/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_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:08:44,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:08:44,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:08:44,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:08:44,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:08:44,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:08:44,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:08:44,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:08:44,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:08:44,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:08:44,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:08:44,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:08:44,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:08:44,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:08:44,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:08:44,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:08:44,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:08:44,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:08:44,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:08:44,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:08:44,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:08:44,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:08:44,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:08:44,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:08:44,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:08:44,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:08:44,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:08:44,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:08:44,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:08:44,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:08:44,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:08:44,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:08:44,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:08:44,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:08:44,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:08:44,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:08:44,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:08:44,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:08:44,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:08:44,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:08:44,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:08:44,486 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 20:08:44,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:08:44,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:08:44,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:08:44,528 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:08:44,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:08:44,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:08:44,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:08:44,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:08:44,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:08:44,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:08:44,532 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:08:44,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:08:44,533 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:08:44,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:08:44,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:08:44,534 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:08:44,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:08:44,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:08:44,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:08:44,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:08:44,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:08:44,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:08:44,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:08:45,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:08:45,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:08:45,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:08:45,123 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:08:45,124 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:08:45,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-10-23 20:08:45,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc35964e1/7f6a4ba4eb214f518296097e6a1fc256/FLAGc064c422d [2020-10-23 20:08:46,148 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:08:46,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-10-23 20:08:46,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc35964e1/7f6a4ba4eb214f518296097e6a1fc256/FLAGc064c422d [2020-10-23 20:08:46,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc35964e1/7f6a4ba4eb214f518296097e6a1fc256 [2020-10-23 20:08:46,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:08:46,420 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:08:46,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:08:46,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:08:46,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:08:46,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:08:46" (1/1) ... [2020-10-23 20:08:46,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608853af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:46, skipping insertion in model container [2020-10-23 20:08:46,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:08:46" (1/1) ... [2020-10-23 20:08:46,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:08:46,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:08:46,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:08:46,926 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:08:47,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:08:47,179 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:08:47,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:47 WrapperNode [2020-10-23 20:08:47,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:08:47,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:08:47,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:08:47,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:08:47,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:47" (1/1) ... [2020-10-23 20:08:47,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:47" (1/1) ... [2020-10-23 20:08:47,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:47" (1/1) ... [2020-10-23 20:08:47,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:47" (1/1) ... [2020-10-23 20:08:47,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:47" (1/1) ... [2020-10-23 20:08:47,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:47" (1/1) ... [2020-10-23 20:08:47,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:47" (1/1) ... [2020-10-23 20:08:47,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:08:47,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:08:47,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:08:47,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:08:47,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:47" (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 20:08:47,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:08:47,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:08:47,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:08:47,452 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:08:47,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:08:47,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:08:47,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:08:47,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:08:47,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:08:47,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:08:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:08:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:08:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:08:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:08:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:08:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:08:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:08:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:08:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:08:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:08:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:08:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:08:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:08:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:08:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:08:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:08:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:08:