/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 21:45:11,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 21:45:11,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 21:45:11,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 21:45:11,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 21:45:11,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 21:45:11,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 21:45:11,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 21:45:11,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 21:45:11,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 21:45:11,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 21:45:11,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 21:45:11,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 21:45:11,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 21:45:11,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 21:45:11,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 21:45:11,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 21:45:11,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 21:45:11,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 21:45:11,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 21:45:11,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 21:45:11,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 21:45:11,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 21:45:11,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 21:45:11,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 21:45:11,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 21:45:11,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 21:45:11,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 21:45:11,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 21:45:11,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 21:45:11,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 21:45:11,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 21:45:11,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 21:45:11,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 21:45:11,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 21:45:11,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 21:45:11,931 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 21:45:11,954 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 21:45:11,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 21:45:11,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 21:45:11,959 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 21:45:11,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 21:45:11,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 21:45:11,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 21:45:11,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 21:45:11,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 21:45:11,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 21:45:11,962 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 21:45:11,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 21:45:11,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 21:45:11,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 21:45:11,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 21:45:11,963 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 21:45:11,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 21:45:11,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 21:45:11,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 21:45:11,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 21:45:11,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 21:45:11,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 21:45:11,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 21:45:12,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 21:45:12,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 21:45:12,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 21:45:12,429 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 21:45:12,430 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 21:45:12,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2021-02-23 21:45:12,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d41394507/8366b9504248443db55a12beb0eff9cc/FLAG7fd318073 [2021-02-23 21:45:13,144 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 21:45:13,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2021-02-23 21:45:13,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d41394507/8366b9504248443db55a12beb0eff9cc/FLAG7fd318073 [2021-02-23 21:45:13,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d41394507/8366b9504248443db55a12beb0eff9cc [2021-02-23 21:45:13,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 21:45:13,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 21:45:13,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 21:45:13,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 21:45:13,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 21:45:13,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:45:13" (1/1) ... [2021-02-23 21:45:13,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e045a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:13, skipping insertion in model container [2021-02-23 21:45:13,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:45:13" (1/1) ... [2021-02-23 21:45:13,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 21:45:13,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 21:45:13,975 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_spec1_product34.cil.c[12260,12273] [2021-02-23 21:45:14,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:45:14,029 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 21:45:14,147 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_spec1_product34.cil.c[12260,12273] [2021-02-23 21:45:14,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:45:14,221 INFO L208 MainTranslator]: Completed translation [2021-02-23 21:45:14,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:14 WrapperNode [2021-02-23 21:45:14,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 21:45:14,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 21:45:14,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 21:45:14,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 21:45:14,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:14" (1/1) ... [2021-02-23 21:45:14,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:14" (1/1) ... [2021-02-23 21:45:14,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:14" (1/1) ... [2021-02-23 21:45:14,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:14" (1/1) ... [2021-02-23 21:45:14,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:14" (1/1) ... [2021-02-23 21:45:14,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:14" (1/1) ... [2021-02-23 21:45:14,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:14" (1/1) ... [2021-02-23 21:45:14,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 21:45:14,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 21:45:14,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 21:45:14,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 21:45:14,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:14" (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 21:45:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 21:45:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 21:45:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 21:45:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 21:45:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 21:45:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 21:45:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 21:45:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 21:45:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 21:45:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 21:45:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 21:45:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 21:45:14,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 21:45:14,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 21:45:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 21:45:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 21:45:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 21:45:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 21:45:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 21:45:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 21:45:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 21:45:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 21:45:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 21:45:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 21:45:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 21:45:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 21:45:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 21:45:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 21:45:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 21:45:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 21:45:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 21:45:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 21:45:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 21:45:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 21:45:14,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-23 21:45:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 21:45:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 21:45:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 21:45:14,457 