29,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:29,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123033810] [2020-10-23 19:54:29,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:29,506 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,881 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:29,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:54:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:29,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 19:54:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 19:54:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:30,111 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 19:54:30,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123033810] [2020-10-23 19:54:30,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:30,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:54:30,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492236392] [2020-10-23 19:54:30,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:54:30,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:30,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:54:30,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:54:30,113 INFO L87 Difference]: Start difference. First operand 591 states and 641 transitions. Second operand 11 states. [2020-10-23 19:54:31,653 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:32,074 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:32,493 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 19:54:32,882 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:33,292 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:33,662 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:35,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:35,266 INFO L93 Difference]: Finished difference Result 1245 states and 1436 transitions. [2020-10-23 19:54:35,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:54:35,266 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 207 [2020-10-23 19:54:35,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:35,272 INFO L225 Difference]: With dead ends: 1245 [2020-10-23 19:54:35,272 INFO L226 Difference]: Without dead ends: 774 [2020-10-23 19:54:35,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:54:35,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-10-23 19:54:35,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 607. [2020-10-23 19:54:35,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-10-23 19:54:35,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 657 transitions. [2020-10-23 19:54:35,600 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 657 transitions. Word has length 207 [2020-10-23 19:54:35,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:35,601 INFO L481 AbstractCegarLoop]: Abstraction has 607 states and 657 transitions. [2020-10-23 19:54:35,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:54:35,601 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 657 transitions. [2020-10-23 19:54:35,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-23 19:54:35,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:35,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:35,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:54:35,607 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 19:54:35,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:35,607 INFO L82 PathProgramCache]: Analyzing trace with hash -624593922, now seen corresponding path program 1 times [2020-10-23 19:54:35,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:35,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304777605] [2020-10-23 19:54:35,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:35,611 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:35,999 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:36,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:54:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 19:54:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 19:54:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:36,292 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 19:54:36,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304777605] [2020-10-23 19:54:36,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:36,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:54:36,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534143239] [2020-10-23 19:54:36,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:54:36,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:36,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:54:36,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:54:36,296 INFO L87 Difference]: Start difference. First operand 607 states and 657 transitions. Second operand 14 states. [2020-10-23 19:54:37,086 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:54:37,479 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:37,875 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:38,260 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:38,638 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:39,738 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:40,125 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:40,538 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:40,949 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:41,325 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:43,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:43,108 INFO L93 Difference]: Finished difference Result 1283 states and 1492 transitions. [2020-10-23 19:54:43,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:54:43,109 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 207 [2020-10-23 19:54:43,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:43,114 INFO L225 Difference]: With dead ends: 1283 [2020-10-23 19:54:43,114 INFO L226 Difference]: Without dead ends: 796 [2020-10-23 19:54:43,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 19:54:43,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2020-10-23 19:54:43,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 619. [2020-10-23 19:54:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2020-10-23 19:54:43,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 669 transitions. [2020-10-23 19:54:43,418 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 669 transitions. Word has length 207 [2020-10-23 19:54:43,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:43,419 INFO L481 AbstractCegarLoop]: Abstraction has 619 states and 669 transitions. [2020-10-23 19:54:43,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:54:43,419 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 669 transitions. [2020-10-23 19:54:43,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-23 19:54:43,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:43,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:43,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:54:43,422 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 19:54:43,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:43,422 INFO L82 PathProgramCache]: Analyzing trace with