/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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:57:31,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:57:31,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:57:31,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:57:31,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:57:31,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:57:31,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:57:31,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:57:31,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:57:31,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:57:31,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:57:31,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:57:31,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:57:31,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:57:31,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:57:31,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:57:31,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:57:31,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:57:31,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:57:31,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:57:31,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:57:31,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:57:31,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:57:31,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:57:31,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:57:31,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:57:31,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:57:31,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:57:31,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:57:31,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:57:31,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:57:31,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:57:31,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:57:31,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:57:31,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:57:31,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:57:31,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:57:31,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:57:31,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:57:31,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:57:31,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:57:31,958 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 19:57:31,971 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:57:31,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:57:31,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:57:31,973 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:57:31,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:57:31,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:57:31,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:57:31,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:57:31,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:57:31,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:57:31,975 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:57:31,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:57:31,975 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:57:31,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:57:31,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:57:31,976 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:57:31,976 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:57:31,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:57:31,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:57:31,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:57:31,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:57:31,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:57:31,978 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:57:32,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:57:32,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:57:32,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:57:32,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:57:32,371 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:57:32,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-10-23 19:57:32,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45ec8696c/6507dc092603435d8e51d96bd8f86d9b/FLAGf237b4e73 [2020-10-23 19:57:33,189 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:57:33,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-10-23 19:57:33,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45ec8696c/6507dc092603435d8e51d96bd8f86d9b/FLAGf237b4e73 [2020-10-23 19:57:33,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45ec8696c/6507dc092603435d8e51d96bd8f86d9b [2020-10-23 19:57:33,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:57:33,493 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:57:33,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:33,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:57:33,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:57:33,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:33" (1/1) ... [2020-10-23 19:57:33,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526fbd29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:33, skipping insertion in model container [2020-10-23 19:57:33,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:33" (1/1) ... [2020-10-23 19:57:33,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:57:33,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:57:33,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:33,973 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:57:34,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:34,203 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:57:34,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:34 WrapperNode [2020-10-23 19:57:34,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:34,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:57:34,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:57:34,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:57:34,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:34" (1/1) ... [2020-10-23 19:57:34,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:34" (1/1) ... [2020-10-23 19:57:34,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:34" (1/1) ... [2020-10-23 19:57:34,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:34" (1/1) ... [2020-10-23 19:57:34,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:34" (1/1) ... [2020-10-23 19:57:34,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:34" (1/1) ... [2020-10-23 19:57:34,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:34" (1/1) ... [2020-10-23 19:57:34,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:57:34,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:57:34,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:57:34,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:57:34,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:34" (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 19:57:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:57:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:57:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:57:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:57:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:57:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:57:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:57:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:57:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:57:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:57:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:57:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:57:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:57:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:57:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:57:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:57:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:57:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:57:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:57:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 