/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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:13:02,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:13:02,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:13:02,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 01:13:02,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 01:13:02,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 01:13:02,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 01:13:02,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 01:13:02,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 01:13:02,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 01:13:02,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 01:13:02,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 01:13:02,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:13:02,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:13:02,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:13:02,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:13:02,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:13:02,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:13:02,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:13:02,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:13:02,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:13:02,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:13:02,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:13:02,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:13:02,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 01:13:02,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 01:13:02,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 01:13:02,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 01:13:02,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 01:13:02,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 01:13:02,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 01:13:02,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 01:13:02,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 01:13:02,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 01:13:02,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 01:13:02,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 01:13:02,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 01:13:02,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 01:13:02,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:13:02,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:13:02,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:13:02,543 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:13:02,562 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:13:02,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:13:02,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:13:02,567 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:13:02,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:13:02,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:13:02,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:13:02,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:13:02,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:13:02,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:13:02,569 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:13:02,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:13:02,569 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:13:02,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:13:02,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:13:02,570 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:13:02,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:13:02,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:13:02,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:13:02,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:13:02,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:13:02,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:13:02,571 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:13:02,572 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:13:02,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:13:02,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:13:02,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:13:02,976 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:13:02,977 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:13:02,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2021-02-22 01:13:03,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec4e4852/a4015c00796f47e79b8cacfb0bac36b7/FLAGbb6259446 [2021-02-22 01:13:03,765 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:13:03,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product38.cil.c [2021-02-22 01:13:03,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec4e4852/a4015c00796f47e79b8cacfb0bac36b7/FLAGbb6259446 [2021-02-22 01:13:04,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cec4e4852/a4015c00796f47e79b8cacfb0bac36b7 [2021-02-22 01:13:04,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:13:04,077 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:13:04,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:13:04,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:13:04,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:13:04,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:13:04" (1/1) ... [2021-02-22 01:13:04,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215df84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04, skipping insertion in model container [2021-02-22 01:13:04,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:13:04" (1/1) ... [2021-02-22 01:13:04,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:13:04,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:13:04,417 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_product38.cil.c[3977,3990] [2021-02-22 01:13:04,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:13:04,640 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:13:04,702 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_product38.cil.c[3977,3990] [2021-02-22 01:13:04,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:13:04,850 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:13:04,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04 WrapperNode [2021-02-22 01:13:04,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:13:04,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:13:04,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:13:04,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:13:04,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04" (1/1) ... [2021-02-22 01:13:04,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04" (1/1) ... [2021-02-22 01:13:04,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04" (1/1) ... [2021-02-22 01:13:04,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04" (1/1) ... [2021-02-22 01:13:04,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04" (1/1) ... [2021-02-22 01:13:04,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04" (1/1) ... [2021-02-22 01:13:04,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04" (1/1) ... [2021-02-22 01:13:05,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:13:05,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:13:05,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:13:05,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:13:05,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:13:05,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:13:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:13:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 01:13:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:13:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 01:13:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 01:13:05,132 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 01:13:05,133 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 01:13:05,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:13:05,133 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 01:13:05,133 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 01:13:05,133 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 01:13:05,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 01:13:05,134 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 01:13:05,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 01:13:05,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-22 01:13:05,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 01:13:05,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-22 01:13:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 01:13:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 01:13:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 01:13:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-22 01:13:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 01:13:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 01:13:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 01:13:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 01:13:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 01:13:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 01:13:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-22 01:13:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-22 01:13:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 01:13:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 01:13:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 01:13:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 01:13:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 01:13:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 01:13:05,138 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 01:13:05,138 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 01:13:05,138 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 01:13:05,138 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 