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 21:45:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 21:45:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 21:45:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 21:45:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 21:45:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 21:45:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 21:45:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 21:45:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 21:45:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 21:45:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 21:45:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 21:45:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 21:45:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 21:45:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 21:45:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 21:45:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 21:45:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 21:45:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 21:45:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 21:45:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 21:45:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 21:45:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 21:45:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 21:45:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 21:45:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 21:45:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 21:45:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 21:45:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 21:45:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 21:45:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 21:45:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 21:45:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 21:45:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 21:45:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 21:45:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 21:45:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 21:45:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 21:45:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 21:45:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 21:45:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 21:45:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 21:45:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 21:45:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 21:45:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 21:45:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-23 21:45:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 21:45:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 21:45:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 21:45:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 21:45:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 21:45:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 21:45:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 21:45:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 21:45:15,639 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 21:45:15,639 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 21:45:15,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:45:15 BoogieIcfgContainer [2021-02-23 21:45:15,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 21:45:15,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 21:45:15,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 21:45:15,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 21:45:15,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 09:45:13" (1/3) ... [2021-02-23 21:45:15,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6f93b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:45:15, skipping insertion in model container [2021-02-23 21:45:15,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:45:14" (2/3) ... [2021-02-23 21:45:15,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6f93b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:45:15, skipping insertion in model container [2021-02-23 21:45:15,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:45:15" (3/3) ... [2021-02-23 21:45:15,653 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2021-02-23 21:45:15,660 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 21:45:15,666 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 21:45:15,687 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 21:45:15,713 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 21:45:15,713 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 21:45:15,713 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 21:45:15,713 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 21:45:15,714 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 21:45:15,714 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 21:45:15,714 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 21:45:15,714 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 21:45:15,769 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2021-02-23 21:45:15,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-23 21:45:15,800 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:45:15,802 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 21:45:15,802 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:45:15,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:45:15,818 INFO L82 PathProgramCache]: Analyzing trace with hash 2146237448, now seen corresponding path program 1 times [2021-02-23 21:45:15,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:45:15,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912045754] [2021-02-23 21:45:15,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:45:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:16,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:16,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:16,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:16,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:16,672 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:45:16,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:45:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:16,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:16,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:16,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:45:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:16,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:16,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:16,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:45:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:16,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:16,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:16,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:45:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:16,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:16,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:16,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:45:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:16,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:16,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:16,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 21:45:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:16,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:16,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:16,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 21:45:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:16,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:16,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:16,876 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 21:45:16,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912045754] [2021-02-23 21:45:16,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:45:16,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 21:45:16,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611615427] [2021-02-23 21:45:16,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 21:45:16,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:45:16,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 21:45:16,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:45:16,905 INFO L87 Difference]: Start difference. First operand 294 states. Second operand 3 states. [2021-02-23 21:45:18,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:45:18,411 INFO L93 Difference]: Finished difference Result 434 states and 517 transitions. [2021-02-23 21:45:18,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 21:45:18,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-23 21:45:18,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:45:18,429 INFO L225 Difference]: With dead ends: 434 [2021-02-23 21:45:18,429 INFO L226 Difference]: Without dead ends: 276 [2021-02-23 21:45:18,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:45:18,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-02-23 21:45:18,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 236. [2021-02-23 21:45:18,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2021-02-23 21:45:18,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 254 transitions. [2021-02-23 21:45:18,604 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 254 transitions. Word has length 147 [2021-02-23 21:45:18,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:45:18,605 INFO L480 AbstractCegarLoop]: Abstraction has 236 states