/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:44:39,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:44:39,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:44:39,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 00:44:39,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 00:44:39,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 00:44:39,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 00:44:39,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 00:44:39,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 00:44:39,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 00:44:39,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 00:44:39,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 00:44:39,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 00:44:39,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 00:44:39,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 00:44:39,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 00:44:39,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 00:44:39,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 00:44:39,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 00:44:39,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 00:44:39,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 00:44:39,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 00:44:39,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 00:44:39,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 00:44:39,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 00:44:39,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 00:44:39,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 00:44:39,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 00:44:39,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 00:44:39,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 00:44:39,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 00:44:39,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 00:44:39,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 00:44:39,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 00:44:39,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 00:44:39,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 00:44:39,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 00:44:39,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 00:44:39,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 00:44:39,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 00:44:39,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 00:44:39,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 00:44:39,508 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:44:39,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:44:39,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:44:39,510 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:44:39,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:44:39,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:44:39,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:44:39,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:44:39,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:44:39,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:44:39,512 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:44:39,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:44:39,512 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:44:39,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:44:39,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:44:39,513 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:44:39,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:44:39,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:44:39,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:44:39,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:44:39,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:44:39,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:44:39,515 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 00:44:39,515 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 00:44:39,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:44:39,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:44:39,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:44:39,984 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:44:39,984 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:44:39,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2021-02-22 00:44:40,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f4460dc/4163bde334604dc6906f28e5b0e8283b/FLAG53a8a8da3 [2021-02-22 00:44:40,830 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:44:40,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2021-02-22 00:44:40,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f4460dc/4163bde334604dc6906f28e5b0e8283b/FLAG53a8a8da3 [2021-02-22 00:44:41,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f4460dc/4163bde334604dc6906f28e5b0e8283b [2021-02-22 00:44:41,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:44:41,050 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:44:41,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:44:41,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:44:41,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:44:41,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:44:41" (1/1) ... [2021-02-22 00:44:41,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713be7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41, skipping insertion in model container [2021-02-22 00:44:41,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:44:41" (1/1) ... [2021-02-22 00:44:41,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:44:41,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:44:41,482 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_product49.cil.c[18106,18119] [2021-02-22 00:44:41,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:44:41,501 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:44:41,577 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_product49.cil.c[18106,18119] [2021-02-22 00:44:41,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:44:41,640 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:44:41,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41 WrapperNode [2021-02-22 00:44:41,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:44:41,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:44:41,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:44:41,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:44:41,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41" (1/1) ... [2021-02-22 00:44:41,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41" (1/1) ... [2021-02-22 00:44:41,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41" (1/1) ... [2021-02-22 00:44:41,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41" (1/1) ... [2021-02-22 00:44:41,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41" (1/1) ... [2021-02-22 00:44:41,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41" (1/1) ... [2021-02-22 00:44:41,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41" (1/1) ... [2021-02-22 00:44:41,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:44:41,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:44:41,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:44:41,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:44:41,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:44:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:44:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:44:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 00:44:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:44:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-22 00:44:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 00:44:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 00:44:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 00:44:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 00:44:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:44:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 00:44:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 00:44:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 00:44:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 00:44:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 00:44:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 00:44:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 00:44:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 00:44:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-22 00:44:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 00:44:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 00:44:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 00:44:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 00:44:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 00:44:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 00:44:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-22 00:44:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-22 00:44:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 00:44:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 00:44:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 