19:57:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:57:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:57:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:57:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:57:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:57:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:57:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:57:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:57:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:57:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:57:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:57:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:57:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:57:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:57:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:57:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:57:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:57:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:57:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:57:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:57:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:57:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:57:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:57:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:57:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:57:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:57:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:57:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:57:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:57:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:57:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:57:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:57:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:57:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:57:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:57:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:57:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:57:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:57:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:57:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:57:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:57:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:57:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:57:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:57:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:57:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:57:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:57:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:57:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:57:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:57:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:57:34,391 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:57:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 19:57:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:57:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:57:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:57:34,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:57:36,112 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:57:36,113 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:57:36,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:36 BoogieIcfgContainer [2020-10-23 19:57:36,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:57:36,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:57:36,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:57:36,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:57:36,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:57:33" (1/3) ... [2020-10-23 19:57:36,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a5f5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:36, skipping insertion in model container [2020-10-23 19:57:36,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:34" (2/3) ... [2020-10-23 19:57:36,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a5f5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:36, skipping insertion in model container [2020-10-23 19:57:36,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:36" (3/3) ... [2020-10-23 19:57:36,133 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-10-23 19:57:36,147 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:57:36,153 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:57:36,168 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:57:36,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:57:36,193 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:57:36,193 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:57:36,193 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:57:36,193 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:57:36,194 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:57:36,194 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:57:36,194 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:57:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2020-10-23 19:57:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:57:36,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:36,241 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 19:57:36,242 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 19:57:36,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:36,249 INFO L82 PathProgramCache]: Analyzing trace with hash -194274368, now seen corresponding path program 1 times [2020-10-23 19:57:36,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:36,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239622141] [2020-10-23 19:57:36,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:36,344 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:37,348 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:37,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:37,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:37,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:37,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:37,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:37,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:57:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:37,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:37,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:37,581 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 19:57:37,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239622141] [2020-10-23 19:57:37,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:37,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:57:37,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939119654] [2020-10-23 19:57:37,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:57:37,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:37,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:57:37,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:57:37,608 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 3 states. [2020-10-23 19:57:39,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:39,537 INFO L93 Difference]: Finished difference Result 507 states and 599 transitions. [2020-10-23 19:57:39,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:57:39,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:57:39,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:39,557 INFO L225 Difference]: With dead ends: 507 [2020-10-23 19:57:39,557 INFO L226 Difference]: Without dead ends: 313 [2020-10-23 19:57:39,563 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 19:57:39,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-10-23 19:57:39,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 270. [2020-10-23 19:57:39,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-23 19:57:39,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 292 transitions. [2020-10-23 19:57:39,746 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 292 transitions. Word has length 159 [2020-10-23 19:57:39,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:39,749 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 292 transitions. [2020-10-23 19:57:39,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:57:39,749 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 292 transitions. [2020-10-23 19:57:39,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:57:39,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:39,766 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 19:57:39,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:57:39,767 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 19:57:39,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:39,767 INFO L82 PathProgramCache]: Analyzing trace with hash 385989418, now seen corresponding path program 1 times [2020-10-23 19:57:39,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:39,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93289185] [2020-10-23 19:57:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:39,774 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,284 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:40,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:57:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:57:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:57:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:40,396 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 19:57:40,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93289185] [2020-10-23 19:57:40,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:40,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:57:40,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484352202] [2020-10-23 