/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 16:46:22,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 16:46:22,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 16:46:22,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 16:46:22,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 16:46:22,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 16:46:22,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 16:46:22,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 16:46:22,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 16:46:22,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 16:46:22,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 16:46:22,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 16:46:22,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 16:46:22,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 16:46:22,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 16:46:22,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 16:46:22,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 16:46:22,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 16:46:22,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 16:46:22,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 16:46:22,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 16:46:22,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 16:46:22,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 16:46:22,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 16:46:22,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 16:46:22,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 16:46:22,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 16:46:22,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 16:46:22,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 16:46:22,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 16:46:22,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 16:46:22,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 16:46:22,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 16:46:22,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 16:46:22,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 16:46:22,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 16:46:22,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 16:46:22,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 16:46:22,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 16:46:22,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 16:46:22,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 16:46:22,287 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 16:46:22,310 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 16:46:22,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 16:46:22,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 16:46:22,312 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 16:46:22,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 16:46:22,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 16:46:22,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 16:46:22,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 16:46:22,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 16:46:22,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 16:46:22,313 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 16:46:22,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 16:46:22,314 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 16:46:22,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 16:46:22,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 16:46:22,315 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 16:46:22,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 16:46:22,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 16:46:22,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 16:46:22,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 16:46:22,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 16:46:22,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 16:46:22,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 16:46:22,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 16:46:22,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 16:46:22,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 16:46:22,786 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 16:46:22,786 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 16:46:22,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c [2021-02-23 16:46:22,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccff0705a/83f1bb14ee264be1a1cedbb561a34313/FLAG85496bd74 [2021-02-23 16:46:23,637 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 16:46:23,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product25.cil.c [2021-02-23 16:46:23,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccff0705a/83f1bb14ee264be1a1cedbb561a34313/FLAG85496bd74 [2021-02-23 16:46:23,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccff0705a/83f1bb14ee264be1a1cedbb561a34313 [2021-02-23 16:46:23,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 16:46:23,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 16:46:23,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 16:46:23,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 16:46:23,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 16:46:23,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:46:23" (1/1) ... [2021-02-23 16:46:23,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55881a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:23, skipping insertion in model container [2021-02-23 16:46:23,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:46:23" (1/1) ... [2021-02-23 16:46:23,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 16:46:24,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 16:46:24,205 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_product25.cil.c[1281,1294] [2021-02-23 16:46:24,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:46:24,497 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 16:46:24,514 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_product25.cil.c[1281,1294] [2021-02-23 16:46:24,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:46:24,614 INFO L208 MainTranslator]: Completed translation [2021-02-23 16:46:24,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:24 WrapperNode [2021-02-23 16:46:24,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 16:46:24,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 16:46:24,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 16:46:24,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 16:46:24,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:24" (1/1) ... [2021-02-23 16:46:24,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:24" (1/1) ... [2021-02-23 16:46:24,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:24" (1/1) ... [2021-02-23 16:46:24,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:24" (1/1) ... [2021-02-23 16:46:24,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:24" (1/1) ... [2021-02-23 16:46:24,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:24" (1/1) ... [2021-02-23 16:46:24,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:24" (1/1) ... [2021-02-23 16:46:24,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 16:46:24,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 16:46:24,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 16:46:24,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 16:46:24,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:24" (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 [2021-02-23 16:46:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 16:46:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 16:46:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 16:46:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 16:46:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 16:46:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 16:46:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 16:46:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 16:46:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 16:46:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-23 16:46:24,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 16:46:24,882 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 16:46:24,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 16:46:24,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 16:46:24,882 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 16:46:24,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-23 16:46:24,883 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 16:46:24,883 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 16:46:24,883 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 16:46:24,883 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 16:46:24,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2021-02-23 16:46:24,884 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 16:46:24,884 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 16:46:24,884 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 16:46:24,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 16:46:24,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 16:46:24,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 16:46:24,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-23 16:46:24,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 16:46:24,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 16:46:24,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 16:46:24,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 16:46:24,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 16:46:24,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 16:46:24,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 16:46:24,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 16:46:24,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 16:46:24,886 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 16:46:24,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 16:46:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 16:46:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 16:46:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 16:46:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 16:46:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 