00:44:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 00:44:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 00:44:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 00:44:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 00:44:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 00:44:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 00:44:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 00:44:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 00:44:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-22 00:44:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-22 00:44:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 00:44:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:44:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:44:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:44:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:44:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 00:44:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 00:44:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 00:44:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 00:44:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 00:44:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-22 00:44:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 00:44:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 00:44:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 00:44:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 00:44:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 00:44:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 00:44:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 00:44:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 00:44:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 00:44:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 00:44:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 00:44:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 00:44:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:44:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 00:44:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 00:44:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 00:44:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 00:44:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 00:44:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:44:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 00:44:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 00:44:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:44:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 00:44:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 00:44:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:44:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 00:44:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 00:44:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 00:44:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 00:44:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 00:44:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-22 00:44:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-22 00:44:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 00:44:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 00:44:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 00:44:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 00:44:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-22 00:44:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-22 00:44:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-22 00:44:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 00:44:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 00:44:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 00:44:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:44:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:44:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:44:43,343 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:44:43,344 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 00:44:43,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:44:43 BoogieIcfgContainer [2021-02-22 00:44:43,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:44:43,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:44:43,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:44:43,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:44:43,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:44:41" (1/3) ... [2021-02-22 00:44:43,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e636b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:44:43, skipping insertion in model container [2021-02-22 00:44:43,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:44:41" (2/3) ... [2021-02-22 00:44:43,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e636b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:44:43, skipping insertion in model container [2021-02-22 00:44:43,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:44:43" (3/3) ... [2021-02-22 00:44:43,358 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2021-02-22 00:44:43,366 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:44:43,372 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:44:43,393 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:44:43,418 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:44:43,419 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:44:43,419 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 00:44:43,419 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:44:43,419 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:44:43,419 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:44:43,420 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:44:43,420 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:44:43,443 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2021-02-22 00:44:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-22 00:44:43,464 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:43,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:43,466 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:43,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:43,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1692639048, now seen corresponding path program 1 times [2021-02-22 00:44:43,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:43,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534435833] [2021-02-22 00:44:43,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:43,568 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:43,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:43,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:43,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:43,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:44,300 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:44,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:44,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:44,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:44,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:44,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:44,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:44,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:44,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:44,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:44,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:44,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:44,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:44,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:44,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:44,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:44,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:44:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:44,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:44,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:44,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 00:44:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:44,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:44,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:44,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:44,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534435833] [2021-02-22 00:44:44,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:44,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 00:44:44,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775375482] [2021-02-22 00:44:44,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 00:44:44,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:44,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 00:44:44,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 00:44:44,519 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 3 states. [2021-02-22 00:44:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:46,348 INFO L93 Difference]: Finished difference Result 495 states and 586 transitions. [2021-02-22 00:44:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 00:44:46,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2021-02-22 00:44:46,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:46,368 