/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-36cd7be [2021-02-24 03:38:48,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:38:48,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:38:49,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:38:49,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:38:49,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:38:49,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:38:49,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:38:49,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:38:49,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:38:49,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:38:49,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:38:49,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:38:49,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:38:49,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:38:49,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:38:49,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:38:49,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:38:49,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:38:49,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:38:49,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:38:49,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:38:49,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:38:49,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:38:49,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 03:38:49,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 03:38:49,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 03:38:49,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 03:38:49,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 03:38:49,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 03:38:49,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 03:38:49,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 03:38:49,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 03:38:49,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 03:38:49,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 03:38:49,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 03:38:49,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 03:38:49,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 03:38:49,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:38:49,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:38:49,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:38:49,132 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:38:49,154 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:38:49,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:38:49,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:38:49,158 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:38:49,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:38:49,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:38:49,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:38:49,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:38:49,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:38:49,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:38:49,161 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:38:49,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:38:49,161 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:38:49,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:38:49,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:38:49,162 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:38:49,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:38:49,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:38:49,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:38:49,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:38:49,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:38:49,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:38:49,164 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:38:49,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:38:49,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:38:49,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:38:49,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:38:49,585 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:38:49,585 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:38:49,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2021-02-24 03:38:49,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4258f1f1d/04aafbeb68b94ea1bf656a9ac8398a93/FLAG59e652e1d [2021-02-24 03:38:50,387 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:38:50,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2021-02-24 03:38:50,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4258f1f1d/04aafbeb68b94ea1bf656a9ac8398a93/FLAG59e652e1d [2021-02-24 03:38:50,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4258f1f1d/04aafbeb68b94ea1bf656a9ac8398a93 [2021-02-24 03:38:50,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:38:50,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:38:50,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:38:50,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:38:50,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:38:50,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:38:50" (1/1) ... [2021-02-24 03:38:50,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a192993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:50, skipping insertion in model container [2021-02-24 03:38:50,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:38:50" (1/1) ... [2021-02-24 03:38:50,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:38:50,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:38:51,029 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] [2021-02-24 03:38:51,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:38:51,153 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:38:51,195 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] [2021-02-24 03:38:51,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:38:51,275 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:38:51,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:51 WrapperNode [2021-02-24 03:38:51,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:38:51,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:38:51,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:38:51,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:38:51,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:51" (1/1) ... [2021-02-24 03:38:51,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:51" (1/1) ... [2021-02-24 03:38:51,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:51" (1/1) ... [2021-02-24 03:38:51,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:51" (1/1) ... [2021-02-24 03:38:51,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:51" (1/1) ... [2021-02-24 03:38:51,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:51" (1/1) ... [2021-02-24 03:38:51,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:51" (1/1) ... [2021-02-24 03:38:51,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:38:51,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:38:51,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:38:51,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:38:51,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:51" (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 [2021-02-24 03:38:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:38:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:38:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-24 03:38:51,469 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:38:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-24 03:38:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-24 03:38:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-24 03:38:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-24 03:38:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:38:51,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-24 03:38:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-24 03:38:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-24 03:38:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-24 03:38:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-24 03:38:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-24 03:38:51,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-24 03:38:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-24 03:38:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-24 03:38:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-24 03:38:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-24 03:38:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-24 03:38:51,472 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-24 03:38:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-24 03:38:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-24 03:38:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-24 03:38:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-24 03:38:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-24 03:38:51,473 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-24 03:38:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-24 03:38:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-24 03:38:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-24 03:38:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-24 03:38:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-24 03:38:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-24 03:38:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-24 03:38:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-24 03:38:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-24 03:38:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-24 03:38:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-24 03:38:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-24 03:38:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-24 03:38:51,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-24 03:38:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:38:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:38:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:38:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:38:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:38:51,476 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-24 