16:46:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 16:46:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 16:46:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 16:46:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 16:46:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 16:46:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 16:46:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 16:46:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 16:46:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 16:46:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 16:46:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-23 16:46:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 16:46:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 16:46:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 16:46:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 16:46:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2021-02-23 16:46:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 16:46:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 16:46:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-23 16:46:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-23 16:46:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 16:46:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 16:46:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 16:46:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 16:46:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 16:46:24,892 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 16:46:24,892 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 16:46:24,892 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 16:46:24,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 16:46:24,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 16:46:24,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 16:46:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 16:46:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 16:46:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 16:46:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 16:46:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 16:46:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 16:46:24,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 16:46:24,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 16:46:24,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 16:46:24,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 16:46:24,894 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 16:46:24,894 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 16:46:24,895 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 16:46:24,895 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 16:46:24,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 16:46:24,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 16:46:24,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 16:46:26,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 16:46:26,501 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 16:46:26,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:46:26 BoogieIcfgContainer [2021-02-23 16:46:26,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 16:46:26,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 16:46:26,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 16:46:26,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 16:46:26,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 04:46:23" (1/3) ... [2021-02-23 16:46:26,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334cae6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:46:26, skipping insertion in model container [2021-02-23 16:46:26,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:46:24" (2/3) ... [2021-02-23 16:46:26,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334cae6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:46:26, skipping insertion in model container [2021-02-23 16:46:26,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:46:26" (3/3) ... [2021-02-23 16:46:26,516 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product25.cil.c [2021-02-23 16:46:26,524 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 16:46:26,531 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 16:46:26,552 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 16:46:26,578 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 16:46:26,579 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 16:46:26,579 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 16:46:26,579 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 16:46:26,579 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 16:46:26,579 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 16:46:26,579 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 16:46:26,580 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 16:46:26,605 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2021-02-23 16:46:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-23 16:46:26,627 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:46:26,628 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] [2021-02-23 16:46:26,629 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:46:26,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:46:26,636 INFO L82 PathProgramCache]: Analyzing trace with hash -540230698, now seen corresponding path program 1 times [2021-02-23 16:46:26,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:46:26,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303954747] [2021-02-23 16:46:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:46:26,739 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:46:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:27,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:27,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:27,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:27,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:27,461 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:46:27,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:46:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:27,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:27,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:27,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:46:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:27,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:27,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:27,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:46:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:27,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:27,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:27,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:46:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:27,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:27,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:27,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:46:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:27,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:27,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:27,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 16:46:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:27,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:27,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:27,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 16:46:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:27,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:27,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:46:27,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303954747] [2021-02-23 16:46:27,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:46:27,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 16:46:27,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994293516] [2021-02-23 16:46:27,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 16:46:27,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:46:27,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 16:46:27,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:46:27,802 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2021-02-23 16:46:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:46:29,307 INFO L93 Difference]: Finished difference Result 419 states and 499 transitions. [2021-02-23 16:46:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 16:46:29,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-23 16:46:29,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:46:29,326 INFO L225 Difference]: With dead ends: 419 [2021-02-23 16:46:29,327 INFO L226 Difference]: Without dead ends: 268 [2021-02-23 16:46:29,349 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 [2021-02-23 16:46:29,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-02-23 16:46:29,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 229. [2021-02-23 16:46:29,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2021-02-23 16:46:29,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 246 transitions. [2021-02-23 16:46:29,543 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 246 transitions. Word has length 147 [2021-02-23 16:46:29,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:46:29,546 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 246 transitions. [2021-02-23 16:46:29,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 16:46:29,547 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 246 transitions. [2021-02-23 16:46:29,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-23 16:46:29,565 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:46:29,565 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] [2021-02-23 16:46:29,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 16:46:29,566 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:46:29,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:46:29,571 INFO L82 PathProgramCache]: Analyzing trace with hash -804325336, now seen corresponding path program 1 times [2021-02-23 16:46:29,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:46:29,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010595910] [2021-02-23 16:46:29,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:46:29,580 