/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:14:23,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:14:23,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:14:23,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 01:14:23,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 01:14:23,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 01:14:23,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 01:14:23,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 01:14:23,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 01:14:23,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 01:14:23,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 01:14:23,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 01:14:23,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:14:23,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:14:23,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:14:23,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:14:23,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:14:23,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:14:23,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:14:23,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:14:23,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:14:23,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:14:23,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:14:23,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:14:23,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 01:14:23,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 01:14:23,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 01:14:23,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 01:14:23,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 01:14:23,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 01:14:23,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 01:14:23,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 01:14:23,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 01:14:23,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 01:14:23,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 01:14:23,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 01:14:23,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 01:14:23,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 01:14:23,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:14:23,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:14:23,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:14:23,406 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:14:23,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:14:23,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:14:23,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:14:23,432 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:14:23,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:14:23,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:14:23,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:14:23,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:14:23,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:14:23,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:14:23,434 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:14:23,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:14:23,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:14:23,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:14:23,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:14:23,436 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:14:23,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:14:23,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:14:23,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:14:23,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:14:23,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:14:23,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:14:23,437 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:14:23,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:14:23,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:14:23,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:14:23,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:14:23,845 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:14:23,846 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:14:23,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2021-02-22 01:14:23,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9b49607f/fe4d224809644fba91ce31fd7790a906/FLAGc8f74abe0 [2021-02-22 01:14:24,714 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:14:24,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2021-02-22 01:14:24,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9b49607f/fe4d224809644fba91ce31fd7790a906/FLAGc8f74abe0 [2021-02-22 01:14:24,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9b49607f/fe4d224809644fba91ce31fd7790a906 [2021-02-22 01:14:24,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:14:24,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:14:24,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:14:24,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:14:24,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:14:24,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:14:24" (1/1) ... [2021-02-22 01:14:24,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b10667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:24, skipping insertion in model container [2021-02-22 01:14:24,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:14:24" (1/1) ... [2021-02-22 01:14:25,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:14:25,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:14:25,309 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c[8616,8629] [2021-02-22 01:14:25,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:14:25,442 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:14:25,484 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c[8616,8629] [2021-02-22 01:14:25,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:14:25,571 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:14:25,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:25 WrapperNode [2021-02-22 01:14:25,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:14:25,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:14:25,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:14:25,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:14:25,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:25" (1/1) ... [2021-02-22 01:14:25,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:25" (1/1) ... [2021-02-22 01:14:25,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:25" (1/1) ... [2021-02-22 01:14:25,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:25" (1/1) ... [2021-02-22 01:14:25,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:25" (1/1) ... [2021-02-22 01:14:25,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:25" (1/1) ... [2021-02-22 01:14:25,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:25" (1/1) ... [2021-02-22 01:14:25,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:14:25,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:14:25,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:14:25,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:14:25,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:25" (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 [2021-02-22 01:14:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:14:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:14:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 01:14:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:14:25,888 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 01:14:25,889 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 01:14:25,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 01:14:25,889 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 01:14:25,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:14:25,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-22 01:14:25,889 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 01:14:25,890 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 01:14:25,890 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 01:14:25,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 01:14:25,890 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 01:14:25,890 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 01:14:25,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-22 01:14:25,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-22 01:14:25,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 01:14:25,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 01:14:25,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 01:14:25,891 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 01:14:25,891 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 01:14:25,892 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 01:14:25,892 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-22 01:14:25,892 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 01:14:25,892 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 01:14:25,892 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 01:14:25,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 01:14:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 01:14:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 01:14:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-22 01:14:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-22 01:14:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-22 01:14:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 01:14:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 01:14:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 01:14:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 01:14:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 01:14:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 01:14:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 01:14:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 01:14:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:14:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:14:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:14:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:14:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:14:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 