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:08:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:08:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:08:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:08:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:08:47,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:08:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:08:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:08:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:08:47,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:08:47,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:08:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:08:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:08:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:08:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:08:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:08:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:08:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:08:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:08:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:08:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:08:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:08:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:08:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:08:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:08:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:08:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:08:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:08:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:08:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:08:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:08:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:08:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:08:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:08:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:08:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:08:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:08:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:08:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:08:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:08:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:08:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:08:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:08:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:08:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:08:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:08:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:08:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:08:47,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:08:47,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:08:49,291 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:08:49,292 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:08:49,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:08:49 BoogieIcfgContainer [2020-10-23 20:08:49,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:08:49,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:08:49,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:08:49,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:08:49,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:08:46" (1/3) ... [2020-10-23 20:08:49,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220e9ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:08:49, skipping insertion in model container [2020-10-23 20:08:49,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:08:47" (2/3) ... [2020-10-23 20:08:49,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220e9ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:08:49, skipping insertion in model container [2020-10-23 20:08:49,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:08:49" (3/3) ... [2020-10-23 20:08:49,316 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-10-23 20:08:49,332 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:08:49,340 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:08:49,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:08:49,403 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:08:49,404 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:08:49,404 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:08:49,404 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:08:49,404 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:08:49,404 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:08:49,404 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:08:49,405 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:08:49,445 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2020-10-23 20:08:49,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:08:49,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:08:49,471 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] [2020-10-23 20:08:49,472 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 20:08:49,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:08:49,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1204871775, now seen corresponding path program 1 times [2020-10-23 20:08:49,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:08:49,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450452003] [2020-10-23 20:08:49,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:08:49,585 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:08:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:50,481 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:08:50,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:08:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:50,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:08:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:50,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:08:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:50,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:08:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:50,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:08:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:50,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:08:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:50,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:08:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:50,690 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 20:08:50,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450452003] [2020-10-23 20:08:50,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:08:50,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:08:50,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962346683] [2020-10-23 20:08:50,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:08:50,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:08:50,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:08:50,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:08:50,725 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 3 states. [2020-10-23 20:08:52,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:08:52,532 INFO L93 Difference]: Finished difference Result 429 states and 512 transitions. [2020-10-23 20:08:52,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:08:52,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:08:52,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:08:52,564 INFO L225 Difference]: With dead ends: 429 [2020-10-23 20:08:52,565 INFO L226 Difference]: Without dead ends: 272 [2020-10-23 20:08:52,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:08:52,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-23 20:08:52,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 233. [2020-10-23 20:08:52,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-23 20:08:52,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 251 transitions. [2020-10-23 20:08:52,886 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 251 transitions. Word has length 148 [2020-10-23 20:08:52,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:08:52,889 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 251 transitions. [2020-10-23 20:08:52,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:08:52,889 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 251 transitions. [2020-10-23 20:08:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:08:52,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:08:52,907 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] [2020-10-23 20:08:52,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:08:52,908 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 