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:46:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:29,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:29,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:29,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:29,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:29,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:29,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:30,100 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:46:30,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:46:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:30,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:30,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:30,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:46:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:30,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:30,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:30,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:46:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:30,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:30,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:30,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:46:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:30,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:30,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:30,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:46:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:30,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:30,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:30,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 16:46:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:30,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:30,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:30,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 16:46:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:30,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:30,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:46:30,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010595910] [2021-02-23 16:46:30,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:46:30,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 16:46:30,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685594582] [2021-02-23 16:46:30,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 16:46:30,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:46:30,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 16:46:30,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:46:30,239 INFO L87 Difference]: Start difference. First operand 229 states and 246 transitions. Second operand 4 states. [2021-02-23 16:46:30,951 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:46:31,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:46:31,735 INFO L93 Difference]: Finished difference Result 335 states and 373 transitions. [2021-02-23 16:46:31,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 16:46:31,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-23 16:46:31,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:46:31,750 INFO L225 Difference]: With dead ends: 335 [2021-02-23 16:46:31,750 INFO L226 Difference]: Without dead ends: 251 [2021-02-23 16:46:31,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 16:46:31,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-02-23 16:46:31,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2021-02-23 16:46:31,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-23 16:46:31,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 233 transitions. [2021-02-23 16:46:31,896 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 233 transitions. Word has length 148 [2021-02-23 16:46:31,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:46:31,899 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 233 transitions. [2021-02-23 16:46:31,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 16:46:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 233 transitions. [2021-02-23 16:46:31,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-23 16:46:31,902 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:46:31,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:46:31,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 16:46:31,903 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:46:31,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:46:31,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1633713983, now seen corresponding path program 1 times [2021-02-23 16:46:31,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:46:31,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955217997] [2021-02-23 16:46:31,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:46:31,915 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:46:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:32,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:32,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:32,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:32,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:46:32,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:32,375 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:46:32,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:46:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:32,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:32,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:46:32,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:46:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:32,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:32,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:46:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:32,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:32,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:46:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:32,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:32,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:46:32,510 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 16:46:32,511 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 16:46:32,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:46:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:32,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:32,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 16:46:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:32,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:32,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 16:46:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:32,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:32,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:46:32,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955217997] [2021-02-23 16:46:32,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:46:32,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 16:46:32,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473231579] [2021-02-23 16:46:32,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 16:46:32,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:46:32,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 16:46:32,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 16:46:32,587 INFO L87 Difference]: Start difference. First operand 219 states and 233 transitions. Second operand 9 states. [2021-02-23 16:46:33,289 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:46:33,666 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:46:33,954 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:46:34,232 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:46:34,559 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:46:34,831 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:46:36,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:46:36,055 INFO L93 Difference]: Finished difference Result 355 states and 398 transitions. [2021-02-23 16:46:36,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 16:46:36,055 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-23 16:46:36,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:46:36,058 INFO L225 Difference]: With dead ends: 355 [2021-02-23 16:46:36,059 INFO L226 Difference]: Without dead ends: 251 [2021-02-23 16:46:36,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-23 16:46:36,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-02-23 16:46:36,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2021-02-23 16:46:36,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-23 16:46:36,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 232 transitions. [2021-02-23 16:46:36,145 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 232 transitions. Word has length 157 [2021-02-23 16:46:36,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:46:36,145 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 232 transitions. [2021-02-23 16:46:36,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 16:46:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 232 transitions. [2021-02-23 16:46:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-23 16:46:36,147 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:46:36,148 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] [2021-02-23 16:46:36,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 16:46:36,149 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:46:36,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:46:36,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1066025678, now seen corresponding path program 1 times [2021-02-23 16:46:36,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:46:36,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193067505] [2021-02-23 16:46:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:46:36,153 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:46:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:36,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:36,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:36,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:36,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:36,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:46:36,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:46:36,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:46:36,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:46:36,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:46:36,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:46:36,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:36,562 