01:14:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 01:14:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 01:14:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 01:14:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 01:14:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 01:14:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 01:14:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 01:14:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 01:14:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 01:14:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 01:14:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 01:14:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 01:14:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:14:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 01:14:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 01:14:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 01:14:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-22 01:14:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 01:14:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 01:14:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 01:14:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-22 01:14:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-22 01:14:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 01:14:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 01:14:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 01:14:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-22 01:14:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 01:14:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 01:14:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-22 01:14:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-22 01:14:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-22 01:14:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 01:14:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 01:14:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 01:14:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 01:14:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 01:14:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 01:14:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:14:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 01:14:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 01:14:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:14:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 01:14:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 01:14:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:14:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 01:14:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 01:14:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 01:14:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:14:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:14:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:14:27,070 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:14:27,070 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 01:14:27,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:14:27 BoogieIcfgContainer [2021-02-22 01:14:27,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:14:27,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:14:27,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:14:27,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:14:27,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:14:24" (1/3) ... [2021-02-22 01:14:27,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ef1ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:14:27, skipping insertion in model container [2021-02-22 01:14:27,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:14:25" (2/3) ... [2021-02-22 01:14:27,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ef1ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:14:27, skipping insertion in model container [2021-02-22 01:14:27,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:14:27" (3/3) ... [2021-02-22 01:14:27,083 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2021-02-22 01:14:27,090 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:14:27,096 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:14:27,116 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:14:27,141 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:14:27,142 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:14:27,142 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:14:27,142 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:14:27,142 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:14:27,142 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:14:27,143 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:14:27,143 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:14:27,167 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2021-02-22 01:14:27,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-22 01:14:27,187 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:14:27,188 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] [2021-02-22 01:14:27,189 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:14:27,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:14:27,195 INFO L82 PathProgramCache]: Analyzing trace with hash 532742290, now seen corresponding path program 1 times [2021-02-22 01:14:27,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:14:27,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46015947] [2021-02-22 01:14:27,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:14:27,287 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:14:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:27,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:27,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:27,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:27,913 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:14:27,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:14:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:28,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:28,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:14:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:28,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:28,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:14:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:28,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:28,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:14:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:28,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:28,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:14:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:28,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:28,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 01:14:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:28,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:28,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 01:14:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:28,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:28,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:14:28,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46015947] [2021-02-22 01:14:28,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:14:28,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 01:14:28,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836447863] [2021-02-22 01:14:28,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 01:14:28,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:14:28,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 01:14:28,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:14:28,232 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 3 states. [2021-02-22 01:14:30,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:14:30,067 INFO L93 Difference]: Finished difference Result 509 states and 605 transitions. [2021-02-22 01:14:30,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 01:14:30,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-22 01:14:30,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:14:30,096 INFO L225 Difference]: With dead ends: 509 [2021-02-22 01:14:30,096 INFO L226 Difference]: Without dead ends: 315 [2021-02-22 01:14:30,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:14:30,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-02-22 01:14:30,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 272. [2021-02-22 01:14:30,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2021-02-22 01:14:30,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 296 transitions. [2021-02-22 01:14:30,357 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 296 transitions. Word has length 147 [2021-02-22 01:14:30,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:14:30,359 INFO L480 AbstractCegarLoop]: Abstraction has 272 states and 296 transitions. [2021-02-22 01:14:30,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 01:14:30,360 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 296 transitions. [2021-02-22 01:14:30,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-22 01:14:30,376 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:14:30,377 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] [2021-02-22 01:14:30,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:14:30,377 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:14:30,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:14:30,378 INFO L82 PathProgramCache]: Analyzing trace with hash 37641117, now seen corresponding path program 1 times [2021-02-22 01:14:30,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:14:30,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745172528] [2021-02-22 01:14:30,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:14:30,384 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:14:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:30,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:30,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:30,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:30,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:30,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:30,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:30,878 