/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:57:49,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:57:49,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:57:49,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:57:49,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:57:49,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:57:49,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:57:49,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:57:49,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:57:49,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:57:49,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:57:49,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:57:49,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:57:49,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:57:49,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:57:49,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:57:49,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:57:49,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:57:49,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:57:49,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:57:49,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:57:49,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:57:49,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:57:49,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:57:49,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:57:49,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:57:49,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:57:49,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:57:49,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:57:49,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:57:49,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:57:49,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:57:49,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:57:49,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:57:49,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:57:49,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:57:49,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:57:49,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:57:49,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:57:49,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:57:49,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:57:49,438 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:57:49,462 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:57:49,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:57:49,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:57:49,467 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:57:49,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:57:49,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:57:49,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:57:49,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:57:49,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:57:49,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:57:49,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:57:49,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:57:49,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:57:49,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:57:49,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:57:49,471 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:57:49,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:57:49,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:57:49,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:57:49,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:57:49,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:57:49,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:57:49,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:57:49,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:57:49,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:57:49,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:57:49,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:57:49,884 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:57:49,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-10-23 19:57:49,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be33cdfd1/21b1811d0640435abfb0672a7f6cd7c7/FLAG99f1e33d5 [2020-10-23 19:57:50,776 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:57:50,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-10-23 19:57:50,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be33cdfd1/21b1811d0640435abfb0672a7f6cd7c7/FLAG99f1e33d5 [2020-10-23 19:57:51,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be33cdfd1/21b1811d0640435abfb0672a7f6cd7c7 [2020-10-23 19:57:51,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:57:51,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:57:51,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:51,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:57:51,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:57:51,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:51" (1/1) ... [2020-10-23 19:57:51,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af28c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51, skipping insertion in model container [2020-10-23 19:57:51,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:51" (1/1) ... [2020-10-23 19:57:51,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:57:51,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:57:51,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:51,564 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:57:51,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:51,741 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:57:51,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51 WrapperNode [2020-10-23 19:57:51,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:51,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:57:51,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:57:51,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:57:51,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51" (1/1) ... [2020-10-23 19:57:51,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51" (1/1) ... [2020-10-23 19:57:51,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51" (1/1) ... [2020-10-23 19:57:51,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51" (1/1) ... [2020-10-23 19:57:51,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51" (1/1) ... [2020-10-23 19:57:51,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51" (1/1) ... [2020-10-23 19:57:51,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51" (1/1) ... [2020-10-23 19:57:51,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:57:51,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:57:51,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:57:51,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:57:51,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51" (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 [2020-10-23 19:57:51,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:57:51,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:57:51,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:51,971 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:57:51,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:51,971 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:57:51,971 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:57:51,971 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:57:51,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:57:51,972 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:57:51,972 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:57:51,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:57:51,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:57:51,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:57:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:57:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:57:51,973 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:57:51,974 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:57:51,974 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:57:51,974 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:57:51,974 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:57:51,974 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:57:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:57:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:57:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:57:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:57:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:57:51,975 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:57:51,976 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:57:51,976 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:57:51,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:57:51,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:57:51,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:57:51,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:57:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:57:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:57:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:57:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:57:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:57:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:57:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:57:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:57:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:57:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:57:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:57:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:57:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:57:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:57:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:57:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:57:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:57:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:57:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:57:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:57:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:57:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:57:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:57:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:57:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:57:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:57:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:57:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:57:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:57:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:57:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:57:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:57:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:57:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:57:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:57:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:57:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:57:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:57:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:57:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:57:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:57:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:57:51,984 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:57:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:57:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:57:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:57:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:57:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:57:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:57:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:57:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:57:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:57:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:57:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:57:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:57:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:57:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:57:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:57:53,636 