/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_spec3_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:01:38,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:01:38,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:01:38,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 01:01:38,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 01:01:38,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 01:01:38,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 01:01:38,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 01:01:38,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 01:01:38,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 01:01:38,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 01:01:38,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 01:01:38,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:01:38,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:01:38,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:01:38,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:01:38,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:01:38,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:01:38,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:01:38,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:01:38,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:01:38,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:01:38,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:01:38,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:01:38,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 01:01:38,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 01:01:38,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 01:01:38,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 01:01:38,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 01:01:38,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 01:01:38,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 01:01:38,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 01:01:38,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 01:01:38,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 01:01:38,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 01:01:38,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 01:01:38,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 01:01:38,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 01:01:38,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:01:38,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:01:38,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:01:38,461 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:01:38,485 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:01:38,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:01:38,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:01:38,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:01:38,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:01:38,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:01:38,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:01:38,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:01:38,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:01:38,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:01:38,493 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:01:38,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:01:38,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:01:38,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:01:38,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:01:38,495 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:01:38,495 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:01:38,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:01:38,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:01:38,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:01:38,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:01:38,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:01:38,497 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:01:38,497 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:01:38,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:01:38,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:01:38,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:01:38,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:01:38,952 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:01:38,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2021-02-22 01:01:39,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80deed44b/d100352e34b04ecbaf29a03cbc50d59b/FLAG6ba460a72 [2021-02-22 01:01:39,655 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:01:39,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2021-02-22 01:01:39,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80deed44b/d100352e34b04ecbaf29a03cbc50d59b/FLAG6ba460a72 [2021-02-22 01:01:39,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80deed44b/d100352e34b04ecbaf29a03cbc50d59b [2021-02-22 01:01:39,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:01:39,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:01:39,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:01:39,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:01:39,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:01:39,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:01:39" (1/1) ... [2021-02-22 01:01:39,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f9abec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:39, skipping insertion in model container [2021-02-22 01:01:39,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:01:39" (1/1) ... [2021-02-22 01:01:40,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:01:40,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:01:40,333 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_spec3_product07.cil.c[1281,1294] [2021-02-22 01:01:40,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:01:40,568 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:01:40,585 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_spec3_product07.cil.c[1281,1294] [2021-02-22 01:01:40,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:01:40,677 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:01:40,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40 WrapperNode [2021-02-22 01:01:40,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:01:40,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:01:40,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:01:40,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:01:40,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... [2021-02-22 01:01:40,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:01:40,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:01:40,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:01:40,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:01:40,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:01:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:01:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:01:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 01:01:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:01:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 01:01:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 01:01:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 01:01:40,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 01:01:40,950 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 01:01:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 01:01:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 01:01:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 01:01:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 01:01:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:01:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 01:01:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 01:01:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 01:01:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 01:01:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 01:01:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 01:01:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-22 01:01:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 01:01:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 01:01:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 01:01:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 01:01:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 01:01:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 01:01:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 01:01:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 01:01:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-22 01:01:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 01:01:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 01:01:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 01:01:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 01:01:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 01:01:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 01:01:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 01:01:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:01:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:01:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:01:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:01:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:01:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 01:01:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 01:01:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 