/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:34:20,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:34:20,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:34:20,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:34:20,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:34:20,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:34:20,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:34:20,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:34:20,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:34:20,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:34:20,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:34:20,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:34:20,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:34:20,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:34:20,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:34:20,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:34:20,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:34:20,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:34:20,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:34:20,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:34:20,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:34:20,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:34:20,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:34:20,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:34:20,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:34:20,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:34:20,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:34:20,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:34:20,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:34:20,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:34:20,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:34:20,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:34:20,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:34:20,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:34:20,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:34:20,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:34:20,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:34:20,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:34:20,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:34:20,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:34:20,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:34:20,443 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 11:34:20,460 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:34:20,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:34:20,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:34:20,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:34:20,462 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:34:20,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:34:20,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:34:20,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:34:20,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:34:20,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:34:20,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:34:20,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:34:20,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:34:20,464 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:34:20,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:34:20,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:34:20,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:34:20,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:34:20,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:34:20,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:34:20,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:34:20,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:34:20,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:34:20,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:34:20,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:34:20,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:34:20,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:34:20,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:34:20,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:34:20,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:34:20,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:34:20,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:34:20,762 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:34:20,763 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:34:20,764 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:34:20,764 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-07-17 11:34:20,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/362e01ba2/f60812fbc415412f8b16882104a9da43/FLAG4117b0e50 [2020-07-17 11:34:21,398 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:34:21,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product33.cil.c [2020-07-17 11:34:21,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/362e01ba2/f60812fbc415412f8b16882104a9da43/FLAG4117b0e50 [2020-07-17 11:34:21,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/362e01ba2/f60812fbc415412f8b16882104a9da43 [2020-07-17 11:34:21,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:34:21,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:34:21,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:34:21,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:34:21,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:34:21,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:34:21" (1/1) ... [2020-07-17 11:34:21,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58640052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:21, skipping insertion in model container [2020-07-17 11:34:21,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:34:21" (1/1) ... [2020-07-17 11:34:21,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:34:21,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:34:22,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:34:22,210 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:34:22,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:34:22,381 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:34:22,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:22 WrapperNode [2020-07-17 11:34:22,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:34:22,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:34:22,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:34:22,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:34:22,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:22" (1/1) ... [2020-07-17 11:34:22,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:22" (1/1) ... [2020-07-17 11:34:22,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:22" (1/1) ... [2020-07-17 11:34:22,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:22" (1/1) ... [2020-07-17 11:34:22,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:22" (1/1) ... [2020-07-17 11:34:22,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:22" (1/1) ... [2020-07-17 11:34:22,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:22" (1/1) ... [2020-07-17 11:34:22,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:34:22,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:34:22,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:34:22,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:34:22,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:22" (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 11:34:22,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:34:22,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:34:22,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:34:22,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:34:22,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:34:22,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:34:22,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:34:22,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:34:22,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:34:22,534 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:34:22,534 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:34:22,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:34:22,535 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:34:22,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:34:22,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:34:22,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:34:22,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:34:22,537 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:34:22,537 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:34:22,537 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:34:22,537 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:34:22,537 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:34:22,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:34:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:34:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:34:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-17 11:34:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:34:22,538 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 11:34:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:34:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:34:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:34:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:34:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:34:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:34:22,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-17 11:34:22,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:34:22,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-17 