/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 21:58:45,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 21:58:45,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 21:58:45,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 21:58:45,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 21:58:45,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 21:58:45,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 21:58:45,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 21:58:45,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 21:58:45,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 21:58:45,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 21:58:45,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 21:58:45,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 21:58:45,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 21:58:45,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 21:58:45,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 21:58:45,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 21:58:45,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 21:58:45,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 21:58:45,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 21:58:45,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 21:58:45,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 21:58:45,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 21:58:45,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 21:58:45,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 21:58:45,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 21:58:45,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 21:58:45,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 21:58:45,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 21:58:45,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 21:58:45,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 21:58:45,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 21:58:45,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 21:58:45,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 21:58:45,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 21:58:45,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 21:58:45,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 21:58:45,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 21:58:45,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 21:58:45,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 21:58:45,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 21:58:45,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 21:58:45,305 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 21:58:45,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 21:58:45,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 21:58:45,307 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 21:58:45,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 21:58:45,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 21:58:45,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 21:58:45,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 21:58:45,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 21:58:45,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 21:58:45,309 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 21:58:45,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 21:58:45,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 21:58:45,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 21:58:45,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 21:58:45,310 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 21:58:45,310 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 21:58:45,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 21:58:45,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 21:58:45,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 21:58:45,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 21:58:45,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 21:58:45,312 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 21:58:45,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 21:58:45,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 21:58:45,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 21:58:45,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 21:58:45,705 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 21:58:45,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2021-02-23 21:58:45,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f927be071/9a2a620839cc408e8a9d207623217ca1/FLAGef8211064 [2021-02-23 21:58:46,550 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 21:58:46,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2021-02-23 21:58:46,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f927be071/9a2a620839cc408e8a9d207623217ca1/FLAGef8211064 [2021-02-23 21:58:46,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f927be071/9a2a620839cc408e8a9d207623217ca1 [2021-02-23 21:58:46,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 21:58:46,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 21:58:46,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 21:58:46,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 21:58:46,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 21:58:46,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:58:46" (1/1) ... [2021-02-23 21:58:46,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64aacbff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:46, skipping insertion in model container [2021-02-23 21:58:46,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:58:46" (1/1) ... [2021-02-23 21:58:46,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 21:58:46,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 21:58:47,150 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2021-02-23 21:58:47,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:58:47,198 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 21:58:47,331 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2021-02-23 21:58:47,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:58:47,395 INFO L208 MainTranslator]: Completed translation [2021-02-23 21:58:47,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:47 WrapperNode [2021-02-23 21:58:47,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 21:58:47,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 21:58:47,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 21:58:47,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 21:58:47,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:47" (1/1) ... [2021-02-23 21:58:47,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:47" (1/1) ... [2021-02-23 21:58:47,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:47" (1/1) ... [2021-02-23 21:58:47,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:47" (1/1) ... [2021-02-23 21:58:47,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:47" (1/1) ... [2021-02-23 21:58:47,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:47" (1/1) ... [2021-02-23 21:58:47,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:47" (1/1) ... [2021-02-23 21:58:47,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 21:58:47,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 21:58:47,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 21:58:47,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 21:58:47,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:47" (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 [2021-02-23 21:58:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 21:58:47,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 21:58:47,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 21:58:47,646 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 21:58:47,646 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 21:58:47,647 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 21:58:47,647 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 21:58:47,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 21:58:47,647 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 21:58:47,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 21:58:47,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 21:58:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 21:58:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 21:58:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 21:58:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 21:58:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 21:58:47,649 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 21:58:47,649 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 21:58:47,649 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 21:58:47,649 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 21:58:47,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 21:58:47,650 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 21:58:47,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 21:58:47,650 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 21:58:47,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 21:58:47,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 21:58:47,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 21:58:47,651 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 21:58:47,651 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 21:58:47,651 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 21:58:47,651 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 21:58:47,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 21:58:47,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 21:58:47,652 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 21:58:47,652 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 21:58:47,652 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 21:58:47,652 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 21:58:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 21:58:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 21:58:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 21:58:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 21:58:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 21:58:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 21:58:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 21:58:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 21:58:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 21:58:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 21:58:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 21:58:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 21:58:47,655 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 21:58:47,655 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 21:58:47,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 21:58:47,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 21:58:47,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 