03:38:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-24 03:38:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-24 03:38:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-24 03:38:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-24 03:38:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-24 03:38:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-24 03:38:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-24 03:38:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-24 03:38:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-24 03:38:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-24 03:38:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-24 03:38:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-24 03:38:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:38:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-24 03:38:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-24 03:38:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-24 03:38:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-24 03:38:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-24 03:38:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-24 03:38:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-24 03:38:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-24 03:38:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-24 03:38:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-24 03:38:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-24 03:38:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-24 03:38:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-24 03:38:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-24 03:38:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-24 03:38:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-24 03:38:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-24 03:38:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-24 03:38:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-24 03:38:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 03:38:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 03:38:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-24 03:38:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 03:38:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 03:38:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:38:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 03:38:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-24 03:38:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:38:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-24 03:38:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-24 03:38:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:38:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-24 03:38:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-24 03:38:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-24 03:38:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:38:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:38:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:38:52,569 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:38:52,570 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-24 03:38:52,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:38:52 BoogieIcfgContainer [2021-02-24 03:38:52,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:38:52,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:38:52,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:38:52,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:38:52,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:38:50" (1/3) ... [2021-02-24 03:38:52,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9c9709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:38:52, skipping insertion in model container [2021-02-24 03:38:52,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:38:51" (2/3) ... [2021-02-24 03:38:52,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9c9709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:38:52, skipping insertion in model container [2021-02-24 03:38:52,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:38:52" (3/3) ... [2021-02-24 03:38:52,581 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2021-02-24 03:38:52,588 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:38:52,594 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:38:52,614 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:38:52,639 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:38:52,639 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:38:52,639 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:38:52,639 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:38:52,639 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:38:52,640 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:38:52,640 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:38:52,640 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:38:52,664 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2021-02-24 03:38:52,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-24 03:38:52,685 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:52,686 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] [2021-02-24 03:38:52,686 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:52,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:52,693 INFO L82 PathProgramCache]: Analyzing trace with hash 532742290, now seen corresponding path program 1 times [2021-02-24 03:38:52,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:52,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754981947] [2021-02-24 03:38:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:52,788 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:53,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:53,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:53,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:53,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:53,535 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:53,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:53,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:53,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:53,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:53,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:53,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:53,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:53,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:53,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:53,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:53,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:53,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:53,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:53,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:53,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:53,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-24 03:38:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:53,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:53,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:53,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:38:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:53,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:53,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:53,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:53,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754981947] [2021-02-24 03:38:53,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:53,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 03:38:53,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495343636] [2021-02-24 03:38:53,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 03:38:53,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:53,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 03:38:53,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:38:53,720 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 3 states. [2021-02-24 03:38:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:55,311 INFO L93 Difference]: Finished difference Result 509 states and 605 transitions. [2021-02-24 03:38:55,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 03:38:55,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-24 03:38:55,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:55,342 INFO L225 Difference]: With dead ends: 509 [2021-02-24 03:38:55,343 INFO L226 Difference]: Without dead ends: 315 [2021-02-24 03:38:55,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 03:38:55,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-02-24 03:38:55,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 272. [2021-02-24 03:38:55,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2021-02-24 03:38:55,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 296 transitions. [2021-02-24 03:38:55,564 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 296 transitions. Word has length 147 [2021-02-24 03:38:55,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:55,565 INFO L480 AbstractCegarLoop]: Abstraction has 272 states and 296 transitions. [2021-02-24 03:38:55,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 03:38:55,565 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 296 transitions. [2021-02-24 03:38:55,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-24 03:38:55,570 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:55,570 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] [2021-02-24 03:38:55,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:38:55,571 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:55,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:55,572 INFO L82 PathProgramCache]: Analyzing trace with hash 37641117, now seen corresponding path program 1 times [2021-02-24 03:38:55,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:55,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131737444] [2021-02-24 03:38:55,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:55,577 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:55,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:55,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:55,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:55,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:55,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:55,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:55,976 