11:34:22,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:34:22,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:34:22,540 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:34:22,540 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:34:22,540 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:34:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:34:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:34:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:34:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:34:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:34:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:34:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:34:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:34:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:34:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:34:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:34:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:34:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:34:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:34:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:34:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:34:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:34:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:34:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:34:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:34:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:34:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:34:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:34:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:34:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:34:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:34:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:34:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:34:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:34:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:34:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:34:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:34:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:34:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-17 11:34:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:34:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:34:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:34:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-17 11:34:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:34:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 11:34:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-17 11:34:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:34:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:34:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:34:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:34:22,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:34:23,621 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:34:23,621 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:34:23,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:34:23 BoogieIcfgContainer [2020-07-17 11:34:23,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:34:23,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:34:23,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:34:23,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:34:23,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:34:21" (1/3) ... [2020-07-17 11:34:23,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf6871f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:34:23, skipping insertion in model container [2020-07-17 11:34:23,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:34:22" (2/3) ... [2020-07-17 11:34:23,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf6871f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:34:23, skipping insertion in model container [2020-07-17 11:34:23,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:34:23" (3/3) ... [2020-07-17 11:34:23,637 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2020-07-17 11:34:23,648 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:34:23,656 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:34:23,671 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:34:23,697 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:34:23,697 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:34:23,697 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:34:23,697 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:34:23,698 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:34:23,698 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:34:23,698 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:34:23,698 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:34:23,721 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2020-07-17 11:34:23,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-17 11:34:23,731 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:23,732 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] [2020-07-17 11:34:23,733 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:23,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:23,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1120421974, now seen corresponding path program 1 times [2020-07-17 11:34:23,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:23,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969595867] [2020-07-17 11:34:23,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:24,454 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:24,530 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 11:34:24,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969595867] [2020-07-17 11:34:24,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:34:24,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 11:34:24,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569676841] [2020-07-17 11:34:24,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 11:34:24,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:24,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 11:34:24,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:34:24,558 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 3 states. [2020-07-17 11:34:25,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:25,596 INFO L93 Difference]: Finished difference Result 249 states and 331 transitions. [2020-07-17 11:34:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:34:25,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-17 11:34:25,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:25,615 INFO L225 Difference]: With dead ends: 249 [2020-07-17 11:34:25,616 INFO L226 Difference]: Without dead ends: 135 [2020-07-17 11:34:25,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:34:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-07-17 11:34:25,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-07-17 11:34:25,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-07-17 11:34:25,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2020-07-17 11:34:25,711 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 46 [2020-07-17 11:34:25,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:25,712 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2020-07-17 11:34:25,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 11:34:25,713 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2020-07-17 11:34:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-17 11:34:25,717 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:25,717 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] [2020-07-17 11:34:25,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:34:25,718 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:25,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:25,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1195015831, now seen corresponding path program 1 times [2020-07-17 11:34:25,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:25,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590060734] [2020-07-17 11:34:25,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:26,086 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:26,128 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 11:34:26,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590060734] [2020-07-17 11:34:26,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:34:26,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:34:26,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804805183] [2020-07-17 11:34:26,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:34:26,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:26,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:34:26,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:34:26,132 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 4 states. [2020-07-17 11:34:26,590 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:34:27,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:27,223 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2020-07-17 11:34:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:34:27,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-17 11:34:27,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:27,227 INFO L225 Difference]: With dead ends: 182 [2020-07-17 11:34:27,227 INFO L226 Difference]: Without dead ends: 119 [2020-07-17 11:34:27,230 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 11:34:27,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-17 11:34:27,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-07-17 11:34:27,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-17 11:34:27,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-07-17 