/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 16:24:29,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 16:24:29,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 16:24:29,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 16:24:29,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 16:24:29,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 16:24:29,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 16:24:29,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 16:24:29,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 16:24:29,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 16:24:29,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 16:24:29,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 16:24:29,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 16:24:29,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 16:24:29,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 16:24:29,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 16:24:29,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 16:24:29,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 16:24:29,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 16:24:29,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 16:24:29,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 16:24:29,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 16:24:29,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 16:24:29,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 16:24:29,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 16:24:29,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 16:24:29,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 16:24:29,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 16:24:29,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 16:24:29,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 16:24:29,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 16:24:29,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 16:24:29,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 16:24:29,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 16:24:29,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 16:24:29,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 16:24:29,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 16:24:29,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 16:24:29,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 16:24:29,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 16:24:29,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 16:24:29,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 16:24:29,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 16:24:29,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 16:24:29,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 16:24:29,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 16:24:29,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 16:24:29,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 16:24:29,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 16:24:29,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 16:24:29,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 16:24:29,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 16:24:29,447 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 16:24:29,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 16:24:29,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 16:24:29,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 16:24:29,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 16:24:29,448 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 16:24:29,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 16:24:29,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 16:24:29,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 16:24:29,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 16:24:29,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 16:24:29,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 16:24:29,451 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-07-17 16:24:29,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 16:24:29,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 16:24:29,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 16:24:29,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 16:24:29,761 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 16:24:29,762 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-07-17 16:24:29,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bdbf688c/a3265ad413e74d5ab35a37a91e0e21c5/FLAG03efe8e74 [2020-07-17 16:24:30,397 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 16:24:30,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-07-17 16:24:30,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bdbf688c/a3265ad413e74d5ab35a37a91e0e21c5/FLAG03efe8e74 [2020-07-17 16:24:30,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bdbf688c/a3265ad413e74d5ab35a37a91e0e21c5 [2020-07-17 16:24:30,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 16:24:30,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 16:24:30,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 16:24:30,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 16:24:30,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 16:24:30,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:24:30" (1/1) ... [2020-07-17 16:24:30,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d70ad6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:30, skipping insertion in model container [2020-07-17 16:24:30,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:24:30" (1/1) ... [2020-07-17 16:24:30,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 16:24:30,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 16:24:31,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:24:31,213 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 16:24:31,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:24:31,323 INFO L208 MainTranslator]: Completed translation [2020-07-17 16:24:31,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:31 WrapperNode [2020-07-17 16:24:31,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 16:24:31,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 16:24:31,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 16:24:31,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 16:24:31,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:31" (1/1) ... [2020-07-17 16:24:31,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:31" (1/1) ... [2020-07-17 16:24:31,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:31" (1/1) ... [2020-07-17 16:24:31,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:31" (1/1) ... [2020-07-17 16:24:31,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:31" (1/1) ... [2020-07-17 16:24:31,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:31" (1/1) ... [2020-07-17 16:24:31,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:31" (1/1) ... [2020-07-17 16:24:31,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 16:24:31,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 16:24:31,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 16:24:31,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 16:24:31,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 16:24:31,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 16:24:31,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 16:24:31,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 16:24:31,507 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 16:24:31,507 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 16:24:31,508 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 16:24:31,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 16:24:31,508 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 16:24:31,508 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 16:24:31,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 16:24:31,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 16:24:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-17 16:24:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 16:24:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 16:24:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 16:24:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 16:24:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 16:24:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 16:24:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 16:24:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 16:24:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 16:24:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 16:24:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 