and 254 transitions. [2021-02-23 21:45:18,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 21:45:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 254 transitions. [2021-02-23 21:45:18,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-23 21:45:18,610 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:45:18,610 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 21:45:18,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 21:45:18,611 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:45:18,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:45:18,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1240697898, now seen corresponding path program 1 times [2021-02-23 21:45:18,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:45:18,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641249399] [2021-02-23 21:45:18,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:45:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:18,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:18,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:18,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:18,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:18,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:18,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:19,111 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:45:19,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:45:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:19,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:19,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:19,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:45:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:19,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:19,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:19,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:45:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:19,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:19,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:19,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:45:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:19,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:19,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:19,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:45:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:19,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:19,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:19,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 21:45:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:19,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:19,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:19,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:45:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:19,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:19,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:19,213 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 21:45:19,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641249399] [2021-02-23 21:45:19,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:45:19,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 21:45:19,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322533520] [2021-02-23 21:45:19,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 21:45:19,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:45:19,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 21:45:19,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 21:45:19,217 INFO L87 Difference]: Start difference. First operand 236 states and 254 transitions. Second operand 4 states. [2021-02-23 21:45:19,992 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:20,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:45:20,893 INFO L93 Difference]: Finished difference Result 346 states and 387 transitions. [2021-02-23 21:45:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 21:45:20,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-23 21:45:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:45:20,906 INFO L225 Difference]: With dead ends: 346 [2021-02-23 21:45:20,906 INFO L226 Difference]: Without dead ends: 259 [2021-02-23 21:45:20,910 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 [2021-02-23 21:45:20,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-02-23 21:45:21,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 226. [2021-02-23 21:45:21,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2021-02-23 21:45:21,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 241 transitions. [2021-02-23 21:45:21,034 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 241 transitions. Word has length 148 [2021-02-23 21:45:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:45:21,037 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 241 transitions. [2021-02-23 21:45:21,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 21:45:21,037 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 241 transitions. [2021-02-23 21:45:21,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-02-23 21:45:21,041 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:45:21,042 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] [2021-02-23 21:45:21,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 21:45:21,042 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:45:21,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:45:21,043 INFO L82 PathProgramCache]: Analyzing trace with hash -2018752551, now seen corresponding path program 1 times [2021-02-23 21:45:21,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:45:21,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69419392] [2021-02-23 21:45:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:45:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:21,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:21,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:21,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:21,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:21,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:45:21,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:21,517 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:45:21,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:45:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:21,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:21,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:45:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:21,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:21,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:45:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:21,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:21,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:45:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:21,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:21,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:45:21,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:45:21,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:45:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:21,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:21,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 21:45:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:21,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:21,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-23 21:45:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:21,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:21,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-23 21:45:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:21,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:21,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:21,789 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 21:45:21,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69419392] [2021-02-23 21:45:21,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:45:21,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 21:45:21,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684773242] [2021-02-23 21:45:21,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 21:45:21,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:45:21,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 21:45:21,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 21:45:21,792 INFO L87 Difference]: Start difference. First operand 226 states and 241 transitions. Second operand 10 states. [2021-02-23 21:45:22,462 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:45:22,917 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:45:23,279 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 21:45:23,641 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:23,991 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:45:24,340 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:25,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:45:25,902 INFO L93 Difference]: Finished difference Result 392 states and 449 transitions. [2021-02-23 21:45:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 21:45:25,903 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2021-02-23 21:45:25,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:45:25,906 INFO L225 Difference]: With dead ends: 392 [2021-02-23 21:45:25,906 INFO L226 Difference]: Without dead ends: 281 [2021-02-23 21:45:25,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-23 21:45:25,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-02-23 21:45:25,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 