20:08:52,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:08:52,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1690018747, now seen corresponding path program 1 times [2020-10-23 20:08:52,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:08:52,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702326466] [2020-10-23 20:08:52,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:08:52,931 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:08:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:53,598 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:08:53,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:08:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:53,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:08:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:53,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:08:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:53,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:08:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:53,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:08:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:53,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:08:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:53,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:08:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:53,719 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 20:08:53,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702326466] [2020-10-23 20:08:53,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:08:53,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:08:53,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153044572] [2020-10-23 20:08:53,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:08:53,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:08:53,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:08:53,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:08:53,728 INFO L87 Difference]: Start difference. First operand 233 states and 251 transitions. Second operand 4 states. [2020-10-23 20:08:54,713 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:08:55,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:08:55,844 INFO L93 Difference]: Finished difference Result 343 states and 383 transitions. [2020-10-23 20:08:55,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:08:55,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:08:55,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:08:55,850 INFO L225 Difference]: With dead ends: 343 [2020-10-23 20:08:55,851 INFO L226 Difference]: Without dead ends: 255 [2020-10-23 20:08:55,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 20:08:55,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-23 20:08:55,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 223. [2020-10-23 20:08:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-10-23 20:08:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 238 transitions. [2020-10-23 20:08:55,944 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 238 transitions. Word has length 149 [2020-10-23 20:08:55,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:08:55,946 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 238 transitions. [2020-10-23 20:08:55,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:08:55,946 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 238 transitions. [2020-10-23 20:08:55,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 20:08:55,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:08:55,949 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] [2020-10-23 20:08:55,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:08:55,950 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 20:08:55,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:08:55,950 INFO L82 PathProgramCache]: Analyzing trace with hash 442497127, now seen corresponding path program 1 times [2020-10-23 20:08:55,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:08:55,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404189977] [2020-10-23 20:08:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:08:55,956 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:08:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:56,591 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:08:56,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:08:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:56,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:08:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:56,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:08:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:56,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:08:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:56,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:08:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:56,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:08:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:56,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 20:08:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:08:56,920 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 20:08:56,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404189977] [2020-10-23 20:08:56,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:08:56,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:08:56,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166404085] [2020-10-23 20:08:56,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:08:56,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:08:56,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:08:56,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:08:56,928 INFO L87 Difference]: Start difference. First operand 223 states and 238 transitions. Second operand 9 states. [2020-10-23 20:08:57,659 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:08:58,205 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:08:58,654 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:08:59,088 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:08:59,526 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:08:59,916 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:01,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:01,761 INFO L93 Difference]: Finished difference Result 363 states and 408 transitions. [2020-10-23 20:09:01,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:09:01,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 20:09:01,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:01,767 INFO L225 Difference]: With dead ends: 363 [2020-10-23 20:09:01,768 INFO L226 Difference]: Without dead ends: 255 [2020-10-23 20:09:01,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:09:01,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-10-23 20:09:01,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 223. [2020-10-23 20:09:01,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-10-23 20:09:01,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 237 transitions. [2020-10-23 20:09:01,868 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 237 transitions. Word has length 158 [2020-10-23 20:09:01,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:01,869 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 237 transitions. [2020-10-23 20:09:01,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:09:01,870 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 237 transitions. [2020-10-23 20:09:01,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:09:01,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:01,873 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] [2020-10-23 20:09:01,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:09:01,874 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 20:09:01,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:01,875 INFO L82 PathProgramCache]: Analyzing trace with hash 898387604, now seen corresponding path program 1 times [2020-10-23 20:09:01,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:01,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624096765] [2020-10-23 20:09:01,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:01,880 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:02,417 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:02,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:02,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:02,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:02,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:02,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:02,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:09:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:02,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:09:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:02,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:09:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:02,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:09:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:02,570 