19:57:40,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:57:40,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:40,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:57:40,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:57:40,399 INFO L87 Difference]: Start difference. First operand 270 states and 292 transitions. Second operand 4 states. [2020-10-23 19:57:41,208 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:42,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:42,430 INFO L93 Difference]: Finished difference Result 412 states and 460 transitions. [2020-10-23 19:57:42,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:57:42,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:57:42,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:42,437 INFO L225 Difference]: With dead ends: 412 [2020-10-23 19:57:42,437 INFO L226 Difference]: Without dead ends: 296 [2020-10-23 19:57:42,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:57:42,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-23 19:57:42,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 260. [2020-10-23 19:57:42,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-10-23 19:57:42,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 279 transitions. [2020-10-23 19:57:42,549 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 279 transitions. Word has length 160 [2020-10-23 19:57:42,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:42,550 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 279 transitions. [2020-10-23 19:57:42,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:57:42,550 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 279 transitions. [2020-10-23 19:57:42,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 19:57:42,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:42,553 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] [2020-10-23 19:57:42,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:57:42,554 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 19:57:42,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:42,554 INFO L82 PathProgramCache]: Analyzing trace with hash 209596061, now seen corresponding path program 1 times [2020-10-23 19:57:42,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:42,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411434047] [2020-10-23 19:57:42,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:42,558 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:43,006 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:43,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:43,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:43,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:43,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:43,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:43,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:43,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:43,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 19:57:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:43,222 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 19:57:43,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411434047] [2020-10-23 19:57:43,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:43,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:57:43,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241737957] [2020-10-23 19:57:43,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:57:43,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:43,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:57:43,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:57:43,225 INFO L87 Difference]: Start difference. First operand 260 states and 279 transitions. Second operand 9 states. [2020-10-23 19:57:44,054 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:44,540 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:57:44,906 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:57:45,301 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:45,676 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:46,057 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:47,328 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:49,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:49,922 INFO L93 Difference]: Finished difference Result 693 states and 789 transitions. [2020-10-23 19:57:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:57:49,929 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 19:57:49,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:49,933 INFO L225 Difference]: With dead ends: 693 [2020-10-23 19:57:49,934 INFO L226 Difference]: Without dead ends: 548 [2020-10-23 19:57:49,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 19:57:49,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-10-23 19:57:50,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 467. [2020-10-23 19:57:50,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-10-23 19:57:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 516 transitions. [2020-10-23 19:57:50,183 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 516 transitions. Word has length 169 [2020-10-23 19:57:50,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:50,184 INFO L481 AbstractCegarLoop]: Abstraction has 467 states and 516 transitions. [2020-10-23 19:57:50,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:57:50,184 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 516 transitions. [2020-10-23 19:57:50,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-23 19:57:50,188 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:50,188 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] [2020-10-23 19:57:50,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:57:50,189 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 19:57:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:50,189 INFO L82 PathProgramCache]: Analyzing trace with hash 247885752, now seen corresponding path program 1 times [2020-10-23 19:57:50,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:50,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460297993] [2020-10-23 19:57:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:50,193 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,588 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:50,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 19:57:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:57:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:57:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:57:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 19:57:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:50,747 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 19:57:50,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460297993] [2020-10-23 19:57:50,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:50,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:57:50,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313429053] [2020-10-23 19:57:50,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:57:50,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:50,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:57:50,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:57:50,753 INFO L87 Difference]: Start difference. First operand 467 states and 516 transitions. Second operand 6 states. [2020-10-23 19:57:51,474 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:53,584 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:54,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:54,408 INFO L93 Difference]: Finished difference Result 1175 states and 1366 transitions. [2020-10-23 19:57:54,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 19:57:54,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-10-23 19:57:54,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:54,416 INFO L225 Difference]: With dead ends: 1175 [2020-10-23 19:57:54,416 INFO L226 Difference]: Without dead ends: 823 [2020-10-23 19:57:54,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:57:54,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2020-10-23 19:57:54,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 705. [2020-10-23 19:57:54,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-10-23 19:57:54,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 778 transitions. [2020-10-23 19:57:54,791 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 778 transitions. Word has length 177 [2020-10-23 19:57:54,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:54,791 INFO L481 AbstractCegarLoop]: Abstraction has 705 states and 778 transitions. [2020-10-23 19:57:54,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:57:54,792 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 778 transitions. [2020-10-23 19:57:54,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:57:54,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:54,795 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 19:57:54,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:57:54,796 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 19:57:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:54,796 