hash -694112031, now seen corresponding path program 1 times [2020-10-23 19:54:43,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:43,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691116848] [2020-10-23 19:54:43,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:43,426 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,792 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:43,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:54:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 19:54:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:43,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 19:54:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:44,026 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 19:54:44,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691116848] [2020-10-23 19:54:44,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:44,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 19:54:44,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054257321] [2020-10-23 19:54:44,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 19:54:44,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:44,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 19:54:44,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 19:54:44,029 INFO L87 Difference]: Start difference. First operand 619 states and 669 transitions. Second operand 8 states. [2020-10-23 19:54:44,709 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:45,491 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:48,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:48,772 INFO L93 Difference]: Finished difference Result 1765 states and 2106 transitions. [2020-10-23 19:54:48,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-23 19:54:48,772 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-10-23 19:54:48,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:48,783 INFO L225 Difference]: With dead ends: 1765 [2020-10-23 19:54:48,783 INFO L226 Difference]: Without dead ends: 1266 [2020-10-23 19:54:48,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:54:48,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2020-10-23 19:54:49,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1033. [2020-10-23 19:54:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1033 states. [2020-10-23 19:54:49,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1151 transitions. [2020-10-23 19:54:49,420 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1151 transitions. Word has length 207 [2020-10-23 19:54:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:49,421 INFO L481 AbstractCegarLoop]: Abstraction has 1033 states and 1151 transitions. [2020-10-23 19:54:49,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 19:54:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1151 transitions. [2020-10-23 19:54:49,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-23 19:54:49,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:49,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:49,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:54:49,424 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:49,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:49,425 INFO L82 PathProgramCache]: Analyzing trace with hash 842929620, now seen corresponding path program 1 times [2020-10-23 19:54:49,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:49,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233577474] [2020-10-23 19:54:49,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:49,428 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,826 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:49,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:54:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:54:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:54:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 19:54:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-10-23 19:54:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:49,997 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 19:54:49,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233577474] [2020-10-23 19:54:49,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:49,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 19:54:49,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679637572] [2020-10-23 19:54:49,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 19:54:49,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:49,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 19:54:49,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 19:54:49,999 INFO L87 Difference]: Start difference. First operand 1033 states and 1151 transitions. Second operand 8 states. [2020-10-23 19:54:50,695 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:54,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:54,421 INFO L93 Difference]: Finished difference Result 1988 states and 2370 transitions. [2020-10-23 19:54:54,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-23 19:54:54,421 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 212 [2020-10-23 19:54:54,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:54,434 INFO L225 Difference]: With dead ends: 1988 [2020-10-23 19:54:54,434 INFO L226 Difference]: Without dead ends: 1984 [2020-10-23 19:54:54,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2020-10-23 19:54:54,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2020-10-23 19:54:55,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1642. [2020-10-23 19:54:55,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2020-10-23 19:54:55,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 1851 transitions. [2020-10-23 19:54:55,456 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 1851 transitions. Word has length 212 [2020-10-23 19:54:55,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:55,457 INFO L481 AbstractCegarLoop]: Abstraction has 1642 states and 1851 transitions. [2020-10-23 19:54:55,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 19:54:55,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 1851 transitions. [2020-10-23 19:54:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-23 19:54:55,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:55,465 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-23 19:54:55,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 19:54:55,465 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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 19:54:55,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:55,466 INFO L82 PathProgramCache]: Analyzing trace with hash 2131445654, now seen corresponding path program 1 times [2020-10-23 19:54:55,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:55,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514884181] [2020-10-23 19:54:55,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:55,874 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-23 19:54:56,044 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-23 19:54:56,358 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2020-10-23 