21:58:47,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 21:58:47,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 21:58:47,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 21:58:47,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 21:58:47,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 21:58:47,656 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 21:58:47,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 21:58:47,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 21:58:47,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 21:58:47,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 21:58:47,657 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 21:58:47,657 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 21:58:47,657 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 21:58:47,658 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 21:58:47,658 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 21:58:47,658 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 21:58:47,658 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 21:58:47,658 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 21:58:47,658 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 21:58:47,659 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 21:58:47,659 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 21:58:47,659 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 21:58:47,659 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 21:58:47,659 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 21:58:47,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 21:58:47,660 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 21:58:47,660 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 21:58:47,660 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 21:58:47,660 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 21:58:47,660 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 21:58:47,660 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 21:58:47,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 21:58:47,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 21:58:47,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 21:58:48,889 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 21:58:48,890 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 21:58:48,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:58:48 BoogieIcfgContainer [2021-02-23 21:58:48,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 21:58:48,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 21:58:48,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 21:58:48,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 21:58:48,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 09:58:46" (1/3) ... [2021-02-23 21:58:48,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430ae3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:58:48, skipping insertion in model container [2021-02-23 21:58:48,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:47" (2/3) ... [2021-02-23 21:58:48,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430ae3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:58:48, skipping insertion in model container [2021-02-23 21:58:48,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:58:48" (3/3) ... [2021-02-23 21:58:48,909 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2021-02-23 21:58:48,916 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 21:58:48,922 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 21:58:48,942 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 21:58:48,978 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 21:58:48,978 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 21:58:48,978 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 21:58:48,979 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 21:58:48,979 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 21:58:48,979 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 21:58:48,979 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 21:58:48,980 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 21:58:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2021-02-23 21:58:49,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 21:58:49,045 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:49,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:58:49,047 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:49,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1280139405, now seen corresponding path program 1 times [2021-02-23 21:58:49,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:49,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446604024] [2021-02-23 21:58:49,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:49,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:49,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:49,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:49,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:49,856 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:58:49,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:58:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:49,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:49,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:49,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:58:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:49,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:49,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:49,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:58:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:49,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:49,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:49,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:58:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:49,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:49,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:49,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:58:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:49,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:49,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:49,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 21:58:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:49,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:49,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:49,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:58:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:49,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:49,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:49,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 21:58:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:49,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:49,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:50,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:58:50,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446604024] [2021-02-23 21:58:50,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:58:50,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 21:58:50,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659575317] [2021-02-23 21:58:50,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 21:58:50,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:58:50,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 21:58:50,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:58:50,034 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 3 states. [2021-02-23 21:58:51,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:58:51,461 INFO L93 Difference]: Finished difference Result 400 states and 477 transitions. [2021-02-23 21:58:51,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 21:58:51,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 21:58:51,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:58:51,479 INFO L225 Difference]: With dead ends: 400 [2021-02-23 21:58:51,479 INFO L226 Difference]: Without dead ends: 259 [2021-02-23 21:58:51,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:58:51,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-02-23 21:58:51,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 219. [2021-02-23 21:58:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-23 21:58:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 234 transitions. [2021-02-23 21:58:51,639 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 234 transitions. Word has length 158 [2021-02-23 21:58:51,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:58:51,640 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 234 transitions. [2021-02-23 21:58:51,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 21:58:51,640 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 234 transitions. [2021-02-23 21:58:51,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 21:58:51,645 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:51,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:58:51,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 21:58:51,646 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:51,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:51,646 INFO L82 PathProgramCache]: Analyzing trace with hash -987385386, now seen corresponding path program 1 times [2021-02-23 21:58:51,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:51,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292062391] [2021-02-23 21:58:51,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:51,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:51,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:51,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:51,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:51,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:51,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:52,148 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:58:52,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:58:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:52,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:52,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:52,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:58:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:52,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:52,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:52,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:58:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:52,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:52,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:52,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:58:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:52,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:52,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:52,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:58:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:52,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:52,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:52,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 