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:14:30,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:14:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:30,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:30,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:30,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:14:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:30,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:30,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:30,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:14:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:30,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:30,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:30,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:14:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:30,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:30,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:30,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:14:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:30,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:30,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:30,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 01:14:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:30,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:30,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:30,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:14:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:30,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:30,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:14:30,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745172528] [2021-02-22 01:14:30,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:14:30,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:14:30,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877750143] [2021-02-22 01:14:30,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:14:30,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:14:30,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:14:30,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:14:30,979 INFO L87 Difference]: Start difference. First operand 272 states and 296 transitions. Second operand 4 states. [2021-02-22 01:14:31,697 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:14:32,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:14:32,855 INFO L93 Difference]: Finished difference Result 419 states and 471 transitions. [2021-02-22 01:14:32,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:14:32,861 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-22 01:14:32,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:14:32,867 INFO L225 Difference]: With dead ends: 419 [2021-02-22 01:14:32,867 INFO L226 Difference]: Without dead ends: 298 [2021-02-22 01:14:32,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:14:32,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-02-22 01:14:32,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 262. [2021-02-22 01:14:32,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-02-22 01:14:32,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 283 transitions. [2021-02-22 01:14:32,984 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 283 transitions. Word has length 148 [2021-02-22 01:14:32,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:14:32,985 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 283 transitions. [2021-02-22 01:14:32,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:14:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 283 transitions. [2021-02-22 01:14:32,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-22 01:14:32,987 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:14:32,987 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] [2021-02-22 01:14:32,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:14:32,988 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:14:32,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:14:32,988 INFO L82 PathProgramCache]: Analyzing trace with hash 423990714, now seen corresponding path program 1 times [2021-02-22 01:14:32,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:14:32,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058686898] [2021-02-22 01:14:32,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:14:32,992 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:14:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:33,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:33,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:33,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:33,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:33,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:33,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:33,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:33,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:33,441 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:14:33,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:14:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:33,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:33,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:14:33,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:14:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:33,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:33,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:14:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:33,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:33,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:14:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:33,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:33,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:14:33,548 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 01:14:33,549 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 01:14:33,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:14:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:33,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:33,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 01:14:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:33,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:33,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-22 01:14:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:33,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:33,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:14:33,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2058686898] [2021-02-22 01:14:33,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:14:33,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:14:33,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990258132] [2021-02-22 01:14:33,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:14:33,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:14:33,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:14:33,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:14:33,616 INFO L87 Difference]: Start difference. First operand 262 states and 283 transitions. Second operand 9 states. [2021-02-22 01:14:34,348 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:14:34,756 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:14:35,133 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:14:35,495 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:35,859 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:36,192 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:37,259 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:14:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:14:39,800 INFO L93 Difference]: Finished difference Result 687 states and 790 transitions. [2021-02-22 01:14:39,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 01:14:39,801 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-22 01:14:39,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:14:39,806 INFO L225 Difference]: With dead ends: 687 [2021-02-22 01:14:39,806 INFO L226 Difference]: Without dead ends: 540 [2021-02-22 01:14:39,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-22 01:14:39,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-02-22 01:14:40,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 473. [2021-02-22 01:14:40,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2021-02-22 01:14:40,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 529 transitions. [2021-02-22 01:14:40,026 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 529 transitions. Word has length 157 [2021-02-22 01:14:40,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:14:40,027 INFO L480 AbstractCegarLoop]: Abstraction has 473 states and 529 transitions. [2021-02-22 01:14:40,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:14:40,027 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 529 transitions. [2021-02-22 01:14:40,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-22 01:14:40,030 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:14:40,031 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] [2021-02-22 01:14:40,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:14:40,031 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:14:40,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:14:40,032 INFO L82 PathProgramCache]: Analyzing trace with hash -518020844, now seen corresponding path program 1 times [2021-02-22 01:14:40,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:14:40,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12593378] [2021-02-22 01:14:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:14:40,035 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:14:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:40,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:40,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:40,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:40,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:40,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:40,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:40,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:40,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:40,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:40,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:14:40,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:40,474 