226. [2021-02-23 21:45:25,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2021-02-23 21:45:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 240 transitions. [2021-02-23 21:45:25,988 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 240 transitions. Word has length 161 [2021-02-23 21:45:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:45:25,989 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 240 transitions. [2021-02-23 21:45:25,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 21:45:25,989 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 240 transitions. [2021-02-23 21:45:25,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-02-23 21:45:25,992 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:45:25,992 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] [2021-02-23 21:45:25,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 21:45:25,992 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:45:25,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:45:25,993 INFO L82 PathProgramCache]: Analyzing trace with hash 349736484, now seen corresponding path program 1 times [2021-02-23 21:45:25,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:45:25,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942103292] [2021-02-23 21:45:25,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:45:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:26,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:26,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:26,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:26,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:26,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:26,401 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:45:26,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:45:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:26,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:26,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:45:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:26,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:45:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:26,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:45:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:26,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:45:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:26,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 21:45:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:26,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:45:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:26,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:45:26,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:45:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:26,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 21:45:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:26,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-02-23 21:45:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:26,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:26,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:26,564 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 21:45:26,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942103292] [2021-02-23 21:45:26,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:45:26,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 21:45:26,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392203813] [2021-02-23 21:45:26,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 21:45:26,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:45:26,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 21:45:26,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-23 21:45:26,567 INFO L87 Difference]: Start difference. First operand 226 states and 240 transitions. Second operand 7 states. [2021-02-23 21:45:27,179 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:45:29,018 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:29,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:45:29,840 INFO L93 Difference]: Finished difference Result 563 states and 666 transitions. [2021-02-23 21:45:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-23 21:45:29,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2021-02-23 21:45:29,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:45:29,845 INFO L225 Difference]: With dead ends: 563 [2021-02-23 21:45:29,845 INFO L226 Difference]: Without dead ends: 452 [2021-02-23 21:45:29,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-02-23 21:45:29,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-02-23 21:45:29,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 325. [2021-02-23 21:45:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2021-02-23 21:45:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 349 transitions. [2021-02-23 21:45:29,986 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 349 transitions. Word has length 169 [2021-02-23 21:45:29,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:45:29,986 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 349 transitions. [2021-02-23 21:45:29,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 21:45:29,987 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 349 transitions. [2021-02-23 21:45:29,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-02-23 21:45:29,989 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:45:29,990 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] [2021-02-23 21:45:29,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 21:45:29,990 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:45:29,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:45:29,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1813492629, now seen corresponding path program 1 times [2021-02-23 21:45:29,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:45:29,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071622012] [2021-02-23 21:45:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:45:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:30,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:30,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:30,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:30,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:30,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:30,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,379 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:45:30,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:45:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:30,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:45:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:45:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:45:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:45:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 21:45:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:45:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:45:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:45:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:45:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 21:45:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:30,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:30,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-02-23 21:45:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:30,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:30,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:30,586 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 21:45:30,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071622012] [2021-02-23 21:45:30,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:45:30,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 21:45:30,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699002000] [2021-02-23 21:45:30,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 21:45:30,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:45:30,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 21:45:30,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 21:45:30,589 INFO L87 Difference]: Start difference. First operand 325 states and 349 transitions. Second operand 10 states. [2021-02-23 21:45:31,236 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:45:32,811 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:33,189 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:45:33,571 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:33,959 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:45:34,294 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:45:34,649 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:35,005 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:35,526 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:36,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:45:36,902 INFO L93 Difference]: Finished difference Result 934 states and 1136 transitions. [2021-02-23 21:45:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-23 21:45:36,903 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2021-02-23 21:45:36,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:45:36,910 INFO L225 Difference]: With dead ends: 934 [2021-02-23 21:45:36,910 INFO L226 Difference]: Without dead ends: 724 [2021-02-23 21:45:36,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-02-23 21:45:36,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2021-02-23 21:45:37,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 498. [2021-02-23 21:45:37,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2021-02-23 