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:55,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:56,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:56,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:56,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:56,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:56,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:56,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:56,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:56,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:56,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:56,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:56,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:56,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:56,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:56,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:56,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-24 03:38:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:56,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:56,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:56,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:38:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:56,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:56,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:56,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:56,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131737444] [2021-02-24 03:38:56,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:56,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 03:38:56,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258022306] [2021-02-24 03:38:56,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 03:38:56,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:56,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 03:38:56,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 03:38:56,093 INFO L87 Difference]: Start difference. First operand 272 states and 296 transitions. Second operand 4 states. [2021-02-24 03:38:56,722 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:38:57,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:38:57,733 INFO L93 Difference]: Finished difference Result 419 states and 471 transitions. [2021-02-24 03:38:57,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 03:38:57,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-24 03:38:57,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:38:57,739 INFO L225 Difference]: With dead ends: 419 [2021-02-24 03:38:57,739 INFO L226 Difference]: Without dead ends: 298 [2021-02-24 03:38:57,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 03:38:57,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-02-24 03:38:57,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 262. [2021-02-24 03:38:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-02-24 03:38:57,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 283 transitions. [2021-02-24 03:38:57,881 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 283 transitions. Word has length 148 [2021-02-24 03:38:57,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:38:57,882 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 283 transitions. [2021-02-24 03:38:57,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 03:38:57,882 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 283 transitions. [2021-02-24 03:38:57,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-24 03:38:57,884 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:38:57,885 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] [2021-02-24 03:38:57,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:38:57,885 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:38:57,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:38:57,886 INFO L82 PathProgramCache]: Analyzing trace with hash 423990714, now seen corresponding path program 1 times [2021-02-24 03:38:57,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:38:57,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506936677] [2021-02-24 03:38:57,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:38:57,890 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:38:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:58,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:58,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:58,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:58,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:38:58,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:58,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:58,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:38:58,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:58,361 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:38:58,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:38:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:58,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:58,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:38:58,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:38:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:58,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:58,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:38:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:58,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:58,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:38:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:58,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:58,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:38:58,483 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:38:58,484 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:38:58,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:38:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:58,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:58,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-24 03:38:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:58,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-24 03:38:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:38:58,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:38:58,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:38:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:38:58,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506936677] [2021-02-24 03:38:58,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:38:58,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 03:38:58,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257153771] [2021-02-24 03:38:58,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 03:38:58,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:38:58,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 03:38:58,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:38:58,568 INFO L87 Difference]: Start difference. First operand 262 states and 283 transitions. Second operand 9 states. [2021-02-24 03:38:59,041 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:38:59,389 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:38:59,659 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:38:59,975 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:00,294 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:00,618 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:01,566 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:39:03,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:39:03,681 INFO L93 Difference]: Finished difference Result 687 states and 790 transitions. [2021-02-24 03:39:03,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 03:39:03,682 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-24 03:39:03,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:39:03,688 INFO L225 Difference]: With dead ends: 687 [2021-02-24 03:39:03,689 INFO L226 Difference]: Without dead ends: 540 [2021-02-24 03:39:03,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-24 03:39:03,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-02-24 03:39:03,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 473. [2021-02-24 03:39:03,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2021-02-24 03:39:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 529 transitions. [2021-02-24 03:39:03,940 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 529 transitions. Word has length 157 [2021-02-24 03:39:03,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:39:03,941 INFO L480 AbstractCegarLoop]: Abstraction has 473 states and 529 transitions. [2021-02-24 03:39:03,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 03:39:03,941 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 529 transitions. [2021-02-24 03:39:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-24 03:39:03,945 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:39:03,945 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] [2021-02-24 03:39:03,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:39:03,946 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:39:03,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:39:03,947 INFO L82 PathProgramCache]: Analyzing trace with hash -518020844, now seen corresponding path program 1 times [2021-02-24 03:39:03,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:39:03,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143965711] [2021-02-24 03:39:03,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:39:03,951 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:39:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:04,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:04,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:04,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:04,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:04,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:39:04,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:39:04,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:39:04,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:39:04,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:39:04,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:39:04,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:04,332 