INFO L225 Difference]: With dead ends: 495 [2021-02-22 00:44:46,368 INFO L226 Difference]: Without dead ends: 307 [2021-02-22 00:44:46,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 00:44:46,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-02-22 00:44:46,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 266. [2021-02-22 00:44:46,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-02-22 00:44:46,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 288 transitions. [2021-02-22 00:44:46,546 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 288 transitions. Word has length 147 [2021-02-22 00:44:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:46,547 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 288 transitions. [2021-02-22 00:44:46,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 00:44:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 288 transitions. [2021-02-22 00:44:46,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-02-22 00:44:46,552 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:46,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:46,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:44:46,552 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:46,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:46,553 INFO L82 PathProgramCache]: Analyzing trace with hash 487640680, now seen corresponding path program 1 times [2021-02-22 00:44:46,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:46,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226474495] [2021-02-22 00:44:46,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:46,561 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:46,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:46,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:46,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:46,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:47,045 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:47,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:47,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:47,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:47,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:47,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:47,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:47,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:47,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:47,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:47,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:47,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:47,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:47,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:47,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:47,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:47,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 00:44:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:47,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:47,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:47,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 00:44:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:47,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:47,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:47,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226474495] [2021-02-22 00:44:47,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:47,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 00:44:47,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898837778] [2021-02-22 00:44:47,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 00:44:47,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:47,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 00:44:47,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 00:44:47,195 INFO L87 Difference]: Start difference. First operand 266 states and 288 transitions. Second operand 4 states. [2021-02-22 00:44:47,938 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:49,041 INFO L93 Difference]: Finished difference Result 411 states and 460 transitions. [2021-02-22 00:44:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 00:44:49,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2021-02-22 00:44:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:49,047 INFO L225 Difference]: With dead ends: 411 [2021-02-22 00:44:49,047 INFO L226 Difference]: Without dead ends: 290 [2021-02-22 00:44:49,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 00:44:49,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-02-22 00:44:49,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 256. [2021-02-22 00:44:49,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2021-02-22 00:44:49,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 275 transitions. [2021-02-22 00:44:49,151 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 275 transitions. Word has length 148 [2021-02-22 00:44:49,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:49,152 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 275 transitions. [2021-02-22 00:44:49,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 00:44:49,152 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 275 transitions. [2021-02-22 00:44:49,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-22 00:44:49,154 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:49,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:49,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 00:44:49,155 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:49,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:49,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1888366931, now seen corresponding path program 1 times [2021-02-22 00:44:49,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:49,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434367576] [2021-02-22 00:44:49,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:49,162 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:49,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:49,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:49,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:49,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:44:49,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:49,640 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:49,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:49,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:49,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:44:49,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:49,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:49,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:49,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:49,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:49,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:49,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:49,807 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 00:44:49,811 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 00:44:49,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:49,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:49,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-22 00:44:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:49,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:49,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-22 00:44:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:49,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:49,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:49,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434367576] [2021-02-22 00:44:49,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:49,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 00:44:49,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070217700] [2021-02-22 00:44:49,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 00:44:49,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:49,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 00:44:49,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 00:44:49,908 INFO L87 Difference]: Start difference. First operand 256 states and 275 transitions. Second operand 9 states. [2021-02-22 00:44:50,518 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:50,975 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:44:51,395 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:44:51,791 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:52,210 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:44:52,550 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:44:54,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:54,164 INFO L93 Difference]: Finished difference Result 431 states and 485 transitions. [2021-02-22 00:44:54,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-22 00:44:54,165 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2021-02-22 00:44:54,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:54,169 INFO L225 Difference]: With dead ends: 431 [2021-02-22 00:44:54,169 INFO L226 Difference]: Without dead ends: 290 [2021-02-22 00:44:54,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-22 00:44:54,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-02-22 