/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_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:03:23,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:03:23,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:03:23,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-22 01:03:23,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-22 01:03:23,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-22 01:03:23,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-22 01:03:23,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-22 01:03:23,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-22 01:03:23,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-22 01:03:23,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-22 01:03:23,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-22 01:03:23,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:03:23,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:03:23,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:03:23,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:03:23,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:03:23,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:03:23,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:03:23,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:03:23,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:03:23,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:03:23,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:03:23,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:03:23,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-22 01:03:23,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-22 01:03:23,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-22 01:03:23,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-22 01:03:23,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-22 01:03:23,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-22 01:03:23,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-22 01:03:23,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-22 01:03:23,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-22 01:03:23,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-22 01:03:23,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-22 01:03:23,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-22 01:03:23,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-22 01:03:23,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-22 01:03:23,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:03:23,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:03:23,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:03:23,547 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 01:03:23,569 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:03:23,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:03:23,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:03:23,573 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:03:23,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:03:23,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:03:23,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:03:23,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:03:23,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:03:23,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:03:23,576 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:03:23,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:03:23,576 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:03:23,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:03:23,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:03:23,577 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:03:23,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:03:23,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:03:23,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:03:23,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:03:23,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:03:23,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:03:23,578 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:03:23,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:03:23,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:03:24,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:03:24,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:03:24,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:03:24,035 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:03:24,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2021-02-22 01:03:24,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb90f8ca0/c4f046e5ea2c4b0889e2d9bbb29703fb/FLAG9c59d54c2 [2021-02-22 01:03:24,762 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:03:24,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2021-02-22 01:03:24,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb90f8ca0/c4f046e5ea2c4b0889e2d9bbb29703fb/FLAG9c59d54c2 [2021-02-22 01:03:25,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb90f8ca0/c4f046e5ea2c4b0889e2d9bbb29703fb [2021-02-22 01:03:25,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:03:25,092 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:03:25,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:03:25,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:03:25,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:03:25,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:03:25" (1/1) ... [2021-02-22 01:03:25,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2980120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25, skipping insertion in model container [2021-02-22 01:03:25,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:03:25" (1/1) ... [2021-02-22 01:03:25,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:03:25,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:03:25,445 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_product29.cil.c[13408,13421] [2021-02-22 01:03:25,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:03:25,502 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:03:25,589 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_product29.cil.c[13408,13421] [2021-02-22 01:03:25,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:03:25,659 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:03:25,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25 WrapperNode [2021-02-22 01:03:25,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:03:25,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:03:25,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:03:25,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:03:25,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25" (1/1) ... [2021-02-22 01:03:25,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25" (1/1) ... [2021-02-22 01:03:25,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25" (1/1) ... [2021-02-22 01:03:25,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25" (1/1) ... [2021-02-22 01:03:25,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25" (1/1) ... [2021-02-22 01:03:25,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25" (1/1) ... [2021-02-22 01:03:25,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25" (1/1) ... [2021-02-22 01:03:25,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:03:25,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:03:25,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:03:25,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:03:25,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25" (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 01:03:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:03:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:03:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-22 01:03:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:03:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-22 01:03:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-22 01:03:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-22 01:03:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-22 01:03:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-22 01:03:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-22 01:03:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-22 01:03:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-22 01:03:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-22 01:03:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-22 01:03:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-22 01:03:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-22 01:03:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-22 01:03:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-22 01:03:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-22 01:03:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-22 01:03:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-22 01:03:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-22 01:03:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-22 01:03:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-22 01:03:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-22 01:03:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-22 01:03:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-22 01:03:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:03:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-22 01:03:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-22 01:03:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-22 