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 20:09:02,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624096765] [2020-10-23 20:09:02,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:02,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:09:02,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957878081] [2020-10-23 20:09:02,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:09:02,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:02,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:09:02,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:09:02,574 INFO L87 Difference]: Start difference. First operand 223 states and 237 transitions. Second operand 6 states. [2020-10-23 20:09:03,379 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:09:05,471 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:06,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:06,279 INFO L93 Difference]: Finished difference Result 487 states and 553 transitions. [2020-10-23 20:09:06,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 20:09:06,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-10-23 20:09:06,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:06,284 INFO L225 Difference]: With dead ends: 487 [2020-10-23 20:09:06,284 INFO L226 Difference]: Without dead ends: 379 [2020-10-23 20:09:06,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:09:06,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-10-23 20:09:06,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 318. [2020-10-23 20:09:06,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-23 20:09:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 342 transitions. [2020-10-23 20:09:06,445 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 342 transitions. Word has length 166 [2020-10-23 20:09:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:06,446 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 342 transitions. [2020-10-23 20:09:06,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:09:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 342 transitions. [2020-10-23 20:09:06,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-23 20:09:06,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:06,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:09:06,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:09:06,450 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 20:09:06,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:06,451 INFO L82 PathProgramCache]: Analyzing trace with hash -930271176, now seen corresponding path program 1 times [2020-10-23 20:09:06,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:06,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149317693] [2020-10-23 20:09:06,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:06,455 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:06,933 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:06,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:09:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:09:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:09:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:09:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-23 20:09:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 20:09:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:07,323 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 20:09:07,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1149317693] [2020-10-23 20:09:07,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:07,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 20:09:07,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652398440] [2020-10-23 20:09:07,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 20:09:07,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:07,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 20:09:07,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-23 20:09:07,335 INFO L87 Difference]: Start difference. First operand 318 states and 342 transitions. Second operand 12 states. [2020-10-23 20:09:08,237 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:08,683 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:09:09,118 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:09,542 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:09,923 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:11,062 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:11,479 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:11,936 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:12,370 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:12,752 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:13,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:13,856 INFO L93 Difference]: Finished difference Result 585 states and 665 transitions. [2020-10-23 20:09:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 20:09:13,857 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 190 [2020-10-23 20:09:13,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:13,865 INFO L225 Difference]: With dead ends: 585 [2020-10-23 20:09:13,866 INFO L226 Difference]: Without dead ends: 382 [2020-10-23 20:09:13,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-10-23 20:09:13,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-10-23 20:09:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 324. [2020-10-23 20:09:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-23 20:09:14,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 348 transitions. [2020-10-23 20:09:14,036 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 348 transitions. Word has length 190 [2020-10-23 20:09:14,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:14,037 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 348 transitions. [2020-10-23 20:09:14,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 20:09:14,037 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 348 transitions. [2020-10-23 20:09:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-23 20:09:14,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:14,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:09:14,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:09:14,041 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 20:09:14,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:14,042 INFO L82 PathProgramCache]: Analyzing trace with hash 491969688, now seen corresponding path program 1 times [2020-10-23 20:09:14,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:14,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936014683] [2020-10-23 20:09:14,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:14,045 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,474 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:14,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 20:09:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:09:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:09:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:09:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-23 20:09:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 20:09:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:14,736 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 20:09:14,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936014683] [2020-10-23 20:09:14,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:14,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:09:14,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073315869] [2020-10-23 20:09:14,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:09:14,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:14,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:09:14,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:09:14,739 INFO L87 Difference]: Start difference. First operand 324 states and 348 transitions. Second operand 14 states. [2020-10-23 20:09:15,441 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:09:15,931 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:16,315 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:09:16,713 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:17,097 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:17,465 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:18,327 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:19,634 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:20,031 