00:44:54,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 256. [2021-02-22 00:44:54,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2021-02-22 00:44:54,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 274 transitions. [2021-02-22 00:44:54,303 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 274 transitions. Word has length 157 [2021-02-22 00:44:54,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:54,304 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 274 transitions. [2021-02-22 00:44:54,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 00:44:54,305 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 274 transitions. [2021-02-22 00:44:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-02-22 00:44:54,307 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:54,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:44:54,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 00:44:54,308 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:54,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:54,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1510432270, now seen corresponding path program 1 times [2021-02-22 00:44:54,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:54,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507507390] [2021-02-22 00:44:54,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:54,313 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,729 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:54,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-22 00:44:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:54,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 00:44:54,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-22 00:44:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-22 00:44:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:54,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:54,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:54,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507507390] [2021-02-22 00:44:54,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:54,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 00:44:54,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184416246] [2021-02-22 00:44:54,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 00:44:54,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:54,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 00:44:54,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-22 00:44:54,947 INFO L87 Difference]: Start difference. First operand 256 states and 274 transitions. Second operand 6 states. [2021-02-22 00:44:55,542 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:44:57,103 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:44:57,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:44:57,840 INFO L93 Difference]: Finished difference Result 562 states and 640 transitions. [2021-02-22 00:44:57,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-22 00:44:57,840 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2021-02-22 00:44:57,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:44:57,845 INFO L225 Difference]: With dead ends: 562 [2021-02-22 00:44:57,845 INFO L226 Difference]: Without dead ends: 421 [2021-02-22 00:44:57,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-02-22 00:44:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-02-22 00:44:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 362. [2021-02-22 00:44:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2021-02-22 00:44:57,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 389 transitions. [2021-02-22 00:44:57,989 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 389 transitions. Word has length 170 [2021-02-22 00:44:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:44:57,990 INFO L480 AbstractCegarLoop]: Abstraction has 362 states and 389 transitions. [2021-02-22 00:44:57,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 00:44:57,990 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 389 transitions. [2021-02-22 00:44:57,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-02-22 00:44:57,993 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:44:57,993 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] [2021-02-22 00:44:57,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 00:44:57,993 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:44:57,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:44:57,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1060519215, now seen corresponding path program 1 times [2021-02-22 00:44:57,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:44:57,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121773691] [2021-02-22 00:44:57,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:44:57,998 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:44:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:58,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:58,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:58,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:44:58,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:44:58,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,390 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:44:58,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:44:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 00:44:58,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:44:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:44:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:44:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:44:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-22 00:44:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:44:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:58,541 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-22 00:44:58,541 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-22 00:44:58,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:44:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:58,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:44:58,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:44:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-22 00:44:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-22 00:44:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:44:58,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:44:58,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:44:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:44:58,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121773691] [2021-02-22 00:44:58,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:44:58,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 00:44:58,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008230015] [2021-02-22 00:44:58,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 00:44:58,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:44:58,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 00:44:58,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 00:44:58,712 INFO L87 Difference]: Start difference. First operand 362 states and 389 transitions. Second operand 9 states. [2021-02-22 00:44:59,367 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:45:00,549 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:00,957 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:45:01,359 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:45:01,763 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:02,220 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-22 00:45:02,684 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:45:04,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:45:04,560 INFO L93 Difference]: Finished difference Result 862 states and 1004 transitions. [2021-02-22 00:45:04,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-22 00:45:04,561 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2021-02-22 00:45:04,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:45:04,566 INFO L225 Difference]: With dead ends: 862 [2021-02-22 00:45:04,566 INFO L226 Difference]: Without dead ends: 615 [2021-02-22 00:45:04,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2021-02-22 00:45:04,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2021-02-22 00:45:04,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 538. [2021-02-22 00:45:04,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2021-02-22 00:45:04,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 592 transitions. [2021-02-22 00:45:04,846 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 592 transitions. Word has length 194 [2021-02-22 00:45:04,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:45:04,847 INFO L480 AbstractCegarLoop]: Abstraction has 538 states and 592 transitions. [2021-02-22 00:45:04,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 00:45:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 592 transitions. [2021-02-22 00:45:04,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-02-22 00:45:04,850 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:45:04,851 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] [2021-02-22 