21:58:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:52,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:52,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:52,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 21:58:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:52,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:52,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:52,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 21:58:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:52,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:52,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:52,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:58:52,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292062391] [2021-02-23 21:58:52,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:58:52,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 21:58:52,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289215989] [2021-02-23 21:58:52,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 21:58:52,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:58:52,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 21:58:52,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 21:58:52,257 INFO L87 Difference]: Start difference. First operand 219 states and 234 transitions. Second operand 4 states. [2021-02-23 21:58:52,988 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:58:53,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:58:53,698 INFO L93 Difference]: Finished difference Result 303 states and 337 transitions. [2021-02-23 21:58:53,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 21:58:53,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 21:58:53,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:58:53,703 INFO L225 Difference]: With dead ends: 303 [2021-02-23 21:58:53,703 INFO L226 Difference]: Without dead ends: 242 [2021-02-23 21:58:53,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 21:58:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-02-23 21:58:53,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 209. [2021-02-23 21:58:53,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2021-02-23 21:58:53,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 221 transitions. [2021-02-23 21:58:53,797 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 221 transitions. Word has length 159 [2021-02-23 21:58:53,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:58:53,800 INFO L480 AbstractCegarLoop]: Abstraction has 209 states and 221 transitions. [2021-02-23 21:58:53,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 21:58:53,800 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 221 transitions. [2021-02-23 21:58:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 21:58:53,811 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:53,812 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] [2021-02-23 21:58:53,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 21:58:53,813 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:53,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:53,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1527823238, now seen corresponding path program 1 times [2021-02-23 21:58:53,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:53,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913058534] [2021-02-23 21:58:53,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:53,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:53,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:53,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:53,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:53,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:53,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:53,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:53,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:53,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:53,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:58:53,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:53,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:54,260 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:58:54,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:58:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:54,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:54,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:58:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:54,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:54,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:58:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:54,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:54,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:58:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:54,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:54,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:58:54,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:58:54,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:58:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:54,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:54,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 21:58:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:54,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:54,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 21:58:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:54,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:54,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 21:58:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:54,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:54,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 21:58:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:54,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:54,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:58:54,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913058534] [2021-02-23 21:58:54,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:58:54,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 21:58:54,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721271707] [2021-02-23 21:58:54,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 21:58:54,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:58:54,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 21:58:54,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 21:58:54,454 INFO L87 Difference]: Start difference. First operand 209 states and 221 transitions. Second operand 10 states. [2021-02-23 21:58:55,161 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:58:55,608 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:58:56,003 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 21:58:56,371 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:58:56,704 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:58:57,029 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:58:58,041 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:58:59,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:58:59,749 INFO L93 Difference]: Finished difference Result 555 states and 643 transitions. [2021-02-23 21:58:59,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 21:58:59,749 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 21:58:59,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:58:59,754 INFO L225 Difference]: With dead ends: 555 [2021-02-23 21:58:59,755 INFO L226 Difference]: Without dead ends: 461 [2021-02-23 21:58:59,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-23 21:58:59,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-02-23 21:58:59,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 362. [2021-02-23 21:58:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2021-02-23 21:58:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 397 transitions. [2021-02-23 21:58:59,916 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 397 transitions. Word has length 172 [2021-02-23 21:58:59,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:58:59,916 INFO L480 AbstractCegarLoop]: Abstraction has 362 states and 397 transitions. [2021-02-23 21:58:59,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 21:58:59,917 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 397 transitions. [2021-02-23 21:58:59,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-23 21:58:59,920 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:59,920 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] [2021-02-23 21:58:59,920 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 21:58:59,920 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:59,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:59,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1067126703, now seen corresponding path program 1 times [2021-02-23 21:58:59,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:59,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708168038] [2021-02-23 21:58:59,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:59,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:00,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:00,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:00,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:00,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:00,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:00,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:00,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,304 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:00,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:00,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:59:00,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:00,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:00,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:00,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:00,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 21:59:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:00,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:59:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:00,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-23 21:59:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:00,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-23 21:59:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:00,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:00,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:00,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-23 21:59:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:00,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:00,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:59:00,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708168038] [2021-02-23 