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:57:53,636 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:57:53,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:53 BoogieIcfgContainer [2020-10-23 19:57:53,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:57:53,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:57:53,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:57:53,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:57:53,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:57:51" (1/3) ... [2020-10-23 19:57:53,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca8d1e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:53, skipping insertion in model container [2020-10-23 19:57:53,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:51" (2/3) ... [2020-10-23 19:57:53,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca8d1e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:53, skipping insertion in model container [2020-10-23 19:57:53,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:53" (3/3) ... [2020-10-23 19:57:53,649 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2020-10-23 19:57:53,661 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:57:53,667 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:57:53,679 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:57:53,702 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:57:53,703 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:57:53,703 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:57:53,703 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:57:53,703 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:57:53,703 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:57:53,703 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:57:53,703 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:57:53,728 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2020-10-23 19:57:53,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:57:53,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:53,751 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] [2020-10-23 19:57:53,752 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:57:53,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:53,759 INFO L82 PathProgramCache]: Analyzing trace with hash 2048092690, now seen corresponding path program 1 times [2020-10-23 19:57:53,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:53,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596319338] [2020-10-23 19:57:53,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:53,845 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:54,914 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:54,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:57:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:55,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596319338] [2020-10-23 19:57:55,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:55,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:57:55,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809824322] [2020-10-23 19:57:55,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:57:55,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:55,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:57:55,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:57:55,139 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 3 states. [2020-10-23 19:57:57,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:57,929 INFO L93 Difference]: Finished difference Result 544 states and 644 transitions. [2020-10-23 19:57:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:57:57,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:57:57,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:57,951 INFO L225 Difference]: With dead ends: 544 [2020-10-23 19:57:57,951 INFO L226 Difference]: Without dead ends: 332 [2020-10-23 19:57:57,957 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 [2020-10-23 19:57:57,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-23 19:57:58,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 288. [2020-10-23 19:57:58,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-10-23 19:57:58,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 313 transitions. [2020-10-23 19:57:58,125 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 313 transitions. Word has length 159 [2020-10-23 19:57:58,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:58,126 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 313 transitions. [2020-10-23 19:57:58,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:57:58,126 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 313 transitions. [2020-10-23 19:57:58,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:57:58,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:58,132 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] [2020-10-23 19:57:58,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:57:58,133 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:57:58,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:58,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1440392562, now seen corresponding path program 1 times [2020-10-23 19:57:58,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:58,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435778867] [2020-10-23 19:57:58,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:58,139 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:58,902 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:58,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:58,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:58,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:58,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:58,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:58,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:57:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:58,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:57:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:58,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:57:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:59,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435778867] [2020-10-23 19:57:59,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:59,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:57:59,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113307336] [2020-10-23 19:57:59,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:57:59,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:59,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:57:59,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:57:59,003 INFO L87 Difference]: Start difference. First operand 288 states and 313 transitions. Second operand 4 states. [2020-10-23 19:58:00,301 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:02,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:02,425 INFO L93 Difference]: Finished difference Result 448 states and 503 transitions. [2020-10-23 19:58:02,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:58:02,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:58:02,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:02,431 INFO L225 Difference]: With dead ends: 448 [2020-10-23 19:58:02,432 INFO L226 Difference]: Without dead ends: 315 [2020-10-23 19:58:02,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:58:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-10-23 19:58:02,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 278. [2020-10-23 19:58:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-23 19:58:02,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 300 transitions. [2020-10-23 19:58:02,540 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 300 transitions. Word has length 160 [2020-10-23 19:58:02,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:02,541 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 300 transitions. [2020-10-23 19:58:02,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:58:02,541 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 300 transitions. [2020-10-23 19:58:02,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:58:02,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:02,544 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] [2020-10-23 19:58:02,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:58:02,545 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:58:02,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:02,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1546232232, now seen corresponding path program 1 times [2020-10-23 19:58:02,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:02,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081695487] [2020-10-23 19:58:02,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:02,551 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:03,444 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:03,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:03,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:03,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:03,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:03,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:03,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:58:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:03,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:58:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:03,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:58:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:03,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:58:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:03,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:03,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081695487] [2020-10-23 19:58:03,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:03,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:58:03,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878617195] [2020-10-23 19:58:03,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:58:03,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:03,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:58:03,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:58:03,663 INFO L87 Difference]: Start difference. First operand 278 states and 300 transitions. Second operand 10 states. [2020-10-23 19:58:04,684 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:05,536 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:58:06,277 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:58:07,002 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:07,770 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:08,483 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:10,245 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:15,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:15,141 INFO L93 Difference]: Finished difference Result 771 states and 893 transitions. [2020-10-23 19:58:15,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:58:15,142 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:58:15,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:15,149 INFO L225 Difference]: With dead ends: 771 [2020-10-23 19:58:15,149 INFO L226 Difference]: Without dead ends: 608 [2020-10-23 19:58:15,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:58:15,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-10-23 19:58:15,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 511. [2020-10-23 19:58:15,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2020-10-23 19:58:15,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 570 