00:45:04,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 00:45:04,851 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:45:04,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:45:04,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1103325390, now seen corresponding path program 1 times [2021-02-22 00:45:04,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:45:04,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889826639] [2021-02-22 00:45:04,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:45:04,855 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:45:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:04,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:04,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:04,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:04,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:04,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:04,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:04,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:04,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:04,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:04,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:04,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:04,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:04,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:04,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,321 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:45:05,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:45:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:05,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:45:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:45:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:45:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:45:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-22 00:45:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:45:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:45:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:45:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:45:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-02-22 00:45:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:05,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:05,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-02-22 00:45:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:05,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:05,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:05,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:45:05,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889826639] [2021-02-22 00:45:05,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:45:05,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 00:45:05,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61681876] [2021-02-22 00:45:05,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 00:45:05,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:45:05,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 00:45:05,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 00:45:05,563 INFO L87 Difference]: Start difference. First operand 538 states and 592 transitions. Second operand 9 states. [2021-02-22 00:45:06,191 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:45:07,905 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:08,307 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:45:08,716 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:09,142 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:45:09,526 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:45:09,913 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:10,278 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:10,777 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:45:12,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:45:12,323 INFO L93 Difference]: Finished difference Result 1438 states and 1679 transitions. [2021-02-22 00:45:12,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-22 00:45:12,324 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2021-02-22 00:45:12,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:45:12,330 INFO L225 Difference]: With dead ends: 1438 [2021-02-22 00:45:12,331 INFO L226 Difference]: Without dead ends: 1015 [2021-02-22 00:45:12,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-02-22 00:45:12,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2021-02-22 00:45:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 900. [2021-02-22 00:45:12,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2021-02-22 00:45:12,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 999 transitions. [2021-02-22 00:45:12,715 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 999 transitions. Word has length 194 [2021-02-22 00:45:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:45:12,715 INFO L480 AbstractCegarLoop]: Abstraction has 900 states and 999 transitions. [2021-02-22 00:45:12,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 00:45:12,716 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 999 transitions. [2021-02-22 00:45:12,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-22 00:45:12,719 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:45:12,720 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] [2021-02-22 00:45:12,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 00:45:12,720 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:45:12,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:45:12,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1150639167, now seen corresponding path program 1 times [2021-02-22 00:45:12,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:45:12,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226869380] [2021-02-22 00:45:12,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:45:12,724 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:45:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:12,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:12,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:12,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:12,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:12,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:12,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:12,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:12,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:12,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:12,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:12,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:12,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:12,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:12,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:12,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:12,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:12,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:12,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,144 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:45:13,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:45:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:13,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:45:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:45:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:45:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:45:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:45:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 00:45:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:13,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:45:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:13,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:45:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:45:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:45:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-02-22 00:45:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-02-22 00:45:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:13,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:13,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:13,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:13,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:45:13,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226869380] [2021-02-22 00:45:13,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:45:13,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 00:45:13,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36299245] [2021-02-22 00:45:13,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 00:45:13,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:45:13,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 00:45:13,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 00:45:13,370 INFO L87 Difference]: Start difference. First operand 900 states and 999 transitions. Second operand 10 states. [2021-02-22 00:45:13,974 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:45:15,740 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:16,123 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 00:45:16,499 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:45:16,875 