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:39:04,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:39:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:04,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:04,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:39:04,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:39:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:04,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:04,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:39:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:04,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:04,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:39:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:04,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:04,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:39:04,419 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-24 03:39:04,420 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-24 03:39:04,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:39:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:04,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:04,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:39:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:04,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:04,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-24 03:39:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:04,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:04,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:04,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:04,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-24 03:39:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:04,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:04,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:39:04,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143965711] [2021-02-24 03:39:04,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:39:04,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 03:39:04,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565122006] [2021-02-24 03:39:04,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 03:39:04,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:39:04,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 03:39:04,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-24 03:39:04,571 INFO L87 Difference]: Start difference. First operand 473 states and 529 transitions. Second operand 14 states. [2021-02-24 03:39:05,162 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:39:05,544 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:39:05,805 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:39:06,130 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:06,414 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:06,671 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:07,254 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-24 03:39:08,482 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:08,895 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:09,440 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:09,808 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:39:10,112 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:39:10,423 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:39:10,738 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:39:11,052 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:11,348 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:11,775 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:12,156 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:39:12,497 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:12,918 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:14,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:39:14,822 INFO L93 Difference]: Finished difference Result 1629 states and 2040 transitions. [2021-02-24 03:39:14,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-24 03:39:14,823 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 166 [2021-02-24 03:39:14,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:39:14,834 INFO L225 Difference]: With dead ends: 1629 [2021-02-24 03:39:14,834 INFO L226 Difference]: Without dead ends: 1271 [2021-02-24 03:39:14,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-24 03:39:14,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2021-02-24 03:39:15,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1136. [2021-02-24 03:39:15,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1136 states. [2021-02-24 03:39:15,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1342 transitions. [2021-02-24 03:39:15,479 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1342 transitions. Word has length 166 [2021-02-24 03:39:15,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:39:15,480 INFO L480 AbstractCegarLoop]: Abstraction has 1136 states and 1342 transitions. [2021-02-24 03:39:15,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 03:39:15,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1342 transitions. [2021-02-24 03:39:15,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-24 03:39:15,492 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:39:15,494 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] [2021-02-24 03:39:15,494 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:39:15,495 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:39:15,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:39:15,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1494626536, now seen corresponding path program 1 times [2021-02-24 03:39:15,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:39:15,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886123184] [2021-02-24 03:39:15,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:39:15,499 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:39:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:15,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:15,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:15,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:15,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:15,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:15,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:15,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:15,808 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:39:15,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:39:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:15,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:15,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:15,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:39:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:15,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:15,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:39:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:15,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:15,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:39:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:15,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:15,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:39:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:15,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:15,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-24 03:39:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:15,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:15,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-24 03:39:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:15,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:15,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-24 03:39:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:15,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:15,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-24 03:39:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:15,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:15,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:16,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:39:16,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886123184] [2021-02-24 03:39:16,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:39:16,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:39:16,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805072428] [2021-02-24 03:39:16,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:39:16,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:39:16,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:39:16,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:39:16,022 INFO L87 Difference]: Start difference. First operand 1136 states and 1342 transitions. Second operand 6 states. [2021-02-24 03:39:16,496 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:39:18,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:39:18,961 INFO L93 Difference]: Finished difference Result 2593 states and 3251 transitions. [2021-02-24 03:39:18,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 03:39:18,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2021-02-24 03:39:18,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:39:18,973 INFO L225 Difference]: With dead ends: 2593 [2021-02-24 03:39:18,973 INFO L226 Difference]: Without dead ends: 1572 [2021-02-24 03:39:18,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-24 03:39:18,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2021-02-24 03:39:19,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1449. [2021-02-24 03:39:19,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1449 states. [2021-02-24 03:39:19,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1709 transitions. [2021-02-24 03:39:19,584 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1709 transitions. Word has length 171 [2021-02-24 03:39:19,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:39:19,584 INFO L480 AbstractCegarLoop]: Abstraction has 1449 states and 1709 transitions. [2021-02-24 03:39:19,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:39:19,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1709 transitions. [2021-02-24 03:39:19,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-24 03:39:19,590 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:39:19,590 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] [2021-02-24 03:39:19,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:39:19,591 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:39:19,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:39:19,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1115653263, now