01:03:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-22 01:03:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2021-02-22 01:03:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-22 01:03:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-22 01:03:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-22 01:03:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-22 01:03:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-22 01:03:25,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-22 01:03:25,901 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-22 01:03:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:03:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:03:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:03:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:03:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 01:03:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-22 01:03:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-22 01:03:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-22 01:03:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-22 01:03:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-22 01:03:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-22 01:03:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-22 01:03:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-22 01:03:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-22 01:03:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-22 01:03:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-22 01:03:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-22 01:03:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-22 01:03:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-22 01:03:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-22 01:03:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-22 01:03:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:03:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-22 01:03:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-22 01:03:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:03:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-22 01:03:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-22 01:03:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:03:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-22 01:03:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-22 01:03:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-22 01:03:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-22 01:03:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-22 01:03:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-22 01:03:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-22 01:03:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-22 01:03:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-22 01:03:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-22 01:03:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-22 01:03:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-22 01:03:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-22 01:03:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-22 01:03:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:03:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-22 01:03:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-22 01:03:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-22 01:03:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-22 01:03:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-22 01:03:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-22 01:03:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-22 01:03:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2021-02-22 01:03:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:03:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:03:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:03:27,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:03:27,600 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-22 01:03:27,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:03:27 BoogieIcfgContainer [2021-02-22 01:03:27,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:03:27,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:03:27,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:03:27,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:03:27,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:03:25" (1/3) ... [2021-02-22 01:03:27,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6d5ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:03:27, skipping insertion in model container [2021-02-22 01:03:27,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:03:25" (2/3) ... [2021-02-22 01:03:27,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6d5ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:03:27, skipping insertion in model container [2021-02-22 01:03:27,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:03:27" (3/3) ... [2021-02-22 01:03:27,616 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2021-02-22 01:03:27,624 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:03:27,630 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:03:27,650 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:03:27,687 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:03:27,687 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:03:27,687 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:03:27,688 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:03:27,688 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:03:27,688 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:03:27,689 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:03:27,689 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:03:27,716 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2021-02-22 01:03:27,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-22 01:03:27,736 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:03:27,738 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 01:03:27,738 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:03:27,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:03:27,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1444282729, now seen corresponding path program 1 times [2021-02-22 01:03:27,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:03:27,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397620349] [2021-02-22 01:03:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:03:27,838 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:03:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:28,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:28,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:28,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:28,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:28,936 WARN L202 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:03:28,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:03:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:29,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:29,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:29,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:03:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:29,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:29,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:29,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:03:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:29,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:29,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:29,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:03:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:29,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:29,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:29,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:03:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:29,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:29,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:29,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-22 01:03:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:29,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:29,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:29,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:03:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:29,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:29,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:29,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-22 01:03:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:29,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:29,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:29,134 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 01:03:29,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397620349] [2021-02-22 01:03:29,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:03:29,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 01:03:29,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439541108] [2021-02-22 01:03:29,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 01:03:29,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:03:29,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 01:03:29,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:03:29,161 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2021-02-22 01:03:31,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:03:31,508 INFO L93 Difference]: Finished difference