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:17,257 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:17,665 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 00:45:18,035 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:18,433 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:45:19,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:45:19,479 INFO L93 Difference]: Finished difference Result 1123 states and 1315 transitions. [2021-02-22 00:45:19,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-22 00:45:19,480 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2021-02-22 00:45:19,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:45:19,487 INFO L225 Difference]: With dead ends: 1123 [2021-02-22 00:45:19,487 INFO L226 Difference]: Without dead ends: 1120 [2021-02-22 00:45:19,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-02-22 00:45:19,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2021-02-22 00:45:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 900. [2021-02-22 00:45:19,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2021-02-22 00:45:19,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 997 transitions. [2021-02-22 00:45:19,845 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 997 transitions. Word has length 199 [2021-02-22 00:45:19,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:45:19,846 INFO L480 AbstractCegarLoop]: Abstraction has 900 states and 997 transitions. [2021-02-22 00:45:19,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 00:45:19,846 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 997 transitions. [2021-02-22 00:45:19,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-22 00:45:19,849 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:45:19,850 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] [2021-02-22 00:45:19,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-22 00:45:19,850 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:45:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:45:19,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1488353158, now seen corresponding path program 1 times [2021-02-22 00:45:19,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:45:19,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458615686] [2021-02-22 00:45:19,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:45:19,854 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:45:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:19,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:19,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:19,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:19,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,202 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:45:20,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:45:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:45:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:45:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:45:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:45:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:45:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 00:45:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:45:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:20,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:20,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:45:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:20,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:20,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:20,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:45:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:45:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-22 00:45:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-22 00:45:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:20,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:20,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:20,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:45:20,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458615686] [2021-02-22 00:45:20,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:45:20,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 00:45:20,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979858353] [2021-02-22 00:45:20,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 00:45:20,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:45:20,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 00:45:20,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-22 00:45:20,450 INFO L87 Difference]: Start difference. First operand 900 states and 997 transitions. Second operand 10 states. [2021-02-22 00:45:21,811 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:22,204 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:45:22,608 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-02-22 00:45:23,002 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:45:23,400 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:23,764 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:45:25,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:45:25,510 INFO L93 Difference]: Finished difference Result 1927 states and 2243 transitions. [2021-02-22 00:45:25,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 00:45:25,511 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2021-02-22 00:45:25,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:45:25,519 INFO L225 Difference]: With dead ends: 1927 [2021-02-22 00:45:25,520 INFO L226 Difference]: Without dead ends: 1142 [2021-02-22 00:45:25,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-02-22 00:45:25,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2021-02-22 00:45:25,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 932. [2021-02-22 00:45:25,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2021-02-22 00:45:25,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1029 transitions. [2021-02-22 00:45:25,978 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1029 transitions. Word has length 200 [2021-02-22 00:45:25,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:45:25,979 INFO L480 AbstractCegarLoop]: Abstraction has 932 states and 1029 transitions. [2021-02-22 00:45:25,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 00:45:25,979 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1029 transitions. [2021-02-22 00:45:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-22 00:45:25,982 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:45:25,982 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] [2021-02-22 00:45:25,982 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-22 00:45:25,982 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:45:25,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:45:25,983 INFO L82 PathProgramCache]: Analyzing trace with hash 514482982, now seen corresponding path program 1 times [2021-02-22 00:45:25,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:45:25,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661755938] [2021-02-22 00:45:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:45:25,986 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:45:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:26,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:26,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,326 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 00:45:26,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 00:45:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 00:45:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 00:45:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 00:45:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:26,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 00:45:26,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 00:45:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-02-22 00:45:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 00:45:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:45:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 00:45:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:26,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:26,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-22 00:45:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:26,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 00:45:26,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-02-22 00:45:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-02-22 00:45:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-02-22 00:45:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 00:45:26,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 00:45:26,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 00:45:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 00:45:26,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661755938] [2021-02-22 00:45:26,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 00:45:26,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-22 00:45:26,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812910587] [2021-02-22 00:45:26,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-22 