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:20,440 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:20,835 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:09:21,212 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:21,577 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:21,965 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:09:22,377 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:22,812 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:09:23,227 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:09:24,406 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:09:24,778 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:25,221 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:26,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:26,229 INFO L93 Difference]: Finished difference Result 933 states and 1113 transitions. [2020-10-23 20:09:26,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:09:26,230 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 190 [2020-10-23 20:09:26,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:26,237 INFO L225 Difference]: With dead ends: 933 [2020-10-23 20:09:26,237 INFO L226 Difference]: Without dead ends: 724 [2020-10-23 20:09:26,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:09:26,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2020-10-23 20:09:26,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 627. [2020-10-23 20:09:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2020-10-23 20:09:26,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 695 transitions. [2020-10-23 20:09:26,514 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 695 transitions. Word has length 190 [2020-10-23 20:09:26,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:26,514 INFO L481 AbstractCegarLoop]: Abstraction has 627 states and 695 transitions. [2020-10-23 20:09:26,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:09:26,515 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 695 transitions. [2020-10-23 20:09:26,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-23 20:09:26,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:26,520 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:26,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:09:26,521 INFO L429 AbstractCegarLoop]: === Iteration 7 === [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 20:09:26,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:26,522 INFO L82 PathProgramCache]: Analyzing trace with hash 120918056, now seen corresponding path program 1 times [2020-10-23 20:09:26,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:26,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241456336] [2020-10-23 20:09:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:26,712 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 20:09:26,714 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:09:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,052 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:09:27,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:09:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:09:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:09:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:09:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:09:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:09:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:09:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:09:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:09:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:09:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-23 20:09:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:09:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 20:09:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-23 20:09:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-23 20:09:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:09:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-23 20:09:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-23 20:09:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:09:27,349 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 20:09:27,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241456336] [2020-10-23 20:09:27,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:09:27,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 20:09:27,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406917425] [2020-10-23 20:09:27,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 20:09:27,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:09:27,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 20:09:27,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:09:27,352 INFO L87 Difference]: Start difference. First operand 627 states and 695 transitions. Second operand 11 states. [2020-10-23 20:09:28,813 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:09:29,185 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:09:29,590 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:09:29,958 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:30,312 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:09:30,666 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:09:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:09:31,692 INFO L93 Difference]: Finished difference Result 1120 states and 1284 transitions. [2020-10-23 20:09:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:09:31,693 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 243 [2020-10-23 20:09:31,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:09:31,699 INFO L225 Difference]: With dead ends: 1120 [2020-10-23 20:09:31,700 INFO L226 Difference]: Without dead ends: 608 [2020-10-23 20:09:31,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:09:31,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-10-23 20:09:31,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 546. [2020-10-23 20:09:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-10-23 20:09:31,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 600 transitions. [2020-10-23 20:09:31,949 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 600 transitions. Word has length 243 [2020-10-23 20:09:31,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:09:31,950 INFO L481 AbstractCegarLoop]: Abstraction has 546 states and 600 transitions. [2020-10-23 20:09:31,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 20:09:31,950 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 600 transitions. [2020-10-23 20:09:31,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-23 20:09:31,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:09:31,954 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:31,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:09:31,955 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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 20:09:31,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:09:31,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1296143291, now seen corresponding path program 1 times [2020-10-23 20:09:31,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:09:31,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231311186] [2020-10-23 20:09:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:09:32,203 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-10-23 20:09:32,341 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-23 20:09:32,591 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-10-23 20:09:32,960 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-10-23 20:09:33,069 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-23 20:09:33,344 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2020-10-23 20:09:33,705 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2020-10-23 20:09:34,072 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2020-10-23 20:09:34,811 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-10-23 20:09:35,370 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-10-23 20:09:35,883 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-10-23 20:09:36,376 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-10-23 20:09:36,883 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2020-10-23 20:09:37,432 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2020-10-23 20:09:37,939 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2020-10-23 20:09:38,477 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2020-10-23 20:09:38,481 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:38,999 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 146 [2020-10-23 20:09:39,514 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2020-10-23 20:09:40,040 