16:24:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 16:24:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 16:24:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 16:24:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 16:24:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 16:24:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 16:24:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 16:24:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 16:24:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 16:24:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 16:24:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 16:24:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 16:24:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 16:24:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 16:24:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 16:24:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 16:24:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 16:24:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 16:24:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 16:24:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 16:24:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 16:24:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 16:24:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 16:24:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 16:24:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 16:24:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 16:24:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 16:24:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 16:24:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-17 16:24:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 16:24:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 16:24:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 16:24:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 16:24:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 16:24:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 16:24:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 16:24:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 16:24:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 16:24:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 16:24:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 16:24:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 16:24:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 16:24:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 16:24:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 16:24:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 16:24:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 16:24:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 16:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 16:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 16:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 16:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 16:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 16:24:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 16:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 16:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 16:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 16:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 16:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 16:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 16:24:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 16:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 16:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 16:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 16:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 16:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 16:24:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 16:24:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 16:24:32,833 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 16:24:32,837 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 16:24:32,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:24:32 BoogieIcfgContainer [2020-07-17 16:24:32,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 16:24:32,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 16:24:32,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 16:24:32,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 16:24:32,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:24:30" (1/3) ... [2020-07-17 16:24:32,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3397f22d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:24:32, skipping insertion in model container [2020-07-17 16:24:32,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:24:31" (2/3) ... [2020-07-17 16:24:32,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3397f22d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:24:32, skipping insertion in model container [2020-07-17 16:24:32,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:24:32" (3/3) ... [2020-07-17 16:24:32,855 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-07-17 16:24:32,866 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 16:24:32,876 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 16:24:32,890 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 16:24:32,911 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 16:24:32,911 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 16:24:32,911 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 16:24:32,911 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 16:24:32,912 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 16:24:32,912 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 16:24:32,912 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 16:24:32,912 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 16:24:32,933 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-07-17 16:24:32,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-17 16:24:32,953 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:32,955 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] [2020-07-17 16:24:32,955 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:32,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:32,962 INFO L82 PathProgramCache]: Analyzing trace with hash 750514354, now seen corresponding path program 1 times [2020-07-17 16:24:32,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:32,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906022228] [2020-07-17 16:24:32,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:33,685 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:33,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906022228] [2020-07-17 16:24:33,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:33,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 16:24:33,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108174854] [2020-07-17 16:24:33,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 16:24:33,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:33,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 16:24:33,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 16:24:33,910 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2020-07-17 16:24:35,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:24:35,195 INFO L93 Difference]: Finished difference Result 439 states and 524 transitions. [2020-07-17 16:24:35,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 16:24:35,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-17 16:24:35,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:24:35,228 INFO L225 Difference]: With dead ends: 439 [2020-07-17 16:24:35,229 INFO L226 Difference]: Without dead ends: 277 [2020-07-17 16:24:35,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 16:24:35,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-07-17 16:24:35,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2020-07-17 16:24:35,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-07-17 16:24:35,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-07-17 16:24:35,363 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 142 [2020-07-17 16:24:35,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:24:35,364 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-07-17 16:24:35,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 16:24:35,365 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-07-17 16:24:35,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-17 16:24:35,369 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:35,369 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] [2020-07-17 