00:45:26,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 00:45:26,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-22 00:45:26,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-22 00:45:26,596 INFO L87 Difference]: Start difference. First operand 932 states and 1029 transitions. Second operand 13 states. [2021-02-22 00:45:27,316 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 00:45:27,722 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 00:45:28,112 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:45:28,487 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:28,870 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:45:29,848 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:45:30,241 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:30,612 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:45:31,035 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 00:45:31,395 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 00:45:33,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 00:45:33,001 INFO L93 Difference]: Finished difference Result 1739 states and 2005 transitions. [2021-02-22 00:45:33,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-22 00:45:33,002 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 200 [2021-02-22 00:45:33,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 00:45:33,009 INFO L225 Difference]: With dead ends: 1739 [2021-02-22 00:45:33,009 INFO L226 Difference]: Without dead ends: 922 [2021-02-22 00:45:33,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2021-02-22 00:45:33,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2021-02-22 00:45:33,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 778. [2021-02-22 00:45:33,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2021-02-22 00:45:33,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 837 transitions. [2021-02-22 00:45:33,401 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 837 transitions. Word has length 200 [2021-02-22 00:45:33,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 00:45:33,402 INFO L480 AbstractCegarLoop]: Abstraction has 778 states and 837 transitions. [2021-02-22 00:45:33,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-22 00:45:33,402 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 837 transitions. [2021-02-22 00:45:33,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-02-22 00:45:33,406 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:45:33,406 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, 1] [2021-02-22 00:45:33,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 00:45:33,406 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:45:33,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:45:33,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1837543636, now seen corresponding path program 1 times [2021-02-22 00:45:33,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:45:33,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [294450066] [2021-02-22 00:45:33,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:45:33,411 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 00:45:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:45:33,493 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:45:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 00:45:33,589 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 00:45:33,885 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 00:45:33,885 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:45:33,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-22 00:45:33,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:45:33 BoogieIcfgContainer [2021-02-22 00:45:33,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:45:33,925 INFO L168 Benchmark]: Toolchain (without parser) took 52884.85 ms. Allocated memory was 156.2 MB in the beginning and 707.8 MB in the end (delta: 551.6 MB). Free memory was 131.4 MB in the beginning and 287.0 MB in the end (delta: -155.6 MB). Peak memory consumption was 397.4 MB. Max. memory is 8.0 GB. [2021-02-22 00:45:33,925 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:45:33,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.96 ms. Allocated memory is still 156.2 MB. Free memory was 130.3 MB in the beginning and 109.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-22 00:45:33,925 INFO L168 Benchmark]: Boogie Preprocessor took 163.91 ms. Allocated memory is still 156.2 MB. Free memory was 109.3 MB in the beginning and 105.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-22 00:45:33,926 INFO L168 Benchmark]: RCFGBuilder took 1539.35 ms. Allocated memory was 156.2 MB in the beginning and 191.9 MB in the end (delta: 35.7 MB). Free memory was 105.2 MB in the beginning and 124.3 MB in the end (delta: -19.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 8.0 GB. [2021-02-22 00:45:33,926 INFO L168 Benchmark]: TraceAbstraction took 50573.44 ms. Allocated memory was 191.9 MB in the beginning and 707.8 MB in the end (delta: 515.9 MB). Free memory was 123.8 MB in the beginning and 287.0 MB in the end (delta: -163.2 MB). Peak memory consumption was 353.2 MB. Max. memory is 8.0 GB. [2021-02-22 00:45:33,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 589.96 ms. Allocated memory is still 156.2 MB. Free memory was 130.3 MB in the beginning and 109.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 163.91 ms. Allocated memory is still 156.2 MB. Free memory was 109.3 MB in the beginning and 105.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1539.35 ms. Allocated memory was 156.2 MB in the beginning and 191.9 MB in the end (delta: 35.7 MB). Free memory was 105.2 MB in the beginning and 124.3 MB in the end (delta: -19.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 50573.44 ms. Allocated memory was 191.9 MB in the beginning and 707.8 MB in the end (delta: 515.9 MB). Free memory was 123.8 MB in the beginning and 287.0 MB in the end (delta: -163.2 MB). Peak memory consumption was 353.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 952]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L71] int cleanupTimeShifts = 4; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L547] int pumpRunning = 0; [L548] int systemActive = 1; [L845] int waterLevel = 1; [L846] int methaneLevelCritical = 0; [L152] int retValue_acc ; [L153] int tmp ; [L157] FCALL select_helpers() [L158] FCALL select_features() [L159] CALL, EXPR valid_product() [L835] int retValue_acc ; [L838] retValue_acc = 1 [L839] return (retValue_acc); [L159] RET, EXPR valid_product() [L159] tmp = valid_product() [L161] COND TRUE \read(tmp) [L163] FCALL setup() [L164] CALL runTest() [L143] CALL test() [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) [L766] CALL waterRise() [L863] COND TRUE waterLevel < 2 [L864] waterLevel = waterLevel + 1 [L766] RET waterRise() [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND TRUE \read(tmp___0) [L776] CALL changeMethaneLevel() [L875] COND FALSE !(\read(methaneLevelCritical)) [L878] methaneLevelCritical = 1 [L776] RET changeMethaneLevel() [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) [L797] CALL timeShift() [L554] COND FALSE !(\read(pumpRunning)) [L561] COND TRUE \read(systemActive) [L563] CALL processEnvironment() [L609] int tmp ; [L612] COND FALSE !(\read(pumpRunning)) [L627] CALL processEnvironment__wrappee__highWaterSensor() [L583] int tmp ; [L586] COND TRUE ! pumpRunning [L588] CALL, EXPR isHighWaterLevel() [L706] int retValue_acc ; [L707] int tmp ; [L708] int tmp___0 ; [L712] CALL, EXPR isHighWaterSensorDry() [L925] int retValue_acc ; [L928] COND FALSE !(waterLevel < 2) [L932] retValue_acc = 0 [L933] return (retValue_acc); [L712] RET, EXPR isHighWaterSensorDry() [L712] tmp = isHighWaterSensorDry() [L714] COND FALSE !(\read(tmp)) [L717] tmp___0 = 1 [L719] retValue_acc = tmp___0 [L720] return (retValue_acc); [L588] RET, EXPR isHighWaterLevel() [L588] tmp = isHighWaterLevel() [L590] COND TRUE \read(tmp) [L592] CALL activatePump() [L637] pumpRunning = 1 [L592] RET activatePump() [L627] RET processEnvironment__wrappee__highWaterSensor() [L563] RET processEnvironment() [L569] CALL __utac_acc__Specification1_spec__1() [L46] int tmp ; [L47] int tmp___0 ; [L51] CALL, EXPR isMethaneLevelCritical() [L884] int retValue_acc ; [L887] retValue_acc = methaneLevelCritical [L888] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND TRUE \read(tmp) [L55] CALL, EXPR isPumpRunning() [L661] int retValue_acc ; [L664] retValue_acc = pumpRunning [L665] return (retValue_acc); [L55] RET, EXPR isPumpRunning() [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) [L59] CALL __automaton_fail() [L952] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 646 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 50.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 41.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2204 SDtfs, 4159 SDslu, 4385 SDs, 0 SdLazy, 8257 SolverSat, 1197 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 227 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 21.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=932occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 934 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...