11:34:27,304 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 47 [2020-07-17 11:34:27,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:27,305 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-07-17 11:34:27,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:34:27,305 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-07-17 11:34:27,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-17 11:34:27,307 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:27,307 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] [2020-07-17 11:34:27,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:34:27,308 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:27,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:27,308 INFO L82 PathProgramCache]: Analyzing trace with hash -234309885, now seen corresponding path program 1 times [2020-07-17 11:34:27,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:27,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130091326] [2020-07-17 11:34:27,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:27,657 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:27,794 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 11:34:27,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130091326] [2020-07-17 11:34:27,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:34:27,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:34:27,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515943272] [2020-07-17 11:34:27,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:34:27,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:27,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:34:27,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:34:27,797 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 8 states. [2020-07-17 11:34:28,202 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:34:28,527 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:34:28,771 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:34:29,018 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:34:29,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:29,897 INFO L93 Difference]: Finished difference Result 191 states and 236 transitions. [2020-07-17 11:34:29,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 11:34:29,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-17 11:34:29,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:29,902 INFO L225 Difference]: With dead ends: 191 [2020-07-17 11:34:29,902 INFO L226 Difference]: Without dead ends: 119 [2020-07-17 11:34:29,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:34:29,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-17 11:34:29,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-07-17 11:34:29,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-17 11:34:29,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-07-17 11:34:29,934 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 51 [2020-07-17 11:34:29,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:29,935 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-07-17 11:34:29,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:34:29,935 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-07-17 11:34:29,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-17 11:34:29,937 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:29,938 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] [2020-07-17 11:34:29,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:34:29,938 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:29,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:29,938 INFO L82 PathProgramCache]: Analyzing trace with hash -962632878, now seen corresponding path program 1 times [2020-07-17 11:34:29,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:29,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4835455] [2020-07-17 11:34:29,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:30,208 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:30,313 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 11:34:30,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4835455] [2020-07-17 11:34:30,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:34:30,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 11:34:30,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819022252] [2020-07-17 11:34:30,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 11:34:30,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:30,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 11:34:30,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-17 11:34:30,340 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 6 states. [2020-07-17 11:34:30,721 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:34:31,828 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:34:32,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:32,230 INFO L93 Difference]: Finished difference Result 274 states and 340 transitions. [2020-07-17 11:34:32,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 11:34:32,231 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-07-17 11:34:32,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:32,234 INFO L225 Difference]: With dead ends: 274 [2020-07-17 11:34:32,234 INFO L226 Difference]: Without dead ends: 202 [2020-07-17 11:34:32,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:34:32,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-17 11:34:32,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 161. [2020-07-17 11:34:32,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-07-17 11:34:32,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 185 transitions. [2020-07-17 11:34:32,278 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 185 transitions. Word has length 59 [2020-07-17 11:34:32,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:32,278 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 185 transitions. [2020-07-17 11:34:32,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 11:34:32,279 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 185 transitions. [2020-07-17 11:34:32,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-17 11:34:32,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:32,282 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] [2020-07-17 11:34:32,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:34:32,282 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:32,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:32,283 INFO L82 PathProgramCache]: Analyzing trace with hash 869233952, now seen corresponding path program 1 times [2020-07-17 11:34:32,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:32,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83509328] [2020-07-17 11:34:32,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,604 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:32,741 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 11:34:32,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83509328] [2020-07-17 11:34:32,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:34:32,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-17 11:34:32,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375031420] [2020-07-17 11:34:32,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-17 11:34:32,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:32,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-17 11:34:32,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:34:32,744 INFO L87 Difference]: Start difference. First operand 161 states and 185 transitions. Second operand 12 states. [2020-07-17 11:34:33,199 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:34:33,537 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:34:33,791 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:34:34,027 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:34:34,568 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:34:35,293 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:34:35,556 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:34:35,809 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:34:36,036 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:34:36,289 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:34:36,531 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:34:37,418 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:34:37,689 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:34:38,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:38,302 INFO L93 Difference]: Finished difference Result 568 states and 750 transitions. [2020-07-17 11:34:38,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-17 11:34:38,303 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2020-07-17 11:34:38,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:38,309 INFO L225 Difference]: With dead ends: 568 [2020-07-17 11:34:38,309 INFO L226 Difference]: Without dead ends: 431 [2020-07-17 11:34:38,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-17 11:34:38,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-07-17 11:34:38,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 373. [2020-07-17 11:34:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-07-17 11:34:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 443 transitions. [2020-07-17 11:34:38,405 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 443 transitions. Word has length 73 [2020-07-17 11:34:38,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:38,406 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 443 transitions. [2020-07-17 11:34:38,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-17 11:34:38,406 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 443 transitions. [2020-07-17 