16:24:35,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 16:24:35,370 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:35,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:35,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1453121021, now seen corresponding path program 1 times [2020-07-17 16:24:35,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:35,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682158240] [2020-07-17 16:24:35,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:35,724 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:35,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682158240] [2020-07-17 16:24:35,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:35,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 16:24:35,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168657769] [2020-07-17 16:24:35,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 16:24:35,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:35,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 16:24:35,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 16:24:35,816 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 4 states. [2020-07-17 16:24:36,488 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:24:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:24:37,279 INFO L93 Difference]: Finished difference Result 347 states and 389 transitions. [2020-07-17 16:24:37,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 16:24:37,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-07-17 16:24:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:24:37,283 INFO L225 Difference]: With dead ends: 347 [2020-07-17 16:24:37,284 INFO L226 Difference]: Without dead ends: 260 [2020-07-17 16:24:37,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 16:24:37,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-07-17 16:24:37,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 226. [2020-07-17 16:24:37,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-17 16:24:37,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-07-17 16:24:37,350 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 143 [2020-07-17 16:24:37,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:24:37,351 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-07-17 16:24:37,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 16:24:37,351 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-07-17 16:24:37,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-17 16:24:37,353 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:37,354 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] [2020-07-17 16:24:37,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 16:24:37,354 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:37,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:37,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1038765417, now seen corresponding path program 1 times [2020-07-17 16:24:37,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:37,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483201194] [2020-07-17 16:24:37,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:37,801 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:38,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:38,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483201194] [2020-07-17 16:24:38,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:38,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:24:38,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856307156] [2020-07-17 16:24:38,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:24:38,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:38,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:24:38,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:24:38,006 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 9 states. [2020-07-17 16:24:38,443 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:24:38,793 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:24:39,060 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-17 16:24:39,302 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:39,548 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:24:39,784 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:40,784 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:24:42,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:24:42,402 INFO L93 Difference]: Finished difference Result 585 states and 671 transitions. [2020-07-17 16:24:42,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 16:24:42,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-07-17 16:24:42,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:24:42,410 INFO L225 Difference]: With dead ends: 585 [2020-07-17 16:24:42,411 INFO L226 Difference]: Without dead ends: 469 [2020-07-17 16:24:42,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-17 16:24:42,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-17 16:24:42,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 394. [2020-07-17 16:24:42,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-07-17 16:24:42,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 436 transitions. [2020-07-17 16:24:42,588 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 436 transitions. Word has length 152 [2020-07-17 16:24:42,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:24:42,589 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 436 transitions. [2020-07-17 16:24:42,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:24:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 436 transitions. [2020-07-17 16:24:42,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-17 16:24:42,592 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:42,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:24:42,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 16:24:42,593 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:42,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:42,594 INFO L82 PathProgramCache]: Analyzing trace with hash -66041728, now seen corresponding path program 1 times [2020-07-17 16:24:42,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:42,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379359094] [2020-07-17 16:24:42,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,934 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:43,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:43,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379359094] [2020-07-17 16:24:43,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:43,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 16:24:43,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435939809] [2020-07-17 16:24:43,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 16:24:43,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:43,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 16:24:43,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-17 16:24:43,046 INFO L87 Difference]: Start difference. First operand 394 states and 436 transitions. Second operand 6 states. [2020-07-17 16:24:43,511 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:24:45,367 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:24:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:24:45,878 INFO L93 Difference]: Finished difference Result 984 states and 1157 transitions. [2020-07-17 16:24:45,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 16:24:45,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-07-17 16:24:45,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:24:45,890 INFO L225 Difference]: With dead ends: 984 [2020-07-17 16:24:45,890 INFO L226 Difference]: Without dead ends: 700 [2020-07-17 16:24:45,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-17 16:24:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-07-17 16:24:46,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 584. [2020-07-17 16:24:46,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-17 16:24:46,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 646 transitions. [2020-07-17 16:24:46,189 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 646 transitions. Word has length 160 [2020-07-17 16:24:46,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:24:46,189 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 646 transitions. [2020-07-17 16:24:46,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 16:24:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 646 transitions. [2020-07-17 16:24:46,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-17 16:24:46,192 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:46,192 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] [2020-07-17 