Result 483 states and 576 transitions. [2021-02-22 01:03:31,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 01:03:31,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-22 01:03:31,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:03:31,529 INFO L225 Difference]: With dead ends: 483 [2021-02-22 01:03:31,529 INFO L226 Difference]: Without dead ends: 301 [2021-02-22 01:03:31,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 01:03:31,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-02-22 01:03:31,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 260. [2021-02-22 01:03:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2021-02-22 01:03:31,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 283 transitions. [2021-02-22 01:03:31,736 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 283 transitions. Word has length 158 [2021-02-22 01:03:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:03:31,737 INFO L480 AbstractCegarLoop]: Abstraction has 260 states and 283 transitions. [2021-02-22 01:03:31,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 01:03:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 283 transitions. [2021-02-22 01:03:31,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-22 01:03:31,743 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:03:31,743 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 01:03:31,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:03:31,744 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:03:31,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:03:31,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1480340107, now seen corresponding path program 1 times [2021-02-22 01:03:31,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:03:31,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436378935] [2021-02-22 01:03:31,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:03:31,750 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:03:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:31,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:31,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:31,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:31,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:31,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:31,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:32,436 WARN L202 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:03:32,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:03:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:32,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:32,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:32,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:03:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:32,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:32,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:32,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:03:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:32,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:32,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:32,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:03:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:32,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:32,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:32,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:03:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:32,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:32,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:32,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-22 01:03:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:32,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:32,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:32,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-22 01:03:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:32,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:32,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:32,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-22 01:03:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:32,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:32,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:32,582 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 01:03:32,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436378935] [2021-02-22 01:03:32,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:03:32,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 01:03:32,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020116764] [2021-02-22 01:03:32,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 01:03:32,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:03:32,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 01:03:32,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 01:03:32,587 INFO L87 Difference]: Start difference. First operand 260 states and 283 transitions. Second operand 4 states. [2021-02-22 01:03:33,751 WARN L202 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-22 01:03:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:03:35,358 INFO L93 Difference]: Finished difference Result 399 states and 450 transitions. [2021-02-22 01:03:35,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 01:03:35,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-22 01:03:35,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:03:35,364 INFO L225 Difference]: With dead ends: 399 [2021-02-22 01:03:35,365 INFO L226 Difference]: Without dead ends: 284 [2021-02-22 01:03:35,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 01:03:35,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-02-22 01:03:35,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 250. [2021-02-22 01:03:35,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2021-02-22 01:03:35,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 270 transitions. [2021-02-22 01:03:35,486 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 270 transitions. Word has length 159 [2021-02-22 01:03:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:03:35,487 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 270 transitions. [2021-02-22 01:03:35,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 01:03:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 270 transitions. [2021-02-22 01:03:35,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-22 01:03:35,491 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:03:35,492 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 01:03:35,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:03:35,492 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:03:35,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:03:35,493 INFO L82 PathProgramCache]: Analyzing trace with hash -2121635617, now seen corresponding path program 1 times [2021-02-22 01:03:35,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:03:35,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979233768] [2021-02-22 01:03:35,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:03:35,497 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:03:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:35,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:35,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:35,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:35,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:35,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:35,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:35,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:35,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:03:35,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:35,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:36,258 WARN L202 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:03:36,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:03:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:36,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:36,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:36,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:36,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:03:36,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:03:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:36,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:36,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:36,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:03:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:36,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:36,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:36,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:03:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:36,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:36,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:36,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:36,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:03:36,383 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-22 01:03:36,386 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-22 01:03:36,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:03:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:36,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:36,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:36,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:03:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:36,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:36,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:36,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-22 