transitions. [2020-10-23 19:58:15,461 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 570 transitions. Word has length 173 [2020-10-23 19:58:15,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:15,462 INFO L481 AbstractCegarLoop]: Abstraction has 511 states and 570 transitions. [2020-10-23 19:58:15,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:58:15,463 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 570 transitions. [2020-10-23 19:58:15,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:58:15,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:15,469 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] [2020-10-23 19:58:15,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:58:15,470 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:58:15,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:15,471 INFO L82 PathProgramCache]: Analyzing trace with hash 443280072, now seen corresponding path program 1 times [2020-10-23 19:58:15,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:15,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97697925] [2020-10-23 19:58:15,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:15,484 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,202 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:16,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:58:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:58:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:58:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:58:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:16,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97697925] [2020-10-23 19:58:16,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:16,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:58:16,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052815950] [2020-10-23 19:58:16,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:58:16,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:16,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:58:16,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:58:16,411 INFO L87 Difference]: Start difference. First operand 511 states and 570 transitions. Second operand 9 states. [2020-10-23 19:58:17,446 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:21,287 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:22,060 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:22,931 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:23,829 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:24,579 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:25,288 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:26,032 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:28,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:28,100 INFO L93 Difference]: Finished difference Result 1384 states and 1658 transitions. [2020-10-23 19:58:28,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:58:28,102 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:58:28,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:28,110 INFO L225 Difference]: With dead ends: 1384 [2020-10-23 19:58:28,111 INFO L226 Difference]: Without dead ends: 988 [2020-10-23 19:58:28,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:58:28,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-10-23 19:58:28,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 885. [2020-10-23 19:58:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-10-23 19:58:28,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1011 transitions. [2020-10-23 19:58:28,553 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1011 transitions. Word has length 178 [2020-10-23 19:58:28,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:28,554 INFO L481 AbstractCegarLoop]: Abstraction has 885 states and 1011 transitions. [2020-10-23 19:58:28,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:58:28,554 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1011 transitions. [2020-10-23 19:58:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:58:28,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:28,560 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] [2020-10-23 19:58:28,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:58:28,561 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:58:28,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:28,562 INFO L82 PathProgramCache]: Analyzing trace with hash 918956718, now seen corresponding path program 1 times [2020-10-23 19:58:28,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:28,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820595691] [2020-10-23 19:58:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:28,565 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,226 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:29,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:58:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:58:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:58:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:58:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-23 19:58:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:29,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:58:29,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820595691] [2020-10-23 19:58:29,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:29,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:58:29,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880060711] [2020-10-23 19:58:29,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:58:29,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:29,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:58:29,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:58:29,408 INFO L87 Difference]: Start difference. First operand 885 states and 1011 transitions. Second operand 6 states. [2020-10-23 19:58:30,452 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:34,930 INFO L93 Difference]: Finished difference Result 1991 states and 2388 transitions. [2020-10-23 19:58:34,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 19:58:34,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-10-23 19:58:34,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:34,938 INFO L225 Difference]: With dead ends: 1991 [2020-10-23 19:58:34,938 INFO L226 Difference]: Without dead ends: 1221 [2020-10-23 19:58:34,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:58:34,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2020-10-23 19:58:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1120. [2020-10-23 19:58:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1120 states. [2020-10-23 19:58:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1275 transitions. [2020-10-23 19:58:35,460 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1275 transitions. Word has length 183 [2020-10-23 19:58:35,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:35,460 INFO L481 AbstractCegarLoop]: Abstraction has 1120 states and 1275 transitions. [2020-10-23 19:58:35,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:58:35,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1275 transitions. [2020-10-23 19:58:35,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:58:35,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:35,464 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] [2020-10-23 19:58:35,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:58:35,465 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:58:35,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:35,465 INFO L82 PathProgramCache]: Analyzing trace with hash 899771113, now seen corresponding path program 1 times [2020-10-23 19:58:35,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:35,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282007541] [2020-10-23 19:58:35,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:35,469 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:58:35,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:58:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:58:35,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:58:35,897 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:58:35,897 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:58:35,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:58:35,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:58:35 BoogieIcfgContainer [2020-10-23 19:58:35,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:58:35,939 INFO L168 Benchmark]: Toolchain (without parser) took 44884.34 ms. Allocated memory was 151.0 MB in the beginning and 471.9 MB in the end (delta: 320.9 MB). Free memory was 126.1 MB in the beginning and 372.8 MB in the end (delta: -246.6 MB). Peak memory consumption was 75.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:35,940 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:58:35,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.70 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 103.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:35,948 INFO L168 Benchmark]: Boogie Preprocessor took 122.30 ms. Allocated memory is still 151.0 MB. Free memory was 103.3 MB in the beginning and 99.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:35,949 INFO L168 Benchmark]: RCFGBuilder took 1773.64 ms. Allocated memory is still 151.0 MB. Free memory was 99.3 MB in the beginning and 84.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:35,951 INFO L168 Benchmark]: TraceAbstraction took 42294.53 ms. Allocated memory was 151.0 MB in the beginning and 471.9 MB in the end (delta: 320.9 MB). Free memory was 84.6 MB in the beginning and 372.8 MB in the end (delta: -288.1 MB). Peak memory consumption was 32.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:35,961 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 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 676.70 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 103.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 122.30 ms. Allocated memory is still 151.0 MB. Free memory was 103.3 MB in the beginning and 99.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1773.64 ms. Allocated memory is still 151.0 MB. Free memory was 99.3 MB in the beginning and 84.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42294.53 ms. Allocated memory was 151.0 MB in the beginning and 471.9 MB in the end (delta: 320.9 MB). Free memory was 84.6 MB in the beginning and 372.8 MB in the end (delta: -288.1 MB). Peak memory consumption was 32.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L358] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L561] int pumpRunning = 0; [L562] int systemActive = 1; [L898] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L889] int retValue_acc ; [L892] retValue_acc = 1 [L893] return (retValue_acc); [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L965] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) [L804] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L804] RET waterRise() [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L828] tmp___1 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___1) [L832] CALL stopSystem() [L761] COND FALSE !(\read(pumpRunning)) [L768] systemActive = 0 [L832] RET stopSystem() [L839] CALL timeShift() [L568] COND FALSE !(\read(pumpRunning)) [L575] COND FALSE !(\read(systemActive)) [L583] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L675] int retValue_acc ; [L678] retValue_acc = pumpRunning [L679] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L855] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product52.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 666 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 34.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1376 SDtfs, 2278 SDslu, 1683 SDs, 0 SdLazy, 4014 SolverSat, 780 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 15.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1120occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 382 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...