21:45:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 541 transitions. [2021-02-23 21:45:37,155 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 541 transitions. Word has length 193 [2021-02-23 21:45:37,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:45:37,156 INFO L480 AbstractCegarLoop]: Abstraction has 498 states and 541 transitions. [2021-02-23 21:45:37,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 21:45:37,156 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 541 transitions. [2021-02-23 21:45:37,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-02-23 21:45:37,159 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:45:37,160 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] [2021-02-23 21:45:37,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 21:45:37,160 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:45:37,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:45:37,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1745554174, now seen corresponding path program 1 times [2021-02-23 21:45:37,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:45:37,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763750497] [2021-02-23 21:45:37,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:45:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,571 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:45:37,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:45:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:45:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:45:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:45:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:45:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 21:45:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 21:45:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 21:45:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:45:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:45:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:45:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-02-23 21:45:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-02-23 21:45:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:37,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:37,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:37,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:37,830 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 21:45:37,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763750497] [2021-02-23 21:45:37,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:45:37,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 21:45:37,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990139418] [2021-02-23 21:45:37,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 21:45:37,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:45:37,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 21:45:37,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-23 21:45:37,833 INFO L87 Difference]: Start difference. First operand 498 states and 541 transitions. Second operand 11 states. [2021-02-23 21:45:38,523 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:45:40,219 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:40,577 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:45:41,009 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:45:41,408 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:41,824 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:42,262 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:45:42,675 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:43,114 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:44,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:45:44,778 INFO L93 Difference]: Finished difference Result 859 states and 1068 transitions. [2021-02-23 21:45:44,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-23 21:45:44,778 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 198 [2021-02-23 21:45:44,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:45:44,785 INFO L225 Difference]: With dead ends: 859 [2021-02-23 21:45:44,785 INFO L226 Difference]: Without dead ends: 856 [2021-02-23 21:45:44,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2021-02-23 21:45:44,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2021-02-23 21:45:44,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 498. [2021-02-23 21:45:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2021-02-23 21:45:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 540 transitions. [2021-02-23 21:45:44,975 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 540 transitions. Word has length 198 [2021-02-23 21:45:44,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:45:44,975 INFO L480 AbstractCegarLoop]: Abstraction has 498 states and 540 transitions. [2021-02-23 21:45:44,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 21:45:44,976 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 540 transitions. [2021-02-23 21:45:44,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-23 21:45:44,979 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:45:44,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:45:44,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 21:45:44,979 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:45:44,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:45:44,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1745880707, now seen corresponding path program 1 times [2021-02-23 21:45:44,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:45:44,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371768626] [2021-02-23 21:45:44,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:45:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,341 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:45:45,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:45:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:45:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:45:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:45:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:45:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 21:45:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 21:45:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 21:45:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:45,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:45,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:45:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:45:45,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:45:45,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:45:45,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:45:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:45:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-23 21:45:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-23 21:45:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:45,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:45,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:45,587 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 21:45:45,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371768626] [2021-02-23 21:45:45,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:45:45,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 21:45:45,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038138239] [2021-02-23 21:45:45,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 21:45:45,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:45:45,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 21:45:45,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-23 21:45:45,590 INFO L87 Difference]: Start difference. First operand 498 states and 540 transitions. Second operand 11 states. [2021-02-23 21:45:47,031 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:47,431 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 21:45:47,841 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-23 21:45:48,237 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:48,631 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:45:49,000 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:45:50,414 INFO L93 Difference]: Finished difference Result 1249 states and 1522 transitions. [2021-02-23 21:45:50,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 21:45:50,415 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2021-02-23 21:45:50,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:45:50,421 INFO L225 Difference]: With dead ends: 1249 [2021-02-23 21:45:50,421 INFO L226 Difference]: Without dead ends: 866 [2021-02-23 21:45:50,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-02-23 21:45:50,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2021-02-23 21:45:50,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 514. [2021-02-23 21:45:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2021-02-23 21:45:50,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 556 transitions. [2021-02-23 21:45:50,646 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 556 transitions. Word has length 199 [2021-02-23 21:45:50,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:45:50,647 INFO L480 AbstractCegarLoop]: Abstraction has 514 states and 556 transitions. [2021-02-23 21:45:50,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 21:45:50,647 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 556 transitions. [2021-02-23 21:45:50,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-23 21:45:50,650 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:45:50,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:45:50,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 