01:03:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:36,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:36,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:36,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-22 01:03:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:36,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:36,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:36,491 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 01:03:36,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979233768] [2021-02-22 01:03:36,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:03:36,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:03:36,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084716045] [2021-02-22 01:03:36,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:03:36,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:03:36,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:03:36,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:03:36,501 INFO L87 Difference]: Start difference. First operand 250 states and 270 transitions. Second operand 9 states. [2021-02-22 01:03:37,558 WARN L202 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:03:38,338 WARN L202 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-22 01:03:39,009 WARN L202 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-22 01:03:39,687 WARN L202 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:03:40,359 WARN L202 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:03:41,015 WARN L202 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:03:43,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:03:43,369 INFO L93 Difference]: Finished difference Result 419 states and 475 transitions. [2021-02-22 01:03:43,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-22 01:03:43,371 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-22 01:03:43,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:03:43,374 INFO L225 Difference]: With dead ends: 419 [2021-02-22 01:03:43,374 INFO L226 Difference]: Without dead ends: 284 [2021-02-22 01:03:43,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-22 01:03:43,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-02-22 01:03:43,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 250. [2021-02-22 01:03:43,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2021-02-22 01:03:43,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 269 transitions. [2021-02-22 01:03:43,469 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 269 transitions. Word has length 168 [2021-02-22 01:03:43,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:03:43,470 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 269 transitions. [2021-02-22 01:03:43,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:03:43,470 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 269 transitions. [2021-02-22 01:03:43,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-22 01:03:43,473 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:03:43,473 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 01:03:43,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:03:43,474 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:03:43,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:03:43,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1804083470, now seen corresponding path program 1 times [2021-02-22 01:03:43,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:03:43,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092476829] [2021-02-22 01:03:43,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:03:43,478 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:03:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:43,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:43,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:43,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:43,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:43,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:43,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:43,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:43,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:43,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:43,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:43,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:43,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:43,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:43,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:43,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:43,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,174 WARN L202 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:03:44,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:03:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:03:44,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:03:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:03:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:03:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:03:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-22 01:03:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:03:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:03:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-22 01:03:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-22 01:03:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:44,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:44,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-02-22 01:03:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:44,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:44,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:44,408 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 01:03:44,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092476829] [2021-02-22 01:03:44,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:03:44,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:03:44,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224601495] [2021-02-22 01:03:44,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:03:44,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:03:44,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:03:44,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:03:44,415 INFO L87 Difference]: Start difference. First operand 250 states and 269 transitions. Second operand 9 states. [2021-02-22 01:03:45,384 WARN L202 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:03:49,012 WARN L202 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:03:49,692 WARN L202 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:03:50,461 WARN L202 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:03:51,146 WARN L202 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-22 01:03:51,799 WARN L202 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:03:52,761 WARN L202 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:03:53,422 WARN L202 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-22 01:03:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:03:54,174 INFO L93 Difference]: Finished difference Result 591 states and 699 transitions. [2021-02-22 01:03:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-22 01:03:54,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2021-02-22 01:03:54,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:03:54,180 INFO L225 Difference]: With dead ends: 591 [2021-02-22 01:03:54,180 INFO L226 Difference]: Without dead ends: 456 [2021-02-22 01:03:54,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-22 01:03:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-02-22 01:03:54,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 379. [2021-02-22 01:03:54,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2021-02-22 01:03:54,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 421 transitions. [2021-02-22 01:03:54,383 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 421 transitions. Word has length 181 [2021-02-22 01:03:54,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:03:54,384 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 421 transitions. [2021-02-22 01:03:54,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:03:54,385 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 421 transitions. [2021-02-22 01:03:54,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-02-22 01:03:54,389 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:03:54,390 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] [2021-02-22 01:03:54,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:03:54,390 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:03:54,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:03:54,391 INFO L82 PathProgramCache]: Analyzing trace with hash 650293260, now seen corresponding path program 1 times [2021-02-22 01:03:54,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:03:54,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681491977] [2021-02-22 01:03:54,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:03:54,396 