11:34:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-17 11:34:38,410 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:38,410 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:38,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:34:38,411 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:38,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:38,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1180420772, now seen corresponding path program 1 times [2020-07-17 11:34:38,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:38,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171699933] [2020-07-17 11:34:38,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,783 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:39,019 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-17 11:34:39,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171699933] [2020-07-17 11:34:39,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360883126] [2020-07-17 11:34:39,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:34:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:39,213 INFO L264 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-17 11:34:39,226 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:34:39,362 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:34:39,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 11:34:39,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 17 [2020-07-17 11:34:39,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544313430] [2020-07-17 11:34:39,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:34:39,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:39,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:34:39,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-17 11:34:39,365 INFO L87 Difference]: Start difference. First operand 373 states and 443 transitions. Second operand 8 states. [2020-07-17 11:34:40,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:40,451 INFO L93 Difference]: Finished difference Result 906 states and 1196 transitions. [2020-07-17 11:34:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-17 11:34:40,452 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-07-17 11:34:40,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:40,460 INFO L225 Difference]: With dead ends: 906 [2020-07-17 11:34:40,460 INFO L226 Difference]: Without dead ends: 650 [2020-07-17 11:34:40,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-07-17 11:34:40,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2020-07-17 11:34:40,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 578. [2020-07-17 11:34:40,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-07-17 11:34:40,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 714 transitions. [2020-07-17 11:34:40,630 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 714 transitions. Word has length 117 [2020-07-17 11:34:40,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:40,631 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 714 transitions. [2020-07-17 11:34:40,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:34:40,631 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 714 transitions. [2020-07-17 11:34:40,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-17 11:34:40,633 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:40,634 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:40,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-17 11:34:40,848 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:40,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:40,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1648815792, now seen corresponding path program 1 times [2020-07-17 11:34:40,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:40,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411433894] [2020-07-17 11:34:40,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,135 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,283 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-17 11:34:41,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411433894] [2020-07-17 11:34:41,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328855703] [2020-07-17 11:34:41,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:34:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:41,480 INFO L264 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-17 11:34:41,485 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:34:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-17 11:34:41,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 11:34:41,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-17 11:34:41,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130190156] [2020-07-17 11:34:41,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 11:34:41,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:41,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 11:34:41,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:34:41,535 INFO L87 Difference]: Start difference. First operand 578 states and 714 transitions. Second operand 6 states. [2020-07-17 11:34:41,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:41,705 INFO L93 Difference]: Finished difference Result 1152 states and 1454 transitions. [2020-07-17 11:34:41,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 11:34:41,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2020-07-17 11:34:41,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:41,711 INFO L225 Difference]: With dead ends: 1152 [2020-07-17 11:34:41,712 INFO L226 Difference]: Without dead ends: 598 [2020-07-17 11:34:41,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-17 11:34:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-07-17 11:34:41,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-07-17 11:34:41,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-07-17 11:34:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 738 transitions. [2020-07-17 11:34:41,860 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 738 transitions. Word has length 109 [2020-07-17 11:34:41,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:41,861 INFO L479 AbstractCegarLoop]: Abstraction has 598 states and 738 transitions. [2020-07-17 11:34:41,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 11:34:41,861 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 738 transitions. [2020-07-17 11:34:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-17 11:34:41,864 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:41,865 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:42,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:34:42,078 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:42,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:42,079 INFO L82 PathProgramCache]: Analyzing trace with hash -2066212398, now seen corresponding path program 1 times [2020-07-17 11:34:42,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:42,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582094697] [2020-07-17 11:34:42,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,391 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-17 11:34:42,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582094697] [2020-07-17 11:34:42,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824080898] [2020-07-17 11:34:42,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:34:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:42,877 INFO L264 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-17 11:34:42,893 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:34:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-17 11:34:42,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 11:34:42,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2020-07-17 11:34:42,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965789448] [2020-07-17 11:34:43,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 11:34:43,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:43,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 11:34:43,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-17 11:34:43,001 INFO L87 Difference]: Start difference. First operand 598 states and 738 transitions. Second operand 5 states. [2020-07-17 11:34:43,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:43,160 INFO L93 Difference]: Finished difference Result 1053 states and 1327 transitions. [2020-07-17 11:34:43,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:34:43,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-07-17 11:34:43,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:43,166 INFO L225 Difference]: With dead ends: 1053 [2020-07-17 11:34:43,166 INFO L226 Difference]: Without dead ends: 479 [2020-07-17 11:34:43,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-17 11:34:43,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-07-17 11:34:43,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2020-07-17 11:34:43,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-17 11:34:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 581 transitions. [2020-07-17 11:34:43,322 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 581 transitions. Word has length 109 [2020-07-17 11:34:43,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:43,322 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 581 transitions. [2020-07-17 11:34:43,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 11:34:43,323 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 581 transitions. [2020-07-17 11:34:43,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-17 11:34:43,325 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:43,325 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:43,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:34:43,539 