19:54:56,500 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 19:54:56,920 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2020-10-23 19:54:57,071 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 19:54:57,449 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-23 19:54:57,572 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-23 19:54:57,984 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2020-10-23 19:54:58,136 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 19:54:58,487 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2020-10-23 19:54:58,612 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-23 19:54:58,954 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2020-10-23 19:54:59,078 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 19:54:59,478 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 81 [2020-10-23 19:54:59,598 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 19:54:59,967 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-23 19:55:00,094 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-23 19:55:00,521 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2020-10-23 19:55:00,675 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 19:55:01,105 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2020-10-23 19:55:01,260 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:55:01,698 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2020-10-23 19:55:01,850 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:55:02,271 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2020-10-23 19:55:02,446 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:55:02,805 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2020-10-23 19:55:02,922 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 19:55:03,717 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:04,448 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:05,223 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:06,004 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:06,756 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:07,517 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:08,265 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:09,007 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:09,011 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:09,760 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-10-23 19:55:10,506 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-10-23 19:55:11,216 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-10-23 19:55:11,938 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-10-23 19:55:12,635 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-10-23 19:55:13,332 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-10-23 19:55:14,042 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-10-23 19:55:14,753 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-10-23 19:55:14,782 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:15,530 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:16,311 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:17,100 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:17,860 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:18,637 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:19,380 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:20,095 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:20,836 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:21,588 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:22,312 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:23,044 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:23,766 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:24,507 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:25,263 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:26,029 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:26,817 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:26,821 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:27,577 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:55:28,341 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:55:29,130 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:55:29,880 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:55:30,650 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:55:31,447 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:55:32,224 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:55:32,993 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:55:32,997 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:33,769 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:34,579 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:35,371 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:36,132 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:36,908 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:37,698 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:38,511 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:39,260 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:40,004 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:40,743 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:41,564 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:42,339 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:43,114 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:43,917 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:44,716 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:45,513 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-10-23 19:55:45,516 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:46,239 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 185 [2020-10-23 19:55:46,949 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 184 [2020-10-23 19:55:47,657 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 184 [2020-10-23 19:55:48,417 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 184 [2020-10-23 19:55:49,119 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 184 [2020-10-23 19:55:49,865 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 185 [2020-10-23 19:55:50,626 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 185 [2020-10-23 19:55:51,390 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 185 [2020-10-23 19:55:51,394 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:52,183 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:52,962 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:53,745 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:54,536 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:55,324 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:56,109 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:56,899 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:57,689 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:57,692 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:58,481 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 184 [2020-10-23 19:55:59,249 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 184 [2020-10-23 19:56:00,019 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 185 [2020-10-23 19:56:00,777 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 185 [2020-10-23 19:56:01,535 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 185 [2020-10-23 19:56:02,297 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 184 [2020-10-23 19:56:03,054 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 184 [2020-10-23 19:56:03,814 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 185 [2020-10-23 19:56:03,818 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:04,557 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:56:05,289 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:56:06,009 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:56:06,763 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:56:07,509 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:56:08,266 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:56:09,023 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:56:09,804 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:56:09,808 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:10,600 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:11,406 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:12,174 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:12,913 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:13,649 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:14,394 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:15,198 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:16,006 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:16,761 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:17,558 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:18,336 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:19,163 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:19,988 WARN L193 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:20,817 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:21,633 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:22,438 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:56:22,440 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:23,241 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 183 [2020-10-23 19:56:24,049 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:24,861 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:25,660 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:26,471 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:27,269 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:28,067 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:28,862 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 183 [2020-10-23 19:56:29,671 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:30,478 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 183 [2020-10-23 19:56:31,288 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:32,086 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:32,832 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 183 [2020-10-23 19:56:33,595 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:34,346 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:35,141 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:56:35,144 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:35,936 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:36,728 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:37,513 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:38,305 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:56:39,099 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:39,910 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:56:40,741 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:41,528 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:42,286 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:43,041 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:43,813 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:44,601 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:45,397 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:46,212 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:56:47,017 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:47,851 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:56:47,854 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:56:48,687 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:49,528 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:56:50,349 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:51,200 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:56:52,026 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:52,854 WARN L193 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:53,678 WARN L193 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:56:54,515 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:55,337 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:56,158 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:56:56,978 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:57,780 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:58,581 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:56:59,409 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:57:00,199 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:57:00,960 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:57:00,963 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:57:01,727 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:57:02,544 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:57:03,359 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:57:04,170 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:57:04,971 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:57:05,796 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:57:06,600 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:57:07,349 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:57:07,352 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:57:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:08,323 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:09,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:09,738 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:57:09,738 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:57:09,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-23 19:57:09,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:57:09 BoogieIcfgContainer [2020-10-23 19:57:09,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:57:09,803 INFO L168 Benchmark]: Toolchain (without parser) took 194595.86 ms. Allocated memory was 151.0 MB in the beginning and 911.2 MB in the end (delta: 760.2 MB). Free memory was 126.8 MB in the beginning and 701.9 MB in the end (delta: -575.1 MB). Peak memory consumption was 581.