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:03:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:54,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:54,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:54,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:54,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:54,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:54,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:54,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:54,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:54,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:54,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:54,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:54,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,059 WARN L202 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-22 01:03:55,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:03:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:03:55,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-22 01:03:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-22 01:03:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-22 01:03:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-22 01:03:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-02-22 01:03:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-22 01:03:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-02-22 01:03:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:03:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-22 01:03:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-22 01:03:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-02-22 01:03:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-02-22 01:03:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:03:55,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:03:55,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:03:55,284 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 01:03:55,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681491977] [2021-02-22 01:03:55,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:03:55,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-22 01:03:55,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904840965] [2021-02-22 01:03:55,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-22 01:03:55,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:03:55,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-22 01:03:55,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-22 01:03:55,287 INFO L87 Difference]: Start difference. First operand 379 states and 421 transitions. Second operand 6 states. [2021-02-22 01:03:56,273 WARN L202 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-22 01:03:57,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:03:57,392 INFO L93 Difference]: Finished difference Result 558 states and 640 transitions. [2021-02-22 01:03:57,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-22 01:03:57,394 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 191 [2021-02-22 01:03:57,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:03:57,397 INFO L225 Difference]: With dead ends: 558 [2021-02-22 01:03:57,397 INFO L226 Difference]: Without dead ends: 294 [2021-02-22 01:03:57,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-02-22 01:03:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-02-22 01:03:57,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 273. [2021-02-22 01:03:57,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2021-02-22 01:03:57,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 288 transitions. [2021-02-22 01:03:57,499 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 288 transitions. Word has length 191 [2021-02-22 01:03:57,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:03:57,500 INFO L480 AbstractCegarLoop]: Abstraction has 273 states and 288 transitions. [2021-02-22 01:03:57,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-22 01:03:57,500 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 288 transitions. [2021-02-22 01:03:57,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-02-22 01:03:57,503 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:03:57,503 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] [2021-02-22 01:03:57,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:03:57,503 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:03:57,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:03:57,504 INFO L82 PathProgramCache]: Analyzing trace with hash -2073224505, now seen corresponding path program 1 times [2021-02-22 01:03:57,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:03:57,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813979045] [2021-02-22 01:03:57,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:03:57,512 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:03:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:03:57,593 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:03:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:03:57,664 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:03:57,860 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 01:03:57,860 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 01:03:57,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 01:03:57,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:03:57 BoogieIcfgContainer [2021-02-22 01:03:57,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:03:57,893 INFO L168 Benchmark]: Toolchain (without parser) took 32808.85 ms. Allocated memory was 151.0 MB in the beginning and 361.8 MB in the end (delta: 210.8 MB). Free memory was 126.1 MB in the beginning and 186.6 MB in the end (delta: -60.4 MB). Peak memory consumption was 151.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:03:57,895 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:03:57,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.39 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 104.1 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:03:57,895 INFO L168 Benchmark]: Boogie Preprocessor took 115.57 ms. Allocated memory is still 151.0 MB. Free memory was 104.1 MB in the beginning and 131.6 MB in the end (delta: -27.6 MB). Peak memory consumption was 5.8 MB. Max. memory is 8.0 GB. [2021-02-22 01:03:57,896 INFO L168 Benchmark]: RCFGBuilder took 1828.06 ms. Allocated memory is still 151.0 MB. Free memory was 131.6 MB in the beginning and 85.0 MB in the end (delta: 46.6 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. [2021-02-22 01:03:57,896 INFO L168 Benchmark]: TraceAbstraction took 30279.50 ms. Allocated memory was 151.0 MB in the beginning and 361.8 MB in the end (delta: 210.8 MB). Free memory was 84.5 MB in the beginning and 186.6 MB in the end (delta: -102.1 MB). Peak memory consumption was 108.7 MB. Max. memory is 8.0 GB. [2021-02-22 01:03:57,903 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 561.39 ms. Allocated memory is still 151.0 MB. Free memory was 125.0 MB in the beginning and 104.1 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 115.57 ms. Allocated memory is still 151.0 MB. Free memory was 104.1 MB in the beginning and 131.6 MB in the end (delta: -27.6 MB). Peak memory consumption was 5.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1828.06 ms. Allocated memory is still 151.0 MB. Free memory was 131.6 MB in the beginning and 85.0 MB in the end (delta: 46.6 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 30279.50 ms. Allocated memory was 151.0 MB in the beginning and 361.8 MB in the end (delta: 210.8 MB). Free memory was 84.5 MB in the beginning and 186.6 MB in the end (delta: -102.1 MB). Peak memory consumption was 108.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 582]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L343] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int cleanupTimeShifts = 4; [L688] int pumpRunning = 0; [L689] int systemActive = 1; [L663] int retValue_acc ; [L664] int tmp ; [L668] FCALL select_helpers() [L669] FCALL select_features() [L670] CALL, EXPR valid_product() [L569] int retValue_acc ; [L572] retValue_acc = 1 [L573] return (retValue_acc); [L670] RET, EXPR valid_product() [L670] tmp = valid_product() [L672] COND TRUE \read(tmp) [L674] FCALL setup() [L675] CALL runTest() [L657] CALL test() [L884] int splverifierCounter ; [L885] int tmp ; [L886] int tmp___0 ; [L887] int tmp___1 ; [L888] int tmp___2 ; [L891] splverifierCounter = 0 [L893] COND TRUE 1 [L895] COND TRUE splverifierCounter < 4 [L901] tmp = __VERIFIER_nondet_int() [L903] COND TRUE \read(tmp) [L905] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L905] RET waterRise() [L911] tmp___0 = __VERIFIER_nondet_int() [L913] COND FALSE !(\read(tmp___0)) [L921] tmp___2 = __VERIFIER_nondet_int() [L923] COND TRUE \read(tmp___2) [L936] CALL timeShift() [L695] COND FALSE !(\read(pumpRunning)) [L702] COND TRUE \read(systemActive) [L704] CALL processEnvironment() [L750] int tmp ; [L753] COND FALSE !(\read(pumpRunning)) [L768] CALL processEnvironment__wrappee__methaneQuery() [L724] int tmp ; [L727] COND FALSE !(\read(pumpRunning)) [L742] FCALL processEnvironment__wrappee__base() [L768] RET processEnvironment__wrappee__methaneQuery() [L704] RET processEnvironment() [L710] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L819] int retValue_acc ; [L822] retValue_acc = pumpRunning [L823] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L582] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 639 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 23.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1136 SDtfs, 1426 SDslu, 1383 SDs, 0 SdLazy, 2744 SolverSat, 407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=379occurred 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 207 StatesRemovedByMinimization, 5 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...