seen corresponding path program 1 times [2021-02-24 03:39:19,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:39:19,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519250238] [2021-02-24 03:39:19,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:39:19,680 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:39:19,702 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:39:19,713 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:39:19,719 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:39:19,764 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:39:19,773 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:39:19,778 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:39:19,781 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:39:19,786 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:39:19,792 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:39:19,798 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:39:19,804 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:39:19,845 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:39:19,847 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:39:19,851 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:39:19,853 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:39:19,858 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:39:19,863 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:39:19,868 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:39:19,874 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:39:19,916 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:39:19,918 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:39:19,921 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:39:19,924 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:39:19,928 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:39:19,933 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:39:19,938 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:39:19,944 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:39:19,985 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:39:19,986 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:39:19,990 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:39:19,992 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:39:19,996 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:39:20,001 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:39:20,006 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:39:20,011 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:39:20,051 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:39:20,053 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:39:20,056 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:39:20,058 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:39:20,062 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:39:20,067 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:39:20,072 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:39:20,077 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:39:20,117 WARN L141 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size [2021-02-24 03:39:20,121 INFO L723 QuantifierPusher]: Distributing 10 disjuncts over 3 conjuncts [2021-02-24 03:39:20,127 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-24 03:39:20,142 WARN L147 QuantifierPusher]: treesize reduction 6, result has 87.8 percent of original size 43 [2021-02-24 03:39:20,150 WARN L141 QuantifierPusher]: treesize reduction 11, result has 92.0 percent of original size [2021-02-24 03:39:20,156 WARN L147 QuantifierPusher]: treesize reduction 11, result has 92.0 percent of original size 126 [2021-02-24 03:39:20,160 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:39:20,165 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:39:20,169 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size [2021-02-24 03:39:20,174 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.6 percent of original size 86 [2021-02-24 03:39:20,214 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:39:20,215 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:39:20,218 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:39:20,220 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:39:20,223 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:39:20,228 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:39:20,232 WARN L141 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size [2021-02-24 03:39:20,237 WARN L147 QuantifierPusher]: treesize reduction 5, result has 94.4 percent of original size 84 [2021-02-24 03:39:20,276 WARN L141 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size [2021-02-24 03:39:20,277 WARN L147 QuantifierPusher]: treesize reduction 41, result has 16.3 percent of original size 8 [2021-02-24 03:39:20,280 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-24 03:39:20,284 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-24 03:39:20,285 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 03:39:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:20,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:20,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:20,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:20,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,600 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-24 03:39:20,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:39:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:20,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-24 03:39:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:20,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-24 03:39:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:20,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-24 03:39:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:20,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-24 03:39:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:20,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-24 03:39:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:20,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-24 03:39:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:20,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-24 03:39:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:39:20,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:20,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 03:39:20,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:39:20,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:39:20,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:39:20,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:39:20,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:39:20,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:39:20,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,735 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:39:20,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:39:20,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:39:20,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 03:39:20,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-24 03:39:20,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-02-24 03:39:20,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:20,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:20,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 03:39:20,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:39:20,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:39:20,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:39:20,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:39:20,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:20,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:39:20,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:39:20,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:39:20,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 03:39:20,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:39:20,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:39:20,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:20,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:39:20,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:39:20,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 03:39:20,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:20,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:39:21,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:39:21,033 WARN L141 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-02-24 03:39:21,033 WARN L147 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size 7 [2021-02-24 03:39:21,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 03:39:21,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 03:39:21,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:39:21,134 WARN L141 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-02-24 03:39:21,135 WARN L147 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size 10 [2021-02-24 03:39:21,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 03:39:21,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:39:21,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:39:21,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:39:21,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:21,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:39:21,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 03:39:21,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:39:21,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 03:39:21,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 03:39:21,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 03:39:21,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 03:39:21,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:39:21,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 03:39:21,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:39:21,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:39:21,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:39:21,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:39:21,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:39:21,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:39:21,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:39:21,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:39:21,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:39:21,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:39:21,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 