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:09,810 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:57:09,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.87 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 104.9 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:09,811 INFO L168 Benchmark]: Boogie Preprocessor took 159.91 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:09,812 INFO L168 Benchmark]: RCFGBuilder took 1241.80 ms. Allocated memory is still 151.0 MB. Free memory was 132.1 MB in the beginning and 85.7 MB in the end (delta: 46.3 MB). Peak memory consumption was 64.7 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:09,812 INFO L168 Benchmark]: TraceAbstraction took 192552.85 ms. Allocated memory was 151.0 MB in the beginning and 911.2 MB in the end (delta: 760.2 MB). Free memory was 85.7 MB in the beginning and 701.9 MB in the end (delta: -616.1 MB). Peak memory consumption was 539.6 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:09,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 628.87 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 104.9 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 159.91 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1241.80 ms. Allocated memory is still 151.0 MB. Free memory was 132.1 MB in the beginning and 85.7 MB in the end (delta: 46.3 MB). Peak memory consumption was 64.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 192552.85 ms. Allocated memory was 151.0 MB in the beginning and 911.2 MB in the end (delta: 760.2 MB). Free memory was 85.7 MB in the beginning and 701.9 MB in the end (delta: -616.1 MB). Peak memory consumption was 539.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L154] int waterLevel = 1; [L155] int methaneLevelCritical = 0; [L259] int methAndRunningLastTime ; [L365] int pumpRunning = 0; [L366] int systemActive = 1; [L731] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L125] int retValue_acc ; [L126] int tmp ; [L130] FCALL select_helpers() [L131] FCALL select_features() [L132] CALL, EXPR valid_product() [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] return (retValue_acc); [L132] RET, EXPR valid_product() [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L136] FCALL setup() [L137] CALL runTest() [L115] CALL __utac_acc__Specification2_spec__1() [L264] methAndRunningLastTime = 0 [L115] RET __utac_acc__Specification2_spec__1() [L116] CALL test() [L299] int splverifierCounter ; [L300] int tmp ; [L301] int tmp___0 ; [L302] int tmp___1 ; [L303] int tmp___2 ; [L306] splverifierCounter = 0 [L308] COND TRUE 1 [L310] COND TRUE splverifierCounter < 4 [L316] tmp = __VERIFIER_nondet_int() [L318] COND TRUE \read(tmp) [L320] CALL waterRise() [L172] COND TRUE waterLevel < 2 [L173] waterLevel = waterLevel + 1 [L320] RET waterRise() [L326] tmp___0 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___0) [L330] CALL changeMethaneLevel() [L184] COND FALSE !(\read(methaneLevelCritical)) [L187] methaneLevelCritical = 1 [L330] RET changeMethaneLevel() [L336] tmp___2 = __VERIFIER_nondet_int() [L338] COND TRUE \read(tmp___2) [L351] CALL timeShift() [L372] COND FALSE !(\read(pumpRunning)) [L379] COND TRUE \read(systemActive) [L381] CALL processEnvironment() [L427] int tmp ; [L430] COND FALSE !(\read(pumpRunning)) [L445] CALL processEnvironment__wrappee__highWaterSensor() [L401] int tmp ; [L404] COND TRUE ! pumpRunning [L406] CALL, EXPR isHighWaterLevel() [L524] int retValue_acc ; [L525] int tmp ; [L526] int tmp___0 ; [L530] CALL, EXPR isHighWaterSensorDry() [L234] int retValue_acc ; [L237] COND FALSE !(waterLevel < 2) [L241] retValue_acc = 0 [L242] return (retValue_acc); [L530] RET, EXPR isHighWaterSensorDry() [L530] tmp = isHighWaterSensorDry() [L532] COND FALSE !(\read(tmp)) [L535] tmp___0 = 1 [L537] retValue_acc = tmp___0 [L538] return (retValue_acc); [L406] RET, EXPR isHighWaterLevel() [L406] tmp = isHighWaterLevel() [L408] COND TRUE \read(tmp) [L410] CALL activatePump() [L455] pumpRunning = 1 [L410] RET activatePump() [L445] RET processEnvironment__wrappee__highWaterSensor() [L381] RET processEnvironment() [L387] CALL __utac_acc__Specification2_spec__2() [L269] int tmp ; [L270] int tmp___0 ; [L274] CALL, EXPR isMethaneLevelCritical() [L193] int retValue_acc ; [L196] retValue_acc = methaneLevelCritical [L197] return (retValue_acc); [L274] RET, EXPR isMethaneLevelCritical() [L274] tmp = isMethaneLevelCritical() [L276] COND TRUE \read(tmp) [L278] CALL, EXPR isPumpRunning() [L479] int retValue_acc ; [L482] retValue_acc = pumpRunning [L483] return (retValue_acc); [L278] RET, EXPR isPumpRunning() [L278] tmp___0 = isPumpRunning() [L280] COND TRUE \read(tmp___0) [L281] COND FALSE !(\read(methAndRunningLastTime)) [L286] methAndRunningLastTime = 1 [L387] RET __utac_acc__Specification2_spec__2() [L351] RET timeShift() [L308] COND TRUE 1 [L310] COND TRUE splverifierCounter < 4 [L316] tmp = __VERIFIER_nondet_int() [L318] COND FALSE !(\read(tmp)) [L326] tmp___0 = __VERIFIER_nondet_int() [L328] COND FALSE !(\read(tmp___0)) [L336] tmp___2 = __VERIFIER_nondet_int() [L338] COND TRUE \read(tmp___2) [L351] CALL timeShift() [L372] COND FALSE !(\read(pumpRunning)) [L379] COND TRUE \read(systemActive) [L381] CALL processEnvironment() [L427] int tmp ; [L430] COND FALSE !(\read(pumpRunning)) [L445] CALL processEnvironment__wrappee__highWaterSensor() [L401] int tmp ; [L404] COND TRUE ! pumpRunning [L406] CALL, EXPR isHighWaterLevel() [L524] int retValue_acc ; [L525] int tmp ; [L526] int tmp___0 ; [L530] CALL, EXPR isHighWaterSensorDry() [L234] int retValue_acc ; [L237] COND FALSE !(waterLevel < 2) [L241] retValue_acc = 0 [L242] return (retValue_acc); [L530] RET, EXPR isHighWaterSensorDry() [L530] tmp = isHighWaterSensorDry() [L532] COND FALSE !(\read(tmp)) [L535] tmp___0 = 1 [L537] retValue_acc = tmp___0 [L538] return (retValue_acc); [L406] RET, EXPR isHighWaterLevel() [L406] tmp = isHighWaterLevel() [L408] COND TRUE \read(tmp) [L410] CALL activatePump() [L455] pumpRunning = 1 [L410] RET activatePump() [L445] RET processEnvironment__wrappee__highWaterSensor() [L381] RET processEnvironment() [L387] CALL __utac_acc__Specification2_spec__2() [L269] int tmp ; [L270] int tmp___0 ; [L274] CALL, EXPR isMethaneLevelCritical() [L193] int retValue_acc ; [L196] retValue_acc = methaneLevelCritical [L197] return (retValue_acc); [L274] RET, EXPR isMethaneLevelCritical() [L274] tmp = isMethaneLevelCritical() [L276] COND TRUE \read(tmp) [L278] CALL, EXPR isPumpRunning() [L479] int retValue_acc ; [L482] retValue_acc = pumpRunning [L483] return (retValue_acc); [L278] RET, EXPR isPumpRunning() [L278] tmp___0 = isPumpRunning() [L280] COND TRUE \read(tmp___0) [L281] COND TRUE \read(methAndRunningLastTime) [L283] CALL __automaton_fail() [L932] CALL reach_error() [L3] __assert_fail("0", "minepump_spec2_product49.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 659 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 192.4s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 47.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2589 SDtfs, 7134 SDslu, 4567 SDs, 0 SdLazy, 9143 SolverSat, 1942 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 478 GetRequests, 291 SyntacticMatches, 4 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 22.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1642occurred in iteration=10, 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, 10 MinimizatonAttempts, 1414 StatesRemovedByMinimization, 10 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...