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:14:40,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:14:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:40,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:40,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:14:40,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:14:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:40,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:40,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:14:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:40,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:40,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:14:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:40,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:40,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:14:40,567 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 01:14:40,568 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 01:14:40,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:14:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:40,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:40,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-22 01:14:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:40,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:40,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-22 01:14:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:40,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:40,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:40,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:40,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-22 01:14:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:40,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:40,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:14:40,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12593378] [2021-02-22 01:14:40,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:14:40,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 01:14:40,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372868218] [2021-02-22 01:14:40,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 01:14:40,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:14:40,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 01:14:40,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-22 01:14:40,729 INFO L87 Difference]: Start difference. First operand 473 states and 529 transitions. Second operand 14 states. [2021-02-22 01:14:41,432 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:14:41,885 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:14:42,279 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:14:42,664 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:43,052 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:43,384 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:44,143 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:14:45,660 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:46,128 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:46,748 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:47,185 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:14:47,557 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:14:47,952 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:14:48,355 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:14:48,823 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:49,184 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:49,718 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:50,200 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:14:50,611 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:14:51,145 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:14:53,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:14:53,384 INFO L93 Difference]: Finished difference Result 1629 states and 2040 transitions. [2021-02-22 01:14:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-22 01:14:53,387 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2021-02-22 01:14:53,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:14:53,400 INFO L225 Difference]: With dead ends: 1629 [2021-02-22 01:14:53,400 INFO L226 Difference]: Without dead ends: 1271 [2021-02-22 01:14:53,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-22 01:14:53,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2021-02-22 01:14:53,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1136. [2021-02-22 01:14:53,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1136 states. [2021-02-22 01:14:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1342 transitions. [2021-02-22 01:14:53,931 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1342 transitions. Word has length 166 [2021-02-22 01:14:53,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:14:53,931 INFO L480 AbstractCegarLoop]: Abstraction has 1136 states and 1342 transitions. [2021-02-22 01:14:53,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 01:14:53,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1342 transitions. [2021-02-22 01:14:53,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-22 01:14:53,936 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:14:53,937 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] [2021-02-22 01:14:53,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:14:53,937 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:14:53,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:14:53,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1494626536, now seen corresponding path program 1 times [2021-02-22 01:14:53,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:14:53,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560041532] [2021-02-22 01:14:53,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:14:53,941 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:14:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:54,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:54,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:54,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:54,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:54,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:54,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:54,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:54,287 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:14:54,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:14:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:54,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:54,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:54,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:14:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:54,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:54,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:14:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:54,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:54,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:14:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:54,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:54,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:14:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:54,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:54,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-22 01:14:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:54,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:54,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-22 01:14:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:54,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:54,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-22 01:14:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:54,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:54,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-22 01:14:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:54,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:54,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:54,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:14:54,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560041532] [2021-02-22 01:14:54,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:14:54,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 01:14:54,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857653922] [2021-02-22 01:14:54,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 01:14:54,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:14:54,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 01:14:54,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:14:54,442 INFO L87 Difference]: Start difference. First operand 1136 states and 1342 transitions. Second operand 6 states. [2021-02-22 01:14:55,084 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:14:57,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:14:57,995 INFO L93 Difference]: Finished difference Result 2593 states and 3251 transitions. [2021-02-22 01:14:57,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-22 01:14:57,996 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2021-02-22 01:14:57,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:14:58,007 INFO L225 Difference]: With dead ends: 2593 [2021-02-22 01:14:58,007 INFO L226 Difference]: Without dead ends: 1572 [2021-02-22 01:14:58,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-22 01:14:58,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2021-02-22 01:14:58,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1449. [2021-02-22 01:14:58,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1449 states. [2021-02-22 01:14:58,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1709 transitions. [2021-02-22 01:14:58,682 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1709 transitions. Word has length 171 [2021-02-22 01:14:58,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:14:58,682 INFO L480 AbstractCegarLoop]: Abstraction has 1449 states and 1709 transitions. [2021-02-22 01:14:58,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 01:14:58,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1709 transitions. [2021-02-22 01:14:58,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-22 01:14:58,688 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:14:58,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:14:58,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:14:58,689 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:14:58,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:14:58,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1115653263, now