16:24:46,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 16:24:46,192 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:46,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:46,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1164437593, now seen corresponding path program 1 times [2020-07-17 16:24:46,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:46,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517348332] [2020-07-17 16:24:46,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,505 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:46,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517348332] [2020-07-17 16:24:46,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:46,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:24:46,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84585105] [2020-07-17 16:24:46,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:24:46,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:46,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:24:46,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:24:46,706 INFO L87 Difference]: Start difference. First operand 584 states and 646 transitions. Second operand 9 states. [2020-07-17 16:24:47,183 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:24:48,208 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:48,441 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:24:48,703 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:48,974 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:24:49,191 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:24:49,414 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:49,663 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:50,055 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:24:51,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:24:51,383 INFO L93 Difference]: Finished difference Result 1577 states and 1836 transitions. [2020-07-17 16:24:51,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 16:24:51,383 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-07-17 16:24:51,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:24:51,393 INFO L225 Difference]: With dead ends: 1577 [2020-07-17 16:24:51,393 INFO L226 Difference]: Without dead ends: 1103 [2020-07-17 16:24:51,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-07-17 16:24:51,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-07-17 16:24:51,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 975. [2020-07-17 16:24:51,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 975 states. [2020-07-17 16:24:51,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1086 transitions. [2020-07-17 16:24:51,722 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1086 transitions. Word has length 161 [2020-07-17 16:24:51,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:24:51,722 INFO L479 AbstractCegarLoop]: Abstraction has 975 states and 1086 transitions. [2020-07-17 16:24:51,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:24:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1086 transitions. [2020-07-17 16:24:51,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-17 16:24:51,725 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:51,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:24:51,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 16:24:51,726 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:51,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:51,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1435242309, now seen corresponding path program 1 times [2020-07-17 16:24:51,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:51,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204093745] [2020-07-17 16:24:51,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:51,998 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:52,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:52,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204093745] [2020-07-17 16:24:52,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:52,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:24:52,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846169660] [2020-07-17 16:24:52,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:24:52,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:52,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:24:52,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:24:52,127 INFO L87 Difference]: Start difference. First operand 975 states and 1086 transitions. Second operand 10 states. [2020-07-17 16:24:52,581 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:24:53,882 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:54,140 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:24:54,415 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:54,664 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:24:54,891 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:55,404 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:24:55,646 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:55,970 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:24:56,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:24:56,777 INFO L93 Difference]: Finished difference Result 1235 states and 1449 transitions. [2020-07-17 16:24:56,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-17 16:24:56,777 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-07-17 16:24:56,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:24:56,784 INFO L225 Difference]: With dead ends: 1235 [2020-07-17 16:24:56,785 INFO L226 Difference]: Without dead ends: 1232 [2020-07-17 16:24:56,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-07-17 16:24:56,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2020-07-17 16:24:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 975. [2020-07-17 16:24:57,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 975 states. [2020-07-17 16:24:57,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1083 transitions. [2020-07-17 16:24:57,079 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1083 transitions. Word has length 166 [2020-07-17 16:24:57,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:24:57,080 INFO L479 AbstractCegarLoop]: Abstraction has 975 states and 1083 transitions. [2020-07-17 16:24:57,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:24:57,080 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1083 transitions. [2020-07-17 16:24:57,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-17 16:24:57,084 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:24:57,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:24:57,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 16:24:57,085 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:24:57,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:24:57,085 INFO L82 PathProgramCache]: Analyzing trace with hash 350443365, now seen corresponding path program 1 times [2020-07-17 16:24:57,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:24:57,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274005] [2020-07-17 16:24:57,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:24:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,337 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:24:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:24:57,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:24:57,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274005] [2020-07-17 16:24:57,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:24:57,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:24:57,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240788134] [2020-07-17 16:24:57,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:24:57,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:24:57,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:24:57,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:24:57,496 INFO L87 Difference]: Start difference. First operand 975 states and 1083 transitions. Second operand 10 states. [2020-07-17 16:24:58,804 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:24:59,047 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:24:59,345 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-17 16:24:59,600 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:24:59,874 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:00,120 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:01,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:01,133 INFO L93 Difference]: Finished difference Result 2241 states and 2651 transitions. [2020-07-17 16:25:01,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 16:25:01,134 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-07-17 