21:45:50,651 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:45:50,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:45:50,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1126845725, now seen corresponding path program 1 times [2021-02-23 21:45:50,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:45:50,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026530223] [2021-02-23 21:45:50,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:45:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:50,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:50,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:50,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:50,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:50,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:50,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:50,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:50,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:50,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:50,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,019 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:45:51,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:45:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:45:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:45:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:45:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:45:51,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:45:51,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:45:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 21:45:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 21:45:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 21:45:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:45:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:51,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:51,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:45:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:51,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:51,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:45:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-23 21:45:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-23 21:45:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:51,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:51,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:51,281 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 21:45:51,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026530223] [2021-02-23 21:45:51,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:45:51,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-23 21:45:51,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851884833] [2021-02-23 21:45:51,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 21:45:51,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:45:51,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 21:45:51,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-02-23 21:45:51,283 INFO L87 Difference]: Start difference. First operand 514 states and 556 transitions. Second operand 14 states. [2021-02-23 21:45:52,039 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:45:52,407 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 21:45:52,773 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:53,137 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:45:53,482 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:54,464 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:54,834 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:45:55,219 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:55,596 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:45:55,936 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:45:57,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:45:57,773 INFO L93 Difference]: Finished difference Result 1287 states and 1583 transitions. [2021-02-23 21:45:57,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-23 21:45:57,774 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 199 [2021-02-23 21:45:57,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:45:57,780 INFO L225 Difference]: With dead ends: 1287 [2021-02-23 21:45:57,781 INFO L226 Difference]: Without dead ends: 888 [2021-02-23 21:45:57,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2021-02-23 21:45:57,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2021-02-23 21:45:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 526. [2021-02-23 21:45:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2021-02-23 21:45:58,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 568 transitions. [2021-02-23 21:45:58,051 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 568 transitions. Word has length 199 [2021-02-23 21:45:58,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:45:58,051 INFO L480 AbstractCegarLoop]: Abstraction has 526 states and 568 transitions. [2021-02-23 21:45:58,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 21:45:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 568 transitions. [2021-02-23 21:45:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-23 21:45:58,054 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:45:58,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:45:58,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 21:45:58,055 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:45:58,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:45:58,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1335194496, now seen corresponding path program 1 times [2021-02-23 21:45:58,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:45:58,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015261341] [2021-02-23 21:45:58,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:45:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:58,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:58,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:58,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:58,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:45:58,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,421 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:45:58,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:45:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:45:58,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:45:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:45:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:45:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:45:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-23 21:45:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-02-23 21:45:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 21:45:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:45:58,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:45:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:45:58,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 21:45:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:45:58,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-23 21:45:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-23 21:45:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-23 21:45:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:45:58,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:45:58,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:45:58,626 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 21:45:58,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015261341] [2021-02-23 21:45:58,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:45:58,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 21:45:58,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11695351] [2021-02-23 21:45:58,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 21:45:58,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:45:58,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 21:45:58,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 21:45:58,632 INFO L87 Difference]: Start difference. First operand 526 states and 568 transitions. Second operand 8 states. [2021-02-23 21:45:59,273 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:45:59,954 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:46:03,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:46:03,556 INFO L93 Difference]: Finished difference Result 1936 states and 2440 transitions. [2021-02-23 21:46:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-23 21:46:03,557 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2021-02-23 21:46:03,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:46:03,567 INFO L225 Difference]: With dead ends: 1936 [2021-02-23 21:46:03,568 INFO L226 Difference]: Without dead ends: 1525 [2021-02-23 21:46:03,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2021-02-23 21:46:03,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2021-02-23 21:46:03,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 948. [2021-02-23 21:46:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 948 states. [2021-02-23 21:46:03,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1056 transitions. [2021-02-23 21:46:03,962 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1056 transitions. Word has length 199 [2021-02-23 21:46:03,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:46:03,963 INFO L480 AbstractCegarLoop]: Abstraction has 948 states and 1056 transitions. [2021-02-23 21:46:03,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 