seen corresponding path program 1 times [2021-02-22 01:14:58,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:14:58,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986399074] [2021-02-22 01:14:58,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:14:58,754 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:14:58,778 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:14:58,791 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:14:58,798 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:14:58,859 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:58,870 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:58,876 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:14:58,879 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:14:58,886 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:14:58,894 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:14:58,901 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:14:58,908 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:14:58,965 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:58,967 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:58,971 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:14:58,974 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:14:58,983 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:14:58,997 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:14:59,004 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:14:59,020 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:14:59,073 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:59,074 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:59,078 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:14:59,081 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:14:59,086 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:14:59,092 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:14:59,098 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:14:59,104 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:14:59,157 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:59,158 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:59,162 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:14:59,165 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:14:59,171 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:14:59,177 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:14:59,184 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:14:59,190 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:14:59,242 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:59,244 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:59,248 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:14:59,250 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:14:59,256 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:14:59,262 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:14:59,268 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:14:59,273 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:14:59,323 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-22 01:14:59,329 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-22 01:14:59,336 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:59,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:14:59,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:59,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-22 01:14:59,353 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-22 01:14:59,364 WARN L141 QuantifierPusher]: treesize reduction 11, result has 92.0 percent of original size [2021-02-22 01:14:59,397 WARN L147 QuantifierPusher]: treesize reduction 11, result has 92.0 percent of original size 126 [2021-02-22 01:14:59,403 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:14:59,409 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:14:59,415 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-22 01:14:59,421 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-22 01:14:59,474 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:59,476 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:59,480 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:14:59,482 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:14:59,488 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:14:59,493 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:14:59,499 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-22 01:14:59,505 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-22 01:14:59,558 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-22 01:14:59,560 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-22 01:14:59,563 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 01:14:59,567 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 01:14:59,568 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 01:14:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:14:59,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:59,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:14:59,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:59,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:59,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:59,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:59,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:59,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:14:59,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:14:59,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,041 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:15:00,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:15:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:00,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:15:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:00,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:15:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:00,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:15:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:00,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:15:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:00,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:15:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:00,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-22 01:15:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:00,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-22 01:15:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:15:00,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:00,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:00,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:15:00,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:00,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:00,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:00,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:00,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:00,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:00,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:00,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:00,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:15:00,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 01:15:00,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-22 01:15:00,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-02-22 01:15:00,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:00,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:00,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 01:15:00,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 01:15:00,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:00,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:00,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:15:00,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:00,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:15:00,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:00,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:15:00,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:15:00,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:15:00,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:15:00,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:15:00,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:15:00,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 01:15:00,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 01:15:00,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:00,558 WARN L141 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-02-22 01:15:00,559 WARN L147 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size 7 [2021-02-22 01:15:00,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 01:15:00,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:15:00,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:15:00,683 WARN L141 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-02-22 01:15:00,684 WARN L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-02-22 01:15:00,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:15:00,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 01:15:00,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:00,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:00,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:00,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:15:00,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 01:15:00,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:00,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:15:00,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:00,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:15:01,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:15:01,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:15:01,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:15:01,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 01:15:01,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:15:01,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:01,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:01,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:01,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:01,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:01,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:01,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:01,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:01,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:01,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:15:01,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 