21:59:00,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:00,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 21:59:00,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465194449] [2021-02-23 21:59:00,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 21:59:00,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:00,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 21:59:00,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 21:59:00,500 INFO L87 Difference]: Start difference. First operand 362 states and 397 transitions. Second operand 9 states. [2021-02-23 21:59:01,073 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:02,581 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:02,996 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:03,435 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:03,854 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:04,194 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:04,549 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:04,900 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:05,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:05,555 INFO L93 Difference]: Finished difference Result 914 states and 1082 transitions. [2021-02-23 21:59:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 21:59:05,555 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2021-02-23 21:59:05,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:05,562 INFO L225 Difference]: With dead ends: 914 [2021-02-23 21:59:05,562 INFO L226 Difference]: Without dead ends: 667 [2021-02-23 21:59:05,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 21:59:05,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-02-23 21:59:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 584. [2021-02-23 21:59:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2021-02-23 21:59:05,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 660 transitions. [2021-02-23 21:59:05,818 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 660 transitions. Word has length 175 [2021-02-23 21:59:05,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:05,819 INFO L480 AbstractCegarLoop]: Abstraction has 584 states and 660 transitions. [2021-02-23 21:59:05,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 21:59:05,819 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 660 transitions. [2021-02-23 21:59:05,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-23 21:59:05,823 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:05,823 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] [2021-02-23 21:59:05,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 21:59:05,824 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:05,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:05,825 INFO L82 PathProgramCache]: Analyzing trace with hash -2145354115, now seen corresponding path program 1 times [2021-02-23 21:59:05,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:05,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002545727] [2021-02-23 21:59:05,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:59:05,901 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:59:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:59:05,971 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:59:06,146 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 21:59:06,146 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 21:59:06,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 21:59:06,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 09:59:06 BoogieIcfgContainer [2021-02-23 21:59:06,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 21:59:06,381 INFO L168 Benchmark]: Toolchain (without parser) took 19544.25 ms. Allocated memory was 154.1 MB in the beginning and 483.4 MB in the end (delta: 329.3 MB). Free memory was 128.5 MB in the beginning and 176.9 MB in the end (delta: -48.4 MB). Peak memory consumption was 281.7 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:06,381 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 154.1 MB. Free memory was 127.7 MB in the beginning and 127.3 MB in the end (delta: 430.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 21:59:06,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.54 ms. Allocated memory is still 154.1 MB. Free memory was 127.5 MB in the beginning and 107.7 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:06,382 INFO L168 Benchmark]: Boogie Preprocessor took 129.75 ms. Allocated memory is still 154.1 MB. Free memory was 107.7 MB in the beginning and 103.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:06,383 INFO L168 Benchmark]: RCFGBuilder took 1367.17 ms. Allocated memory was 154.1 MB in the beginning and 195.0 MB in the end (delta: 40.9 MB). Free memory was 103.8 MB in the beginning and 145.7 MB in the end (delta: -41.9 MB). Peak memory consumption was 43.4 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:06,384 INFO L168 Benchmark]: TraceAbstraction took 17479.15 ms. Allocated memory was 195.0 MB in the beginning and 483.4 MB in the end (delta: 288.4 MB). Free memory was 145.2 MB in the beginning and 176.9 MB in the end (delta: -31.7 MB). Peak memory consumption was 257.2 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:06,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 154.1 MB. Free memory was 127.7 MB in the beginning and 127.3 MB in the end (delta: 430.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 547.54 ms. Allocated memory is still 154.1 MB. Free memory was 127.5 MB in the beginning and 107.7 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 129.75 ms. Allocated memory is still 154.1 MB. Free memory was 107.7 MB in the beginning and 103.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1367.17 ms. Allocated memory was 154.1 MB in the beginning and 195.0 MB in the end (delta: 40.9 MB). Free memory was 103.8 MB in the beginning and 145.7 MB in the end (delta: -41.9 MB). Peak memory consumption was 43.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17479.15 ms. Allocated memory was 195.0 MB in the beginning and 483.4 MB in the end (delta: 288.4 MB). Free memory was 145.2 MB in the beginning and 176.9 MB in the end (delta: -31.7 MB). Peak memory consumption was 257.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 635]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L48] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=145, cleanupTimeShifts=180, head={182:170}, methaneLevelCritical=148, pumpRunning=137, systemActive=136, waterLevel=1] [L49] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=145, cleanupTimeShifts=180, head={182:170}, methaneLevelCritical=0, pumpRunning=137, systemActive=136, waterLevel=1] [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=145, cleanupTimeShifts=180, head={0:0}, methaneLevelCritical=0, pumpRunning=137, systemActive=136, waterLevel=1] [L532] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=180, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=137, systemActive=136, waterLevel=1] [L679] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=136, waterLevel=1] [L680] int systemActive = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=148, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L609] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L613] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L614] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L526] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L527] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L615] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L615] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L617] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L619] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L620] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L602] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L811] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L812] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L813] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L814] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L819] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L821] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L827] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L829] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L831] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L831] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L837] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L839] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L847] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L849] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L851] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L804] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L851] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L866] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L686] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L701] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L642] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L644] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L648] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L87] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L90] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L91] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L648] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L648] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L650] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L654] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L119] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L122] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L123] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L654] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L654] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L656] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L658] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L741] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L744] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L745] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L658] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L658] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L660] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L664] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L635] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 597 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 820 SDtfs, 1185 SDslu, 1355 SDs, 0 SdLazy, 2290 SolverSat, 392 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=584occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 255 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 844 NumberOfCodeBlocks, 844 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 271357 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...