16:25:01,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:01,151 INFO L225 Difference]: With dead ends: 2241 [2020-07-17 16:25:01,151 INFO L226 Difference]: Without dead ends: 1376 [2020-07-17 16:25:01,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-07-17 16:25:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2020-07-17 16:25:01,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1007. [2020-07-17 16:25:01,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1007 states. [2020-07-17 16:25:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1115 transitions. [2020-07-17 16:25:01,507 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1115 transitions. Word has length 190 [2020-07-17 16:25:01,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:01,508 INFO L479 AbstractCegarLoop]: Abstraction has 1007 states and 1115 transitions. [2020-07-17 16:25:01,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:25:01,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1115 transitions. [2020-07-17 16:25:01,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-17 16:25:01,517 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:01,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:01,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 16:25:01,518 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:01,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:01,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1071797499, now seen corresponding path program 1 times [2020-07-17 16:25:01,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:01,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206411595] [2020-07-17 16:25:01,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,762 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:01,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206411595] [2020-07-17 16:25:01,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:01,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-17 16:25:01,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544288939] [2020-07-17 16:25:01,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 16:25:01,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:01,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 16:25:01,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-07-17 16:25:01,947 INFO L87 Difference]: Start difference. First operand 1007 states and 1115 transitions. Second operand 13 states. [2020-07-17 16:25:02,467 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:25:02,714 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-17 16:25:02,950 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:03,193 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:03,482 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:04,269 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:04,524 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:04,792 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:05,055 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:25:05,297 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:25:06,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:06,736 INFO L93 Difference]: Finished difference Result 2317 states and 2760 transitions. [2020-07-17 16:25:06,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 16:25:06,741 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 190 [2020-07-17 16:25:06,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:06,749 INFO L225 Difference]: With dead ends: 2317 [2020-07-17 16:25:06,749 INFO L226 Difference]: Without dead ends: 1420 [2020-07-17 16:25:06,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-07-17 16:25:06,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2020-07-17 16:25:07,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1031. [2020-07-17 16:25:07,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-07-17 16:25:07,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1139 transitions. [2020-07-17 16:25:07,192 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1139 transitions. Word has length 190 [2020-07-17 16:25:07,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:07,192 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1139 transitions. [2020-07-17 16:25:07,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 16:25:07,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1139 transitions. [2020-07-17 16:25:07,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-17 16:25:07,197 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:07,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:07,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 16:25:07,198 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:07,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:07,198 INFO L82 PathProgramCache]: Analyzing trace with hash -863448728, now seen corresponding path program 1 times [2020-07-17 16:25:07,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:07,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726161799] [2020-07-17 16:25:07,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,467 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:25:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:25:07,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 16:25:07,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726161799] [2020-07-17 16:25:07,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:25:07,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 16:25:07,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981994175] [2020-07-17 16:25:07,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 16:25:07,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:25:07,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 16:25:07,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 16:25:07,614 INFO L87 Difference]: Start difference. First operand 1031 states and 1139 transitions. Second operand 7 states. [2020-07-17 16:25:08,066 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:08,644 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:25:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:25:11,277 INFO L93 Difference]: Finished difference Result 3474 states and 4215 transitions. [2020-07-17 16:25:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 16:25:11,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-07-17 16:25:11,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:25:11,291 INFO L225 Difference]: With dead ends: 3474 [2020-07-17 16:25:11,292 INFO L226 Difference]: Without dead ends: 2553 [2020-07-17 16:25:11,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-07-17 16:25:11,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2020-07-17 16:25:11,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2075. [2020-07-17 16:25:11,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2075 states. [2020-07-17 16:25:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2355 transitions. [2020-07-17 16:25:11,995 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2355 transitions. Word has length 190 [2020-07-17 16:25:11,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:25:11,996 INFO L479 AbstractCegarLoop]: Abstraction has 2075 states and 2355 transitions. [2020-07-17 16:25:11,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 16:25:11,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2355 transitions. [2020-07-17 16:25:11,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-17 16:25:12,000 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:25:12,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 16:25:12,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 16:25:12,000 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:25:12,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:25:12,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1653898682, now seen corresponding path program 1 times [2020-07-17 16:25:12,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:25:12,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636035635] [2020-07-17 16:25:12,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:25:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:25:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:25:12,450 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 16:25:12,450 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 16:25:12,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 16:25:12,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 04:25:12 BoogieIcfgContainer [2020-07-17 16:25:12,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 16:25:12,654 INFO L168 Benchmark]: Toolchain (without parser) took 41968.34 ms. Allocated memory was 137.9 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 101.1 MB in the beginning and 933.6 MB in the end (delta: -832.6 MB). Peak memory consumption was 978.3 MB. Max. memory is 7.1 GB. [2020-07-17 16:25:12,655 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 137.9 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 16:25:12,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.05 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.7 MB in the beginning and 172.1 MB in the end (delta: -71.4 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2020-07-17 16:25:12,656 INFO L168 Benchmark]: Boogie Preprocessor took 106.17 ms. Allocated memory is still 201.9 MB. Free memory was 172.1 MB in the beginning and 168.