01:01:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 01:01:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 01:01:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 01:01:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 01:01:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 01:01:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 01:01:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 01:01:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 01:01:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 01:01:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 01:01:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 01:01:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 01:01:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:01:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 01:01:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 01:01:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 01:01:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 01:01:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 01:01:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:01:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 01:01:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 01:01:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:01:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 01:01:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 01:01:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:01:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 01:01:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 01:01:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 01:01:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 01:01:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 01:01:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 01:01:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-22 01:01:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 01:01:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 01:01:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 01:01:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 01:01:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-22 01:01:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 01:01:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 01:01:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 01:01:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:01:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:01:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:01:42,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:01:42,038 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 01:01:42,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:01:42 BoogieIcfgContainer [2021-02-22 01:01:42,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:01:42,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:01:42,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:01:42,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:01:42,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:01:39" (1/3) ... [2021-02-22 01:01:42,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a290ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:01:42, skipping insertion in model container [2021-02-22 01:01:42,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:01:40" (2/3) ... [2021-02-22 01:01:42,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a290ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:01:42, skipping insertion in model container [2021-02-22 01:01:42,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:01:42" (3/3) ... [2021-02-22 01:01:42,051 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2021-02-22 01:01:42,058 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:01:42,063 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:01:42,083 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:01:42,120 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:01:42,121 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:01:42,121 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:01:42,121 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:01:42,121 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:01:42,121 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:01:42,121 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:01:42,122 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:01:42,147 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2021-02-22 01:01:42,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-22 01:01:42,168 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:01:42,170 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] [2021-02-22 01:01:42,170 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:01:42,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:01:42,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1184195747, now seen corresponding path program 1 times [2021-02-22 01:01:42,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:01:42,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233972110] [2021-02-22 01:01:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:01:42,271 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:01:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:42,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:42,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:42,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:42,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,044 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:01:43,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:01:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:01:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:01:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:01:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:01:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 01:01:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:01:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-22 01:01:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:43,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:43,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:01:43,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233972110] [2021-02-22 01:01:43,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:01:43,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 01:01:43,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665892838] [2021-02-22 01:01:43,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 01:01:43,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:01:43,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 01:01:43,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:01:43,289 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 3 states. [2021-02-22 01:01:44,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:01:44,856 INFO L93 Difference]: Finished difference Result 433 states and 520 transitions. [2021-02-22 01:01:44,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 01:01:44,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-22 01:01:44,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:01:44,886 INFO L225 Difference]: With dead ends: 433 [2021-02-22 01:01:44,886 INFO L226 Difference]: Without dead ends: 276 [2021-02-22 01:01:44,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:01:44,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-02-22 01:01:45,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 235. [2021-02-22 01:01:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2021-02-22 01:01:45,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 255 transitions. [2021-02-22 01:01:45,151 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 255 transitions. Word has length 158 [2021-02-22 01:01:45,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:01:45,154 INFO L480 AbstractCegarLoop]: Abstraction has 235 states and 255 transitions. [2021-02-22 01:01:45,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 01:01:45,155 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 255 transitions. [2021-02-22 01:01:45,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-22 01:01:45,170 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:01:45,170 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] [2021-02-22 01:01:45,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:01:45,171 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:01:45,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:01:45,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1802358870, now seen corresponding path program 1 times [2021-02-22 01:01:45,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:01:45,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881272233] [2021-02-22 01:01:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:01:45,184 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:01:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:45,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,714 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:01:45,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:01:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:01:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:01:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:01:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:01:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-22 01:01:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 01:01:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-22 