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:46:36,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:46:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:36,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:36,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:46:36,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:46:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:36,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:36,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:46:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:36,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:36,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:46:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:36,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:36,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:46:36,658 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 16:46:36,659 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 16:46:36,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:46:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:36,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:36,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-23 16:46:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:36,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:36,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:46:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:36,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:36,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-23 16:46:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:36,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:36,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:36,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:36,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-23 16:46:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:36,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:36,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:46:36,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193067505] [2021-02-23 16:46:36,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:46:36,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-23 16:46:36,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785447062] [2021-02-23 16:46:36,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 16:46:36,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:46:36,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 16:46:36,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-23 16:46:36,782 INFO L87 Difference]: Start difference. First operand 219 states and 232 transitions. Second operand 14 states. [2021-02-23 16:46:37,363 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:46:37,779 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:46:38,090 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:46:38,422 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:46:38,739 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:46:39,061 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:46:39,808 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:46:40,810 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:46:41,125 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:46:41,498 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:46:41,880 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:46:42,190 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:46:42,489 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:46:42,805 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 16:46:43,102 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:46:43,398 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:46:43,758 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:46:44,190 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-23 16:46:44,519 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:46:44,886 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:46:46,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:46:46,023 INFO L93 Difference]: Finished difference Result 610 states and 732 transitions. [2021-02-23 16:46:46,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-23 16:46:46,024 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 165 [2021-02-23 16:46:46,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:46:46,029 INFO L225 Difference]: With dead ends: 610 [2021-02-23 16:46:46,029 INFO L226 Difference]: Without dead ends: 506 [2021-02-23 16:46:46,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 16:46:46,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-02-23 16:46:46,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 403. [2021-02-23 16:46:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2021-02-23 16:46:46,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 444 transitions. [2021-02-23 16:46:46,232 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 444 transitions. Word has length 165 [2021-02-23 16:46:46,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:46:46,233 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 444 transitions. [2021-02-23 16:46:46,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 16:46:46,233 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 444 transitions. [2021-02-23 16:46:46,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-02-23 16:46:46,236 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:46:46,236 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] [2021-02-23 16:46:46,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 16:46:46,237 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:46:46,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:46:46,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1351030507, now seen corresponding path program 1 times [2021-02-23 16:46:46,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:46:46,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512583082] [2021-02-23 16:46:46,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:46:46,242 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:46:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:46,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:46,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:46,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:46,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:46,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,542 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:46:46,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:46:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:46:46,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:46:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:46:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:46:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:46:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-23 16:46:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 16:46:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 16:46:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-23 16:46:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-23 16:46:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:46:46,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:46,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:46:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:46:46,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512583082] [2021-02-23 16:46:46,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:46:46,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 16:46:46,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765086028] [2021-02-23 16:46:46,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 16:46:46,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:46:46,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 16:46:46,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 16:46:46,712 INFO L87 Difference]: Start difference. First operand 403 states and 444 transitions. Second operand 6 states. [2021-02-23 16:46:47,255 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:46:47,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:46:47,980 INFO L93 Difference]: Finished difference Result 605 states and 688 transitions. [2021-02-23 16:46:47,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 16:46:47,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2021-02-23 16:46:47,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:46:47,983 INFO L225 Difference]: With dead ends: 605 [2021-02-23 16:46:47,983 INFO L226 Difference]: Without dead ends: 317 [2021-02-23 16:46:47,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-23 16:46:47,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-02-23 16:46:48,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 296. [2021-02-23 16:46:48,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2021-02-23 16:46:48,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 313 transitions. [2021-02-23 16:46:48,108 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 313 transitions. Word has length 170 [2021-02-23 16:46:48,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:46:48,108 INFO L480 AbstractCegarLoop]: Abstraction has 296 states and 313 transitions. [2021-02-23 16:46:48,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 16:46:48,109 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 313 transitions. [2021-02-23 16:46:48,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-02-23 16:46:48,112 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:46:48,113 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:46:48,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 16:46:48,113 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:46:48,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:46:48,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1859347637, now seen corresponding path program 1 times [2021-02-23 16:46:48,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:46:48,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646007372] [2021-02-23 16:46:48,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:46:48,650 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 112 [2021-02-23 16:46:48,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:46:48,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255