03:39:21,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 03:39:21,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:39:21,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 03:39:21,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 03:39:21,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:39:21,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 03:39:21,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:39:21,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:39:21,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-24 03:39:21,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 03:39:21,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 03:39:21,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 03:39:21,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:39:21,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:39:21,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519250238] [2021-02-24 03:39:21,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:39:21,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-02-24 03:39:21,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52735670] [2021-02-24 03:39:21,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-24 03:39:21,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:39:21,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-24 03:39:21,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2021-02-24 03:39:21,900 INFO L87 Difference]: Start difference. First operand 1449 states and 1709 transitions. Second operand 40 states. [2021-02-24 03:39:22,477 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:23,054 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:39:23,373 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:39:23,727 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:39:24,097 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2021-02-24 03:39:24,414 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:39:24,758 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:39:25,083 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:39:25,418 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:39:25,790 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:39:26,136 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:39:26,509 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:39:26,901 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:39:27,323 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2021-02-24 03:39:27,744 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:39:28,199 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:39:28,618 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:29,037 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:39:29,459 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:29,886 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-24 03:39:30,627 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:39:31,254 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:39:31,639 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:39:32,032 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:39:32,369 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:39:32,713 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:33,054 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:39:33,401 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:33,770 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-24 03:39:34,771 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-02-24 03:39:35,649 WARN L202 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2021-02-24 03:39:36,784 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-24 03:39:38,650 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:39:39,885 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:40,400 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-24 03:39:40,778 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:41,718 WARN L202 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 214 [2021-02-24 03:39:42,618 WARN L202 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 216 [2021-02-24 03:39:43,126 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:43,545 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:39:44,143 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2021-02-24 03:39:44,600 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:39:44,990 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:45,455 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:46,555 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-24 03:39:47,145 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-24 03:39:47,809 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:48,560 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-24 03:39:48,967 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2021-02-24 03:39:49,416 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-02-24 03:39:50,776 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-02-24 03:39:51,548 WARN L202 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2021-02-24 03:39:52,825 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-24 03:39:53,179 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:53,500 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:53,856 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:39:54,195 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:54,606 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-24 03:39:54,919 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-24 03:39:55,270 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-24 03:39:59,032 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-24 03:39:59,553 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:40:00,124 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-24 03:40:00,668 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-02-24 03:40:04,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:40:04,268 INFO L93 Difference]: Finished difference Result 2466 states and 3181 transitions. [2021-02-24 03:40:04,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 313 states. [2021-02-24 03:40:04,273 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 210 [2021-02-24 03:40:04,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:40:04,281 INFO L225 Difference]: With dead ends: 2466 [2021-02-24 03:40:04,282 INFO L226 Difference]: Without dead ends: 1060 [2021-02-24 03:40:04,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 347 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52666 ImplicationChecksByTransitivity, 34.7s TimeCoverageRelationStatistics Valid=9844, Invalid=111608, Unknown=0, NotChecked=0, Total=121452 [2021-02-24 03:40:04,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2021-02-24 03:40:04,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 690. [2021-02-24 03:40:04,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2021-02-24 03:40:04,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 791 transitions. [2021-02-24 03:40:04,663 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 791 transitions. Word has length 210 [2021-02-24 03:40:04,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:40:04,664 INFO L480 AbstractCegarLoop]: Abstraction has 690 states and 791 transitions. [2021-02-24 03:40:04,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-24 03:40:04,664 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 791 transitions. [2021-02-24 03:40:04,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-02-24 03:40:04,670 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:40:04,670 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] [2021-02-24 03:40:04,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:40:04,671 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:40:04,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:40:04,672 INFO L82 PathProgramCache]: Analyzing trace with hash -340932341, now seen corresponding path program 1 times [2021-02-24 03:40:04,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:40:04,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152631579] [2021-02-24 03:40:04,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:40:04,689 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 03:40:04,694 INFO L168 Benchmark]: Toolchain (without parser) took 74010.29 ms. Allocated memory was 151.0 MB in the beginning and 846.2 MB in the end (delta: 695.2 MB). Free memory was 126.6 MB in the beginning and 732.8 MB in the end (delta: -606.2 MB). Peak memory consumption was 89.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:40:04,694 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:40:04,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.61 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 104.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:40:04,696 INFO L168 Benchmark]: Boogie Preprocessor took 97.20 ms. Allocated memory is still 151.0 MB. Free memory was 104.1 MB in the beginning and 100.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:40:04,697 INFO L168 Benchmark]: RCFGBuilder took 1198.12 ms. Allocated memory is still 151.0 MB. Free memory was 100.0 MB in the beginning and 112.8 MB in the end (delta: -12.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:40:04,697 INFO L168 Benchmark]: TraceAbstraction took 72118.88 ms. Allocated memory was 151.0 MB in the beginning and 846.2 MB in the end (delta: 695.2 MB). Free memory was 112.3 MB in the beginning and 732.8 MB in the end (delta: -620.6 MB). Peak memory consumption was 75.2 MB. Max. memory is 8.0 GB. [2021-02-24 03:40:04,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 580.61 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 104.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 97.20 ms. Allocated memory is still 151.0 MB. Free memory was 104.1 MB in the beginning and 100.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1198.12 ms. Allocated memory is still 151.0 MB. Free memory was 100.0 MB in the beginning and 112.8 MB in the end (delta: -12.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 72118.88 ms. Allocated memory was 151.0 MB in the beginning and 846.2 MB in the end (delta: 695.2 MB). Free memory was 112.3 MB in the beginning and 732.8 MB in the end (delta: -620.6 MB). Peak memory consumption was 75.2 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...