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 146 [2020-10-23 20:09:40,588 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2020-10-23 20:09:41,140 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 146 [2020-10-23 20:09:41,653 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2020-10-23 20:09:42,166 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2020-10-23 20:09:42,671 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 146 [2020-10-23 20:09:42,673 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:43,192 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-10-23 20:09:43,707 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2020-10-23 20:09:44,219 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-10-23 20:09:44,739 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-10-23 20:09:45,275 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2020-10-23 20:09:45,790 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-10-23 20:09:46,291 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2020-10-23 20:09:46,797 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2020-10-23 20:09:46,800 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:47,328 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-10-23 20:09:47,869 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-10-23 20:09:48,408 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-10-23 20:09:48,910 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-10-23 20:09:49,437 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-10-23 20:09:49,996 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-10-23 20:09:50,555 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-10-23 20:09:51,095 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-10-23 20:09:51,098 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:09:51,098 INFO L120 Accelerator]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2020-10-23 20:09:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:09:51,376 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:09:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:09:51,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:09:51,837 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:09:51,838 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:09:51,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 20:09:51,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:09:51 BoogieIcfgContainer [2020-10-23 20:09:51,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:09:51,878 INFO L168 Benchmark]: Toolchain (without parser) took 65464.25 ms. Allocated memory was 153.1 MB in the beginning and 595.6 MB in the end (delta: 442.5 MB). Free memory was 128.7 MB in the beginning and 282.3 MB in the end (delta: -153.7 MB). Peak memory consumption was 289.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:09:51,879 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 153.1 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:09:51,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.20 ms. Allocated memory is still 153.1 MB. Free memory was 128.1 MB in the beginning and 107.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:09:51,881 INFO L168 Benchmark]: Boogie Preprocessor took 153.03 ms. Allocated memory is still 153.1 MB. Free memory was 107.4 MB in the beginning and 103.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:09:51,882 INFO L168 Benchmark]: RCFGBuilder took 1962.32 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 103.5 MB in the beginning and 162.4 MB in the end (delta: -58.9 MB). Peak memory consumption was 56.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:09:51,882 INFO L168 Benchmark]: TraceAbstraction took 62574.14 ms. Allocated memory was 188.7 MB in the beginning and 595.6 MB in the end (delta: 406.8 MB). Free memory was 162.4 MB in the beginning and 282.3 MB in the end (delta: -119.9 MB). Peak memory consumption was 287.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:09:51,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 153.1 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 759.20 ms. Allocated memory is still 153.1 MB. Free memory was 128.1 MB in the beginning and 107.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 153.03 ms. Allocated memory is still 153.1 MB. Free memory was 107.4 MB in the beginning and 103.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1962.32 ms. Allocated memory was 153.1 MB in the beginning and 188.7 MB in the end (delta: 35.7 MB). Free memory was 103.5 MB in the beginning and 162.4 MB in the end (delta: -58.9 MB). Peak memory consumption was 56.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 62574.14 ms. Allocated memory was 188.7 MB in the beginning and 595.6 MB in the end (delta: 406.8 MB). Free memory was 162.4 MB in the beginning and 282.3 MB in the end (delta: -119.9 MB). Peak memory consumption was 287.0 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L617] int waterLevel = 1; [L618] int methaneLevelCritical = 0; [L714] int pumpRunning = 0; [L715] int systemActive = 1; [L489] int retValue_acc ; [L490] int tmp ; [L494] FCALL select_helpers() [L495] FCALL select_features() [L496] CALL, EXPR valid_product() [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L496] RET, EXPR valid_product() [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L500] FCALL setup() [L501] CALL runTest() [L480] CALL test() [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 [L557] COND TRUE 1 [L559] COND TRUE splverifierCounter < 4 [L565] tmp = __VERIFIER_nondet_int() [L567] COND TRUE \read(tmp) [L569] CALL waterRise() [L635] COND TRUE waterLevel < 2 [L636] waterLevel = waterLevel + 1 [L569] RET waterRise() [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) [L600] CALL timeShift() [L722] COND FALSE !(\read(pumpRunning)) [L729] COND TRUE \read(systemActive) [L731] CALL processEnvironment() [L751] int tmp ; [L754] COND TRUE ! pumpRunning [L756] CALL, EXPR isHighWaterLevel() [L848] int retValue_acc ; [L849] int tmp ; [L850] int tmp___0 ; [L854] CALL, EXPR isHighWaterSensorDry() [L697] int retValue_acc ; [L700] COND FALSE !(waterLevel < 2) [L704] retValue_acc = 0 [L705] return (retValue_acc); [L854] RET, EXPR isHighWaterSensorDry() [L854] tmp = isHighWaterSensorDry() [L856] COND FALSE !(\read(tmp)) [L859] tmp___0 = 1 [L861] retValue_acc = tmp___0 [L862] return (retValue_acc); [L756] RET, EXPR isHighWaterLevel() [L756] tmp = isHighWaterLevel() [L758] COND TRUE \read(tmp) [L760] CALL activatePump() [L779] pumpRunning = 1 [L760] RET activatePump() [L731] RET processEnvironment() [L737] CALL __utac_acc__Specification4_spec__1() [L877] int tmp ; [L878] int tmp___0 ; [L882] CALL, EXPR getWaterLevel() [L688] int retValue_acc ; [L691] retValue_acc = waterLevel [L692] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp = getWaterLevel() [L884] COND FALSE !(tmp == 0) [L737] RET __utac_acc__Specification4_spec__1() [L600] RET timeShift() [L557] COND TRUE 1 [L559] COND TRUE splverifierCounter < 4 [L565] tmp = __VERIFIER_nondet_int() [L567] COND TRUE \read(tmp) [L569] CALL waterRise() [L635] COND TRUE waterLevel < 2 [L636] waterLevel = waterLevel + 1 [L569] RET waterRise() [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) [L600] CALL timeShift() [L722] COND TRUE \read(pumpRunning) [L724] CALL lowerWaterLevel() [L623] COND FALSE !(waterLevel > 0) [L724] RET lowerWaterLevel() [L729] COND TRUE \read(systemActive) [L731] CALL processEnvironment() [L751] int tmp ; [L754] COND FALSE !(! pumpRunning) [L769] FCALL processEnvironment__wrappee__base() [L731] RET processEnvironment() [L737] CALL __utac_acc__Specification4_spec__1() [L877] int tmp ; [L878] int tmp___0 ; [L882] CALL, EXPR getWaterLevel() [L688] int retValue_acc ; [L691] retValue_acc = waterLevel [L692] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp = getWaterLevel() [L884] COND TRUE tmp == 0 [L886] CALL, EXPR isPumpRunning() [L803] int retValue_acc ; [L806] retValue_acc = pumpRunning [L807] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___0 = isPumpRunning() [L888] COND TRUE \read(tmp___0) [L890] CALL __automaton_fail() [L871] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product33.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 619 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 62.4s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 34.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1500 SDtfs, 2281 SDslu, 3445 SDs, 0 SdLazy, 5761 SolverSat, 676 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 20.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=627occurred in iteration=6, 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, 7 MinimizatonAttempts, 381 StatesRemovedByMinimization, 7 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...