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-17 16:25:12,658 INFO L168 Benchmark]: RCFGBuilder took 1416.97 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 168.0 MB in the beginning and 179.0 MB in the end (delta: -11.1 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2020-07-17 16:25:12,661 INFO L168 Benchmark]: TraceAbstraction took 39804.94 ms. Allocated memory was 234.4 MB in the beginning and 1.1 GB in the end (delta: 909.1 MB). Free memory was 179.0 MB in the beginning and 933.6 MB in the end (delta: -754.6 MB). Peak memory consumption was 959.8 MB. Max. memory is 7.1 GB. [2020-07-17 16:25:12,670 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 137.9 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 634.05 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.7 MB in the beginning and 172.1 MB in the end (delta: -71.4 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.17 ms. Allocated memory is still 201.9 MB. Free memory was 172.1 MB in the beginning and 168.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1416.97 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 168.0 MB in the beginning and 179.0 MB in the end (delta: -11.1 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39804.94 ms. Allocated memory was 234.4 MB in the beginning and 1.1 GB in the end (delta: 909.1 MB). Free memory was 179.0 MB in the beginning and 933.6 MB in the end (delta: -754.6 MB). Peak memory consumption was 959.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 145]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=173, \old(head)=176, \old(head)=167, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=173, head={176:167}, methaneLevelCritical=142, pumpRunning=131, systemActive=130, waterLevel=1] [L48] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=173, \old(head)=167, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=173, head={176:167}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L250] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=173, \old(head)=176, \old(head)=167, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=173, head={176:167}, methaneLevelCritical=0, pumpRunning=0, systemActive=130, waterLevel=1] [L251] int systemActive = 1; VAL [\old(cleanupTimeShifts)=173, \old(head)=167, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=173, head={176:167}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=173, \old(head)=167, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=4, head={176:167}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L720] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=173, \old(head)=167, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] 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] [L529] 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] [L533] 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] [L534] 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] [L535] 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] [L446] 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] [L449] 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] [L450] 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] [L535] 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] [L535] 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] [L537] 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] [L539] 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] [L540] 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] [L522] 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] [L181] 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] [L182] 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] [L183] 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] [L184] 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] [L185] 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] [L188] 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] [L190] 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] [L192] 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] [L198] 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] [L200] 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] [L202] 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] [L65] 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] [L66] 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] [L202] 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] [L208] tmp___0 = __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=1, waterLevel=2] [L210] COND TRUE \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=1, waterLevel=2] [L212] CALL changeMethaneLevel() 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] [L77] COND FALSE !(\read(methaneLevelCritical)) 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] [L80] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L212] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L218] 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=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L220] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L235] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L257] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L264] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L266] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L286] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L289] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L383] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L384] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L385] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L389] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L134] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L135] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L389] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L389] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L391] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L394] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L396] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L397] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L291] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L293] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L295] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L314] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L295] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L266] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L272] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L152] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L153] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L86] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L89] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L157] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L159] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L161] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L338] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L341] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L342] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L161] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L161] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L163] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L165] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L145] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 612 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 39.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 31.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2019 SDtfs, 3655 SDslu, 3832 SDs, 0 SdLazy, 7364 SolverSat, 1103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 322 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2075occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 1887 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1689 NumberOfCodeBlocks, 1689 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1485 ConstructedInterpolants, 0 QuantifiedInterpolants, 638785 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...