INFO L82 PathProgramCache]: Analyzing trace with hash 84091940, now seen corresponding path program 1 times [2020-10-23 19:57:54,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:54,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746318530] [2020-10-23 19:57:54,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:54,804 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,274 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:55,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:57:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:57:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:57:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:57:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:55,446 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 19:57:55,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746318530] [2020-10-23 19:57:55,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:55,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:57:55,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976988407] [2020-10-23 19:57:55,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:57:55,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:55,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:57:55,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:57:55,449 INFO L87 Difference]: Start difference. First operand 705 states and 778 transitions. Second operand 9 states. [2020-10-23 19:57:56,075 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:57,833 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:58,242 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:58,712 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:59,165 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:59,515 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:59,920 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:00,303 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:02,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:02,032 INFO L93 Difference]: Finished difference Result 1819 states and 2108 transitions. [2020-10-23 19:58:02,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:58:02,039 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:58:02,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:02,046 INFO L225 Difference]: With dead ends: 1819 [2020-10-23 19:58:02,047 INFO L226 Difference]: Without dead ends: 1229 [2020-10-23 19:58:02,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:58:02,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-10-23 19:58:02,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1146. [2020-10-23 19:58:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1146 states. [2020-10-23 19:58:02,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1281 transitions. [2020-10-23 19:58:02,542 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1281 transitions. Word has length 178 [2020-10-23 19:58:02,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:02,543 INFO L481 AbstractCegarLoop]: Abstraction has 1146 states and 1281 transitions. [2020-10-23 19:58:02,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:58:02,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1281 transitions. [2020-10-23 19:58:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:58:02,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:02,547 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 19:58:02,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:58:02,548 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 19:58:02,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:02,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1944397624, now seen corresponding path program 1 times [2020-10-23 19:58:02,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:02,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934547484] [2020-10-23 19:58:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:02,552 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:58:02,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:58:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:58:02,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:58:02,961 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:58:02,962 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:58:02,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:58:03,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:58:03 BoogieIcfgContainer [2020-10-23 19:58:03,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:58:03,008 INFO L168 Benchmark]: Toolchain (without parser) took 29519.74 ms. Allocated memory was 155.2 MB in the beginning and 621.8 MB in the end (delta: 466.6 MB). Free memory was 130.4 MB in the beginning and 550.0 MB in the end (delta: -419.6 MB). Peak memory consumption was 310.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:03,009 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 125.8 MB. Free memory is still 82.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:58:03,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.99 ms. Allocated memory is still 155.2 MB. Free memory was 129.8 MB in the beginning and 108.9 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:03,016 INFO L168 Benchmark]: Boogie Preprocessor took 84.97 ms. Allocated memory is still 155.2 MB. Free memory was 108.9 MB in the beginning and 105.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:03,017 INFO L168 Benchmark]: RCFGBuilder took 1825.54 ms. Allocated memory is still 155.2 MB. Free memory was 104.8 MB in the beginning and 86.8 MB in the end (delta: 18.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:03,018 INFO L168 Benchmark]: TraceAbstraction took 26886.43 ms. Allocated memory was 155.2 MB in the beginning and 621.8 MB in the end (delta: 466.6 MB). Free memory was 86.8 MB in the beginning and 550.0 MB in the end (delta: -463.2 MB). Peak memory consumption was 265.5 MB. Max. memory is 8.0 GB. [2020-10-23 19:58:03,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 125.8 MB. Free memory is still 82.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 707.99 ms. Allocated memory is still 155.2 MB. Free memory was 129.8 MB in the beginning and 108.9 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 84.97 ms. Allocated memory is still 155.2 MB. Free memory was 108.9 MB in the beginning and 105.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1825.54 ms. Allocated memory is still 155.2 MB. Free memory was 104.8 MB in the beginning and 86.8 MB in the end (delta: 18.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26886.43 ms. Allocated memory was 155.2 MB in the beginning and 621.8 MB in the end (delta: 466.6 MB). Free memory was 86.8 MB in the beginning and 550.0 MB in the end (delta: -463.2 MB). Peak memory consumption was 265.5 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: [L42] int cleanupTimeShifts = 4; [L361] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L599] int pumpRunning = 0; [L600] int systemActive = 1; [L851] int waterLevel = 1; [L852] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L785] int splverifierCounter ; [L786] int tmp ; [L787] int tmp___0 ; [L788] int tmp___1 ; [L789] int tmp___2 ; [L792] splverifierCounter = 0 [L794] COND TRUE 1 [L796] COND TRUE splverifierCounter < 4 [L802] tmp = __VERIFIER_nondet_int() [L804] COND TRUE \read(tmp) [L806] CALL waterRise() [L869] COND TRUE waterLevel < 2 [L870] waterLevel = waterLevel + 1 [L806] RET waterRise() [L812] tmp___0 = __VERIFIER_nondet_int() [L814] COND FALSE !(\read(tmp___0)) [L822] tmp___2 = __VERIFIER_nondet_int() [L824] COND FALSE !(\read(tmp___2)) [L828] tmp___1 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___1) [L832] CALL stopSystem() [L772] COND FALSE !(\read(pumpRunning)) [L779] systemActive = 0 [L832] RET stopSystem() [L839] CALL timeShift() [L606] COND FALSE !(\read(pumpRunning)) [L613] COND FALSE !(\read(systemActive)) [L621] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; [L165] CALL, EXPR isMethaneLevelCritical() [L890] int retValue_acc ; [L893] retValue_acc = methaneLevelCritical [L894] return (retValue_acc); [L165] RET, EXPR isMethaneLevelCritical() [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L922] int retValue_acc ; [L925] retValue_acc = waterLevel [L926] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND TRUE tmp___0 == 2 [L175] CALL, EXPR isPumpRunning() [L705] int retValue_acc ; [L708] retValue_acc = pumpRunning [L709] return (retValue_acc); [L175] RET, EXPR isPumpRunning() [L175] tmp___1 = isPumpRunning() [L177] COND FALSE !(\read(tmp___1)) [L181] CALL __automaton_fail() [L150] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product43.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 640 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1289 SDtfs, 1887 SDslu, 1582 SDs, 0 SdLazy, 3573 SolverSat, 622 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1146occurred 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: 1.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 361 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...