21:46:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1056 transitions. [2021-02-23 21:46:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-02-23 21:46:03,965 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:46:03,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:46:03,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 21:46:03,966 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:46:03,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:46:03,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1808277229, now seen corresponding path program 1 times [2021-02-23 21:46:03,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:46:03,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585917027] [2021-02-23 21:46:03,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:46:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:46:04,037 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:46:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:46:04,104 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:46:04,320 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 21:46:04,320 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 21:46:04,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 21:46:04,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 09:46:04 BoogieIcfgContainer [2021-02-23 21:46:04,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 21:46:04,622 INFO L168 Benchmark]: Toolchain (without parser) took 51148.37 ms. Allocated memory was 160.4 MB in the beginning and 615.5 MB in the end (delta: 455.1 MB). Free memory was 135.8 MB in the beginning and 406.3 MB in the end (delta: -270.5 MB). Peak memory consumption was 184.7 MB. Max. memory is 8.0 GB. [2021-02-23 21:46:04,622 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 160.4 MB. Free memory is still 136.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 21:46:04,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.84 ms. Allocated memory is still 160.4 MB. Free memory was 134.8 MB in the beginning and 114.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-23 21:46:04,623 INFO L168 Benchmark]: Boogie Preprocessor took 110.82 ms. Allocated memory is still 160.4 MB. Free memory was 114.2 MB in the beginning and 110.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 21:46:04,623 INFO L168 Benchmark]: RCFGBuilder took 1307.82 ms. Allocated memory is still 160.4 MB. Free memory was 110.5 MB in the beginning and 69.0 MB in the end (delta: 41.5 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2021-02-23 21:46:04,623 INFO L168 Benchmark]: TraceAbstraction took 48975.94 ms. Allocated memory was 160.4 MB in the beginning and 615.5 MB in the end (delta: 455.1 MB). Free memory was 68.5 MB in the beginning and 406.3 MB in the end (delta: -337.9 MB). Peak memory consumption was 117.7 MB. Max. memory is 8.0 GB. [2021-02-23 21:46:04,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 160.4 MB. Free memory is still 136.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 730.84 ms. Allocated memory is still 160.4 MB. Free memory was 134.8 MB in the beginning and 114.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.82 ms. Allocated memory is still 160.4 MB. Free memory was 114.2 MB in the beginning and 110.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1307.82 ms. Allocated memory is still 160.4 MB. Free memory was 110.5 MB in the beginning and 69.0 MB in the end (delta: 41.5 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 48975.94 ms. Allocated memory was 160.4 MB in the beginning and 615.5 MB in the end (delta: 455.1 MB). Free memory was 68.5 MB in the beginning and 406.3 MB in the end (delta: -337.9 MB). Peak memory consumption was 117.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 516]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={182:166}, methaneLevelCritical=145, pumpRunning=134, systemActive=133, waterLevel=139] [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=134, systemActive=133, waterLevel=139] [L526] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=145, pumpRunning=134, systemActive=133, waterLevel=1] [L527] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=134, systemActive=133, waterLevel=1] [L691] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=133, waterLevel=1] [L692] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=145, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L124] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L129] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L907] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L908] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L130] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L130] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L132] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L134] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L135] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L114] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L622] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L623] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L624] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L625] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L626] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L629] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L631] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L633] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L639] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L641] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L643] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L544] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L649] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L651] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L653] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L559] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L653] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L659] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L661] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L663] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L847] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L663] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L676] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L699] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L706] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L708] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L728] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L731] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L733] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L825] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L826] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L827] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L831] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L606] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L609] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L613] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L614] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L831] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L831] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L833] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L836] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L838] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L839] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L733] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L733] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L735] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L737] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L756] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L737] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L708] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L714] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L853] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L854] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L858] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L565] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L568] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L569] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L858] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L858] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L860] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L862] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L780] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L783] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L784] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L862] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L862] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L864] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L866] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L516] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 48.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 40.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2028 SDtfs, 5150 SDslu, 4404 SDs, 0 SdLazy, 7917 SolverSat, 1461 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 239 SyntacticMatches, 2 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 19.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=948occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 2130 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 1817 NumberOfCodeBlocks, 1817 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1604 ConstructedInterpolants, 0 QuantifiedInterpolants, 728540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...