01:13:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:13:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:13:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:13:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:13:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:13:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 01:13:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 01:13:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 01:13:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 01:13:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 01:13:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 01:13:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 01:13:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 01:13:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 01:13:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 01:13:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 01:13:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 01:13:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 01:13:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:13:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 01:13:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 01:13:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 01:13:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 01:13:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-22 01:13:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 01:13:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 01:13:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-22 01:13:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-22 01:13:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 01:13:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 01:13:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 01:13:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 01:13:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-22 01:13:05,143 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-22 01:13:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 01:13:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 01:13:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 01:13:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 01:13:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 01:13:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 01:13:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:13:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 01:13:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 01:13:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:13:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 01:13:05,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 01:13:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:13:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 01:13:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 01:13:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 01:13:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 01:13:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:13:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:13:05,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:13:06,401 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:13:06,401 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 01:13:06,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:13:06 BoogieIcfgContainer [2021-02-22 01:13:06,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:13:06,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:13:06,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:13:06,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:13:06,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:13:04" (1/3) ... [2021-02-22 01:13:06,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f44a0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:13:06, skipping insertion in model container [2021-02-22 01:13:06,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:13:04" (2/3) ... [2021-02-22 01:13:06,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f44a0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:13:06, skipping insertion in model container [2021-02-22 01:13:06,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:13:06" (3/3) ... [2021-02-22 01:13:06,417 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2021-02-22 01:13:06,425 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:13:06,430 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:13:06,451 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:13:06,480 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:13:06,481 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:13:06,481 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:13:06,481 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:13:06,481 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:13:06,482 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:13:06,482 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:13:06,482 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:13:06,515 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states. [2021-02-22 01:13:06,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-22 01:13:06,537 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:13:06,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:13:06,538 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:13:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:13:06,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1630711049, now seen corresponding path program 1 times [2021-02-22 01:13:06,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:13:06,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592189921] [2021-02-22 01:13:06,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:13:06,643 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:13:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:06,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:06,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:06,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:06,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:07,311 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:13:07,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:13:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:07,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:07,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:07,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:13:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:07,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:07,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:07,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:13:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:07,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:07,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:07,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:13:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:07,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:07,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:07,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:13:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:07,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:07,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:07,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 01:13:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:07,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:07,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:07,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 01:13:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:07,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:07,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:07,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:13:07,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592189921] [2021-02-22 01:13:07,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:13:07,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 01:13:07,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318000922] [2021-02-22 01:13:07,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 01:13:07,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:13:07,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 01:13:07,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:13:07,664 INFO L87 Difference]: Start difference. First operand 316 states. Second operand 3 states. [2021-02-22 01:13:09,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:13:09,437 INFO L93 Difference]: Finished difference Result 492 states and 582 transitions. [2021-02-22 01:13:09,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 01:13:09,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-22 01:13:09,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:13:09,456 INFO L225 Difference]: With dead ends: 492 [2021-02-22 01:13:09,456 INFO L226 Difference]: Without dead ends: 306 [2021-02-22 01:13:09,462 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 [2021-02-22 01:13:09,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-02-22 01:13:09,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 264. [2021-02-22 01:13:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2021-02-22 01:13:09,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 285 transitions. [2021-02-22 01:13:09,689 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 285 transitions. Word has length 147 [2021-02-22 01:13:09,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:13:09,693 INFO L480 AbstractCegarLoop]: Abstraction has 264 states and 285 transitions. [2021-02-22 01:13:09,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 01:13:09,693 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 285 transitions. [2021-02-22 01:13:09,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-22 01:13:09,708 