01:15:01,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:01,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 01:15:01,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 01:15:01,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 01:15:01,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 01:15:01,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:01,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:01,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 01:15:01,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 01:15:01,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:15:01,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-22 01:15:01,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:15:01,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:15:01,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986399074] [2021-02-22 01:15:01,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:15:01,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-02-22 01:15:01,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075070794] [2021-02-22 01:15:01,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-22 01:15:01,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:15:01,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-22 01:15:01,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2021-02-22 01:15:01,563 INFO L87 Difference]: Start difference. First operand 1449 states and 1709 transitions. Second operand 40 states. [2021-02-22 01:15:02,227 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:02,950 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:15:03,406 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-22 01:15:03,823 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:15:04,234 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-22 01:15:04,657 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:15:05,180 WARN L202 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:15:05,647 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:15:06,080 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-22 01:15:06,561 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:15:06,995 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:15:07,507 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-22 01:15:08,060 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:15:08,616 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-22 01:15:09,111 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:15:09,711 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:15:10,242 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:15:10,760 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:15:11,282 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:15:11,805 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-22 01:15:12,727 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:15:13,495 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:15:14,005 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:15:14,478 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:15:14,912 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 01:15:15,361 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:15:15,852 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 01:15:16,283 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:15:16,714 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 01:15:17,880 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-02-22 01:15:18,965 WARN L202 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2021-02-22 01:15:20,233 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:15:22,310 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:15:23,688 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:15:24,268 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-22 01:15:24,726 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:15:25,808 WARN L202 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 214 [2021-02-22 01:15:26,896 WARN L202 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 216 [2021-02-22 01:15:27,586 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:15:28,101 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:15:28,753 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-22 01:15:29,338 WARN L202 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:15:29,790 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:15:30,337 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:15:31,574 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:15:32,264 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:15:33,041 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:15:33,913 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-22 01:15:34,379 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-22 01:15:34,950 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-22 01:15:36,532 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-22 01:15:37,421 WARN L202 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2021-02-22 01:15:38,911 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:15:39,260 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:39,678 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:40,110 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 01:15:40,540 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:41,039 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 01:15:41,421 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:15:41,825 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:15:46,135 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-22 01:15:46,806 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:15:47,471 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-22 01:15:48,146 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-22 01:15:52,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:15:52,310 INFO L93 Difference]: Finished difference Result 2466 states and 3181 transitions. [2021-02-22 01:15:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 313 states. [2021-02-22 01:15:52,311 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 210 [2021-02-22 01:15:52,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:15:52,319 INFO L225 Difference]: With dead ends: 2466 [2021-02-22 01:15:52,320 INFO L226 Difference]: Without dead ends: 1060 [2021-02-22 01:15:52,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 347 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52666 ImplicationChecksByTransitivity, 42.0s TimeCoverageRelationStatistics Valid=9844, Invalid=111608, Unknown=0, NotChecked=0, Total=121452 [2021-02-22 01:15:52,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2021-02-22 01:15:52,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 690. [2021-02-22 01:15:52,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2021-02-22 01:15:52,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 791 transitions. [2021-02-22 01:15:52,656 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 791 transitions. Word has length 210 [2021-02-22 01:15:52,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:15:52,656 INFO L480 AbstractCegarLoop]: Abstraction has 690 states and 791 transitions. [2021-02-22 01:15:52,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-22 01:15:52,656 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 791 transitions. [2021-02-22 01:15:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-02-22 01:15:52,662 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:15:52,663 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:15:52,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 01:15:52,664 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:15:52,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:15:52,664 INFO L82 PathProgramCache]: Analyzing trace with hash -340932341, now seen corresponding path program 1 times [2021-02-22 01:15:52,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:15:52,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645577628] [2021-02-22 01:15:52,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:15:52,682 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-22 01:15:52,688 INFO L168 Benchmark]: Toolchain (without parser) took 87717.93 ms. Allocated memory was 151.0 MB in the beginning and 671.1 MB in the end (delta: 520.1 MB). Free memory was 126.3 MB in the beginning and 489.4 MB in the end (delta: -363.1 MB). Peak memory consumption was 159.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:15:52,689 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:15:52,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.80 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 103.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:15:52,690 INFO L168 Benchmark]: Boogie Preprocessor took 162.52 ms. Allocated memory is still 151.0 MB. Free memory was 103.8 MB in the beginning and 100.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-22 01:15:52,690 INFO L168 Benchmark]: RCFGBuilder took 1336.63 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 99.8 MB in the beginning and 117.1 MB in the end (delta: -17.2 MB). Peak memory consumption was 32.8 MB. Max. memory is 8.0 GB. [2021-02-22 01:15:52,690 INFO L168 Benchmark]: TraceAbstraction took 85612.58 ms. Allocated memory was 181.4 MB in the beginning and 671.1 MB in the end (delta: 489.7 MB). Free memory was 116.6 MB in the beginning and 489.4 MB in the end (delta: -372.9 MB). Peak memory consumption was 116.8 MB. Max. memory is 8.0 GB. [2021-02-22 01:15:52,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 582.80 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 103.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 162.52 ms. Allocated memory is still 151.0 MB. Free memory was 103.8 MB in the beginning and 100.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1336.63 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 99.8 MB in the beginning and 117.1 MB in the end (delta: -17.2 MB). Peak memory consumption was 32.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 85612.58 ms. Allocated memory was 181.4 MB in the beginning and 671.1 MB in the end (delta: 489.7 MB). Free memory was 116.6 MB in the beginning and 489.4 MB in the end (delta: -372.9 MB). Peak memory consumption was 116.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...