01:01:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:45,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:45,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:01:45,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881272233] [2021-02-22 01:01:45,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:01:45,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:01:45,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670905187] [2021-02-22 01:01:45,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:01:45,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:01:45,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:01:45,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:01:45,865 INFO L87 Difference]: Start difference. First operand 235 states and 255 transitions. Second operand 4 states. [2021-02-22 01:01:46,629 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:01:47,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:01:47,519 INFO L93 Difference]: Finished difference Result 343 states and 386 transitions. [2021-02-22 01:01:47,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:01:47,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-22 01:01:47,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:01:47,524 INFO L225 Difference]: With dead ends: 343 [2021-02-22 01:01:47,524 INFO L226 Difference]: Without dead ends: 259 [2021-02-22 01:01:47,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:01:47,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-02-22 01:01:47,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 225. [2021-02-22 01:01:47,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2021-02-22 01:01:47,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 242 transitions. [2021-02-22 01:01:47,629 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 242 transitions. Word has length 159 [2021-02-22 01:01:47,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:01:47,630 INFO L480 AbstractCegarLoop]: Abstraction has 225 states and 242 transitions. [2021-02-22 01:01:47,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:01:47,630 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 242 transitions. [2021-02-22 01:01:47,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-22 01:01:47,633 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:01:47,633 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] [2021-02-22 01:01:47,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:01:47,633 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:01:47,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:01:47,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1569416838, now seen corresponding path program 1 times [2021-02-22 01:01:47,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:01:47,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197621619] [2021-02-22 01:01:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:01:47,638 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:01:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:47,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:47,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:47,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:47,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:47,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:01:47,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:01:47,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:01:47,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:47,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:48,229 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:01:48,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:01:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:48,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:48,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:48,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:48,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:01:48,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:01:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:48,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:48,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:48,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:01:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:48,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:48,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:48,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:01:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:48,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:48,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:48,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:48,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:01:48,399 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 01:01:48,402 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 01:01:48,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:01:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:48,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:48,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:48,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:01:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:48,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:48,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:48,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-22 01:01:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:48,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:48,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:48,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-22 01:01:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:48,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:48,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:01:48,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197621619] [2021-02-22 01:01:48,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:01:48,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:01:48,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695896072] [2021-02-22 01:01:48,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:01:48,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:01:48,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:01:48,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:01:48,536 INFO L87 Difference]: Start difference. First operand 225 states and 242 transitions. Second operand 9 states. [2021-02-22 01:01:49,123 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:01:49,579 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:01:49,935 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:01:50,322 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:50,659 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:01:50,994 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:52,025 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:01:54,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:01:54,002 INFO L93 Difference]: Finished difference Result 583 states and 673 transitions. [2021-02-22 01:01:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 01:01:54,003 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-22 01:01:54,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:01:54,008 INFO L225 Difference]: With dead ends: 583 [2021-02-22 01:01:54,009 INFO L226 Difference]: Without dead ends: 473 [2021-02-22 01:01:54,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-22 01:01:54,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-02-22 01:01:54,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 410. [2021-02-22 01:01:54,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2021-02-22 01:01:54,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 459 transitions. [2021-02-22 01:01:54,209 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 459 transitions. Word has length 168 [2021-02-22 01:01:54,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:01:54,210 INFO L480 AbstractCegarLoop]: Abstraction has 410 states and 459 transitions. [2021-02-22 01:01:54,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:01:54,210 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 459 transitions. [2021-02-22 01:01:54,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-22 01:01:54,213 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:01:54,213 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] [2021-02-22 01:01:54,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:01:54,214 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:01:54,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:01:54,214 INFO L82 PathProgramCache]: Analyzing trace with hash -705763829, now seen corresponding path program 1 times [2021-02-22 01:01:54,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:01:54,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117212917] [2021-02-22 01:01:54,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:01:54,218 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:01:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:54,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:54,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:54,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:54,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:54,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:54,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:54,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,643 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:01:54,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:01:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:01:54,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:01:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:01:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:01:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:01:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-22 