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:13:09,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:13:09,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:13:09,714 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:13:09,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:13:09,714 INFO L82 PathProgramCache]: Analyzing trace with hash 802421343, now seen corresponding path program 1 times [2021-02-22 01:13:09,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:13:09,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030253683] [2021-02-22 01:13:09,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:13:09,721 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:13:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:09,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:09,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:09,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:09,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:09,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:09,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:10,296 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:13:10,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:13:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:10,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:10,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:10,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:13:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:10,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:10,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:13:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:10,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:10,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:10,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:13:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:10,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:10,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:10,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:13:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:10,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:10,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:10,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 01:13:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:10,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:10,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:10,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:13:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:10,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:10,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:10,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:13:10,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030253683] [2021-02-22 01:13:10,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:13:10,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:13:10,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281554310] [2021-02-22 01:13:10,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:13:10,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:13:10,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:13:10,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:13:10,423 INFO L87 Difference]: Start difference. First operand 264 states and 285 transitions. Second operand 4 states. [2021-02-22 01:13:11,196 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:13:12,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:13:12,386 INFO L93 Difference]: Finished difference Result 404 states and 452 transitions. [2021-02-22 01:13:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:13:12,387 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-22 01:13:12,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:13:12,400 INFO L225 Difference]: With dead ends: 404 [2021-02-22 01:13:12,400 INFO L226 Difference]: Without dead ends: 289 [2021-02-22 01:13:12,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:13:12,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-02-22 01:13:12,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 254. [2021-02-22 01:13:12,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2021-02-22 01:13:12,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 272 transitions. [2021-02-22 01:13:12,520 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 272 transitions. Word has length 148 [2021-02-22 01:13:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:13:12,521 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 272 transitions. [2021-02-22 01:13:12,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:13:12,521 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 272 transitions. [2021-02-22 01:13:12,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-02-22 01:13:12,524 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:13:12,524 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] [2021-02-22 01:13:12,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:13:12,524 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:13:12,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:13:12,525 INFO L82 PathProgramCache]: Analyzing trace with hash -70419785, now seen corresponding path program 1 times [2021-02-22 01:13:12,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:13:12,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6814596] [2021-02-22 01:13:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:13:12,529 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:13:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:12,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:12,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:12,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:12,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:12,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:12,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:12,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:12,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:12,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:12,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:12,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:12,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:12,999 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:13:13,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:13:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:13,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:13,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:13,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:13:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:13,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:13,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:13,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:13:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:13,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:13,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:13,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:13:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:13,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:13,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:13,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:13,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:13:13,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:13,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:13:13,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:13:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:13,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:13,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:13,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 01:13:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:13,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:13,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:13,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-22 01:13:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:13,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:13,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:13,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-22 01:13:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:13,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:13,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:13:13,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6814596] [2021-02-22 01:13:13,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:13:13,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 01:13:13,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460490279] [2021-02-22 01:13:13,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 01:13:13,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:13:13,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 01:13:13,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 01:13:13,181 INFO L87 Difference]: Start difference. First operand 254 states and 272 transitions. Second operand 10 states. [2021-02-22 01:13:13,996 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:13:14,430 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:13:14,849 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-22 01:13:15,213 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:13:15,596 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:13:15,997 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:13:18,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:13:18,042 INFO L93 Difference]: Finished difference Result 450 states and 514 transitions. [2021-02-22 01:13:18,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 01:13:18,043 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2021-02-22 01:13:18,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:13:18,049 INFO L225 Difference]: With dead ends: 450 [2021-02-22 01:13:18,049 INFO L226 Difference]: Without dead ends: 311 [2021-02-22 01:13:18,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-22 