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:43,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:43,539 INFO L82 PathProgramCache]: Analyzing trace with hash 147640793, now seen corresponding path program 1 times [2020-07-17 11:34:43,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:43,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508519293] [2020-07-17 11:34:43,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,887 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:34:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-17 11:34:44,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508519293] [2020-07-17 11:34:44,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141856663] [2020-07-17 11:34:44,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:34:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:34:44,400 INFO L264 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-17 11:34:44,405 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:34:44,493 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:34:44,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 11:34:44,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 14 [2020-07-17 11:34:44,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515796670] [2020-07-17 11:34:44,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-17 11:34:44,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:34:44,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-17 11:34:44,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-17 11:34:44,496 INFO L87 Difference]: Start difference. First operand 479 states and 581 transitions. Second operand 14 states. [2020-07-17 11:34:45,157 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:34:45,760 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:34:46,791 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-17 11:34:47,066 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:34:47,297 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:34:47,743 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-17 11:34:48,009 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:34:48,262 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 11:34:49,003 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:34:49,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:34:49,777 INFO L93 Difference]: Finished difference Result 969 states and 1243 transitions. [2020-07-17 11:34:49,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-17 11:34:49,777 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 113 [2020-07-17 11:34:49,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:34:49,781 INFO L225 Difference]: With dead ends: 969 [2020-07-17 11:34:49,781 INFO L226 Difference]: Without dead ends: 564 [2020-07-17 11:34:49,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 153 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=301, Invalid=755, Unknown=0, NotChecked=0, Total=1056 [2020-07-17 11:34:49,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-07-17 11:34:49,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 467. [2020-07-17 11:34:49,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-07-17 11:34:49,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 565 transitions. [2020-07-17 11:34:49,879 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 565 transitions. Word has length 113 [2020-07-17 11:34:49,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:34:49,881 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 565 transitions. [2020-07-17 11:34:49,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-17 11:34:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 565 transitions. [2020-07-17 11:34:49,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-17 11:34:49,883 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:34:49,884 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:34:50,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:34:50,098 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:34:50,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:34:50,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1088865250, now seen corresponding path program 2 times [2020-07-17 11:34:50,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:34:50,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151254520] [2020-07-17 11:34:50,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:34:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:34:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:34:50,458 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:34:50,458 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:34:50,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 11:34:50,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:34:50 BoogieIcfgContainer [2020-07-17 11:34:50,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:34:50,651 INFO L168 Benchmark]: Toolchain (without parser) took 28935.72 ms. Allocated memory was 143.7 MB in the beginning and 616.6 MB in the end (delta: 472.9 MB). Free memory was 100.3 MB in the beginning and 204.2 MB in the end (delta: -104.0 MB). Peak memory consumption was 368.9 MB. Max. memory is 7.1 GB. [2020-07-17 11:34:50,651 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 11:34:50,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.56 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 167.1 MB in the end (delta: -67.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-07-17 11:34:50,653 INFO L168 Benchmark]: Boogie Preprocessor took 85.59 ms. Allocated memory is still 200.8 MB. Free memory was 167.1 MB in the beginning and 163.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-17 11:34:50,654 INFO L168 Benchmark]: RCFGBuilder took 1158.89 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 163.0 MB in the beginning and 195.5 MB in the end (delta: -32.5 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-17 11:34:50,655 INFO L168 Benchmark]: TraceAbstraction took 27020.14 ms. Allocated memory was 231.7 MB in the beginning and 616.6 MB in the end (delta: 384.8 MB). Free memory was 194.1 MB in the beginning and 204.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 374.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:34:50,669 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 664.56 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 167.1 MB in the end (delta: -67.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.59 ms. Allocated memory is still 200.8 MB. Free memory was 167.1 MB in the beginning and 163.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1158.89 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 163.0 MB in the beginning and 195.5 MB in the end (delta: -32.5 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27020.14 ms. Allocated memory was 231.7 MB in the beginning and 616.6 MB in the end (delta: 384.8 MB). Free memory was 194.1 MB in the beginning and 204.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 374.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=147, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L487] int retValue_acc ; [L488] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L492] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L493] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L494] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L498] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L499] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L567] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L567] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L720] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L752] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L852] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L754] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L758] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L777] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L758] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L735] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L598] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L720] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L722] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L722] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L752] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L767] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L735] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L598] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L720] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L722] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L722] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L752] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L767] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L884] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L884] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L888] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L869] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.7s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 18.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 990 SDtfs, 1902 SDslu, 1534 SDs, 0 SdLazy, 3984 SolverSat, 1217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 805 GetRequests, 679 SyntacticMatches, 7 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=598occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 344 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 1320 NumberOfCodeBlocks, 1320 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1159 ConstructedInterpolants, 0 QuantifiedInterpolants, 323342 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3129 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 178/200 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...