01:01:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:01:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-22 01:01:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-22 01:01:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:54,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:01:54,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-02-22 01:01:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:01:54,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:01:54,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:01:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:01:54,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117212917] [2021-02-22 01:01:54,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:01:54,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:01:54,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722970320] [2021-02-22 01:01:54,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:01:54,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:01:54,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:01:54,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:01:54,860 INFO L87 Difference]: Start difference. First operand 410 states and 459 transitions. Second operand 9 states. [2021-02-22 01:01:55,496 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:01:57,427 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:57,819 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:01:58,220 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:58,604 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:01:58,963 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:01:59,338 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:01:59,686 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:02:00,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:02:00,548 INFO L93 Difference]: Finished difference Result 1167 states and 1458 transitions. [2021-02-22 01:02:00,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-22 01:02:00,548 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2021-02-22 01:02:00,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:02:00,562 INFO L225 Difference]: With dead ends: 1167 [2021-02-22 01:02:00,562 INFO L226 Difference]: Without dead ends: 872 [2021-02-22 01:02:00,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-22 01:02:00,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2021-02-22 01:02:00,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 684. [2021-02-22 01:02:00,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2021-02-22 01:02:00,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 790 transitions. [2021-02-22 01:02:00,864 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 790 transitions. Word has length 176 [2021-02-22 01:02:00,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:02:00,864 INFO L480 AbstractCegarLoop]: Abstraction has 684 states and 790 transitions. [2021-02-22 01:02:00,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:02:00,865 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 790 transitions. [2021-02-22 01:02:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-22 01:02:00,869 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:02:00,869 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] [2021-02-22 01:02:00,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:02:00,870 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:02:00,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:02:00,870 INFO L82 PathProgramCache]: Analyzing trace with hash 866825365, now seen corresponding path program 1 times [2021-02-22 01:02:00,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:02:00,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308178508] [2021-02-22 01:02:00,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:02:00,874 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:02:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:02:00,965 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:02:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:02:01,049 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:02:01,294 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 01:02:01,294 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 01:02:01,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:02:01,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:02:01 BoogieIcfgContainer [2021-02-22 01:02:01,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:02:01,320 INFO L168 Benchmark]: Toolchain (without parser) took 21345.54 ms. Allocated memory was 158.3 MB in the beginning and 468.7 MB in the end (delta: 310.4 MB). Free memory was 134.1 MB in the beginning and 428.7 MB in the end (delta: -294.6 MB). Peak memory consumption was 282.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:02:01,320 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 158.3 MB. Free memory is still 130.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:02:01,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.43 ms. Allocated memory is still 158.3 MB. Free memory was 133.0 MB in the beginning and 113.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:02:01,322 INFO L168 Benchmark]: Boogie Preprocessor took 84.41 ms. Allocated memory is still 158.3 MB. Free memory was 113.0 MB in the beginning and 109.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-22 01:02:01,322 INFO L168 Benchmark]: RCFGBuilder took 1278.02 ms. Allocated memory was 158.3 MB in the beginning and 209.7 MB in the end (delta: 51.4 MB). Free memory was 109.1 MB in the beginning and 177.2 MB in the end (delta: -68.1 MB). Peak memory consumption was 60.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:02:01,323 INFO L168 Benchmark]: TraceAbstraction took 19275.05 ms. Allocated memory was 209.7 MB in the beginning and 468.7 MB in the end (delta: 259.0 MB). Free memory was 176.6 MB in the beginning and 428.7 MB in the end (delta: -252.0 MB). Peak memory consumption was 273.3 MB. Max. memory is 8.0 GB. [2021-02-22 01:02:01,325 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 158.3 MB. Free memory is still 130.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 692.43 ms. Allocated memory is still 158.3 MB. Free memory was 133.0 MB in the beginning and 113.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 84.41 ms. Allocated memory is still 158.3 MB. Free memory was 113.0 MB in the beginning and 109.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1278.02 ms. Allocated memory was 158.3 MB in the beginning and 209.7 MB in the end (delta: 51.4 MB). Free memory was 109.1 MB in the beginning and 177.2 MB in the end (delta: -68.1 MB). Peak memory consumption was 60.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 19275.05 ms. Allocated memory was 209.7 MB in the beginning and 468.7 MB in the end (delta: 259.0 MB). Free memory was 176.6 MB in the beginning and 428.7 MB in the end (delta: -252.0 MB). Peak memory consumption was 273.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L89] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L813] int waterLevel = 1; [L814] int methaneLevelCritical = 0; [L167] int retValue_acc ; [L168] int tmp ; [L172] FCALL select_helpers() [L173] FCALL select_features() [L174] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L174] RET, EXPR valid_product() [L174] tmp = valid_product() [L176] COND TRUE \read(tmp) [L178] FCALL setup() [L179] CALL runTest() [L161] CALL test() [L747] int splverifierCounter ; [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L751] int tmp___2 ; [L754] splverifierCounter = 0 [L756] COND TRUE 1 [L758] COND TRUE splverifierCounter < 4 [L764] tmp = __VERIFIER_nondet_int() [L766] COND TRUE \read(tmp) [L768] CALL waterRise() [L831] COND TRUE waterLevel < 2 [L832] waterLevel = waterLevel + 1 [L768] RET waterRise() [L774] tmp___0 = __VERIFIER_nondet_int() [L776] COND FALSE !(\read(tmp___0)) [L784] tmp___2 = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp___2) [L801] CALL timeShift() [L605] COND FALSE !(\read(pumpRunning)) [L612] COND TRUE \read(systemActive) [L614] CALL processEnvironment() [L634] int tmp ; [L637] COND FALSE !(\read(pumpRunning)) [L652] FCALL processEnvironment__wrappee__base() [L614] RET processEnvironment() [L620] CALL __utac_acc__Specification3_spec__1() [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L566] CALL, EXPR isMethaneLevelCritical() [L852] int retValue_acc ; [L855] retValue_acc = methaneLevelCritical [L856] return (retValue_acc); [L566] RET, EXPR isMethaneLevelCritical() [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L572] CALL, EXPR getWaterLevel() [L884] int retValue_acc ; [L887] retValue_acc = waterLevel [L888] return (retValue_acc); [L572] RET, EXPR getWaterLevel() [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L576] CALL, EXPR isPumpRunning() [L686] int retValue_acc ; [L689] retValue_acc = pumpRunning [L690] return (retValue_acc); [L576] RET, EXPR isPumpRunning() [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) [L582] CALL __automaton_fail() [L46] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 605 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 898 SDtfs, 1124 SDslu, 1273 SDs, 0 SdLazy, 2694 SolverSat, 404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=684occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 326 StatesRemovedByMinimization, 4 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...