01:13:18,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-02-22 01:13:18,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 254. [2021-02-22 01:13:18,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2021-02-22 01:13:18,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 271 transitions. [2021-02-22 01:13:18,171 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 271 transitions. Word has length 161 [2021-02-22 01:13:18,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:13:18,172 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 271 transitions. [2021-02-22 01:13:18,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 01:13:18,172 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 271 transitions. [2021-02-22 01:13:18,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-02-22 01:13:18,175 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:13:18,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:13:18,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:13:18,176 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:13:18,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:13:18,176 INFO L82 PathProgramCache]: Analyzing trace with hash -113146531, now seen corresponding path program 1 times [2021-02-22 01:13:18,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:13:18,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331378986] [2021-02-22 01:13:18,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:13:18,180 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:13:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:18,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:18,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:18,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:18,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:18,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,643 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:13:18,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:13:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:18,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:13:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:13:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:13:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:13:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 01:13:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:13:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:18,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:13:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:18,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:18,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:13:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-02-22 01:13:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-02-22 01:13:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:18,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:18,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:13:18,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331378986] [2021-02-22 01:13:18,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:13:18,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 01:13:18,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178041907] [2021-02-22 01:13:18,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 01:13:18,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:13:18,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 01:13:18,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-22 01:13:18,894 INFO L87 Difference]: Start difference. First operand 254 states and 271 transitions. Second operand 7 states. [2021-02-22 01:13:19,546 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:13:21,478 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:13:22,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:13:22,644 INFO L93 Difference]: Finished difference Result 630 states and 744 transitions. [2021-02-22 01:13:22,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-22 01:13:22,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2021-02-22 01:13:22,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:13:22,650 INFO L225 Difference]: With dead ends: 630 [2021-02-22 01:13:22,650 INFO L226 Difference]: Without dead ends: 491 [2021-02-22 01:13:22,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-02-22 01:13:22,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2021-02-22 01:13:22,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 364. [2021-02-22 01:13:22,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2021-02-22 01:13:22,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 390 transitions. [2021-02-22 01:13:22,819 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 390 transitions. Word has length 174 [2021-02-22 01:13:22,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:13:22,819 INFO L480 AbstractCegarLoop]: Abstraction has 364 states and 390 transitions. [2021-02-22 01:13:22,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 01:13:22,820 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 390 transitions. [2021-02-22 01:13:22,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-02-22 01:13:22,822 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:13:22,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:13:22,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:13:22,823 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:13:22,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:13:22,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1335545992, now seen corresponding path program 1 times [2021-02-22 01:13:22,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:13:22,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248901590] [2021-02-22 01:13:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:13:22,827 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:13:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:22,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:22,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:22,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:22,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:22,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:22,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:22,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:22,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:22,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:22,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,179 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:13:23,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:13:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:13:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:13:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:13:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:13:23,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:13:23,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:13:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 01:13:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:13:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:13:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:13:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:23,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:23,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:13:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:23,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:23,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 01:13:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-02-22 01:13:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-02-22 01:13:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:23,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:23,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:23,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:13:23,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248901590] [2021-02-22 01:13:23,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:13:23,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 01:13:23,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375150637] [2021-02-22 01:13:23,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 01:13:23,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:13:23,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 01:13:23,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-22 01:13:23,453 INFO L87 Difference]: Start difference. First operand 364 states and 390 transitions. Second operand 13 states. [2021-02-22 01:13:24,194 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:13:24,580 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:13:24,957 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:13:25,359 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:13:25,712 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:13:26,750 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:13:27,121 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:13:27,515 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:13:27,897 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:13:28,262 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:13:29,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:13:29,936 INFO L93 Difference]: Finished difference Result 745 states and 873 transitions. [2021-02-22 01:13:29,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-22 01:13:29,936 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 198 [2021-02-22 01:13:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:13:29,941 INFO L225 Difference]: With dead ends: 745 [2021-02-22 01:13:29,941 INFO L226 Difference]: Without dead ends: 496 [2021-02-22 01:13:29,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-02-22 01:13:29,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-02-22 01:13:30,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 370. [2021-02-22 01:13:30,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2021-02-22 01:13:30,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 396 transitions. [2021-02-22 01:13:30,113 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 396 transitions. Word has length 198 [2021-02-22 01:13:30,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:13:30,113 INFO L480 AbstractCegarLoop]: Abstraction has 370 states and 396 transitions. [2021-02-22 01:13:30,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 01:13:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 396 transitions. [2021-02-22 01:13:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-02-22 01:13:30,116 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:13:30,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:13:30,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:13:30,117 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:13:30,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:13:30,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1819627480, now seen corresponding path program 1 times [2021-02-22 01:13:30,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:13:30,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980291417] [2021-02-22 01:13:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:13:30,121 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:13:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:30,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:30,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:30,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:30,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:30,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:30,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:30,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:30,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:30,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:13:30,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,564 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:13:30,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:13:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:13:30,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:13:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:13:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:13:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:13:30,665 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 01:13:30,666 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 01:13:30,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:13:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-22 01:13:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:13:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:13:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:13:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 01:13:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 01:13:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-02-22 01:13:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:30,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:13:30,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-02-22 01:13:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:13:30,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:13:30,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:13:30,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:13:30,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980291417] [2021-02-22 01:13:30,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:13:30,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-22 01:13:30,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412273595] [2021-02-22 01:13:30,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-22 01:13:30,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:13:30,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-22 01:13:30,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-02-22 01:13:30,855 INFO L87 Difference]: Start difference. First operand 370 states and 396 transitions. Second operand 15 states. [2021-02-22 01:13:31,513 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:13:32,004 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:13:32,375 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:13:32,764 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:13:33,148 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:13:33,518 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:13:34,296 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:13:35,847 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:13:36,233 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:13:36,627 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:13:37,000 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:13:37,375 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:13:37,755 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:13:38,119 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:13:38,513 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:13:38,921 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 01:13:39,334 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:13:41,725 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:13:42,084 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:13:42,605 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:13:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:13:43,984 INFO L93 Difference]: Finished difference Result 1289 states and 1617 transitions. [2021-02-22 01:13:43,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-22 01:13:43,985 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 198 [2021-02-22 01:13:43,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:13:43,993 INFO L225 Difference]: With dead ends: 1289 [2021-02-22 01:13:43,993 INFO L226 Difference]: Without dead ends: 1034 [2021-02-22 01:13:43,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2021-02-22 01:13:43,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-02-22 01:13:44,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 735. [2021-02-22 01:13:44,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2021-02-22 01:13:44,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 812 transitions. [2021-02-22 01:13:44,422 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 812 transitions. Word has length 198 [2021-02-22 01:13:44,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:13:44,423 INFO L480 AbstractCegarLoop]: Abstraction has 735 states and 812 transitions. [2021-02-22 01:13:44,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-22 01:13:44,423 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 812 transitions. [2021-02-22 01:13:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-02-22 01:13:44,430 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:13:44,430 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:13:44,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 01:13:44,431 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:13:44,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:13:44,431 INFO L82 PathProgramCache]: Analyzing trace with hash 2037355814, now seen corresponding path program 1 times [2021-02-22 01:13:44,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:13:44,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650574494] [2021-02-22 01:13:44,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:13:44,489 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-22 01:13:44,493 INFO L168 Benchmark]: Toolchain (without parser) took 40428.49 ms. Allocated memory was 168.8 MB in the beginning and 467.7 MB in the end (delta: 298.8 MB). Free memory was 144.6 MB in the beginning and 243.6 MB in the end (delta: -99.0 MB). Peak memory consumption was 200.8 MB. Max. memory is 8.0 GB. [2021-02-22 01:13:44,494 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 168.8 MB. Free memory is still 141.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:13:44,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.83 ms. Allocated memory is still 168.8 MB. Free memory was 143.4 MB in the beginning and 122.1 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:13:44,494 INFO L168 Benchmark]: Boogie Preprocessor took 148.12 ms. Allocated memory is still 168.8 MB. Free memory was 122.0 MB in the beginning and 118.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-22 01:13:44,494 INFO L168 Benchmark]: RCFGBuilder took 1403.53 ms. Allocated memory was 168.8 MB in the beginning and 213.9 MB in the end (delta: 45.1 MB). Free memory was 118.0 MB in the beginning and 177.6 MB in the end (delta: -59.6 MB). Peak memory consumption was 57.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:13:44,495 INFO L168 Benchmark]: TraceAbstraction took 38083.66 ms. Allocated memory was 213.9 MB in the beginning and 467.7 MB in the end (delta: 253.8 MB). Free memory was 177.6 MB in the beginning and 243.6 MB in the end (delta: -66.0 MB). Peak memory consumption was 187.8 MB. Max. memory is 8.0 GB. [2021-02-22 01:13:44,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 168.8 MB. Free memory is still 141.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 772.83 ms. Allocated memory is still 168.8 MB. Free memory was 143.4 MB in the beginning and 122.1 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.12 ms. Allocated memory is still 168.8 MB. Free memory was 122.0 MB in the beginning and 118.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1403.53 ms. Allocated memory was 168.8 MB in the beginning and 213.9 MB in the end (delta: 45.1 MB). Free memory was 118.0 MB in the beginning and 177.6 MB in the end (delta: -59.6 MB). Peak memory consumption was 57.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 38083.66 ms. Allocated memory was 213.9 MB in the beginning and 467.7 MB in the end (delta: 253.8 MB). Free memory was 177.6 MB in the beginning and 243.6 MB in the end (delta: -66.0 MB). Peak memory consumption was 187.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...