/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_spec1_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 12:28:32,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 12:28:32,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 12:28:32,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 12:28:32,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 12:28:32,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 12:28:32,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 12:28:32,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 12:28:32,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 12:28:32,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 12:28:32,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 12:28:32,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 12:28:32,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 12:28:32,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 12:28:32,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 12:28:32,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 12:28:32,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 12:28:32,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 12:28:32,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 12:28:32,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 12:28:32,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 12:28:32,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 12:28:32,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 12:28:32,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 12:28:32,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 12:28:32,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 12:28:32,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 12:28:32,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 12:28:32,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 12:28:32,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 12:28:32,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 12:28:32,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 12:28:32,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 12:28:32,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 12:28:32,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 12:28:32,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 12:28:32,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 12:28:32,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 12:28:32,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 12:28:32,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 12:28:32,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 12:28:32,473 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 12:28:32,498 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 12:28:32,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 12:28:32,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 12:28:32,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 12:28:32,499 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 12:28:32,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 12:28:32,500 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 12:28:32,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 12:28:32,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 12:28:32,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 12:28:32,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 12:28:32,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 12:28:32,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 12:28:32,501 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 12:28:32,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 12:28:32,502 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 12:28:32,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 12:28:32,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 12:28:32,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 12:28:32,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 12:28:32,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 12:28:32,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 12:28:32,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 12:28:32,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 12:28:32,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 12:28:32,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 12:28:32,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 12:28:32,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 12:28:32,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 12:28:32,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 12:28:32,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 12:28:32,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 12:28:32,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 12:28:32,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 12:28:32,973 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 12:28:32,974 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-04 12:28:33,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f26bd4c35/8bcb34c42f064ec88f53f603e2cb4740/FLAG6fed624d7 [2020-09-04 12:28:33,727 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 12:28:33,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-04 12:28:33,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f26bd4c35/8bcb34c42f064ec88f53f603e2cb4740/FLAG6fed624d7 [2020-09-04 12:28:33,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f26bd4c35/8bcb34c42f064ec88f53f603e2cb4740 [2020-09-04 12:28:33,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 12:28:33,951 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 12:28:33,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 12:28:33,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 12:28:33,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 12:28:33,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 12:28:33" (1/1) ... [2020-09-04 12:28:33,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:33, skipping insertion in model container [2020-09-04 12:28:33,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 12:28:33" (1/1) ... [2020-09-04 12:28:33,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 12:28:34,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 12:28:34,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 12:28:34,508 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 12:28:34,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 12:28:34,631 INFO L208 MainTranslator]: Completed translation [2020-09-04 12:28:34,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:34 WrapperNode [2020-09-04 12:28:34,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 12:28:34,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 12:28:34,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 12:28:34,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 12:28:34,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:34" (1/1) ... [2020-09-04 12:28:34,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:34" (1/1) ... [2020-09-04 12:28:34,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:34" (1/1) ... [2020-09-04 12:28:34,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:34" (1/1) ... [2020-09-04 12:28:34,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:34" (1/1) ... [2020-09-04 12:28:34,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:34" (1/1) ... [2020-09-04 12:28:34,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:34" (1/1) ... [2020-09-04 12:28:34,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 12:28:34,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 12:28:34,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 12:28:34,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 12:28:34,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 12:28:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 12:28:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 12:28:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 12:28:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 12:28:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 12:28:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 12:28:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 12:28:34,826 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 12:28:34,826 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 12:28:34,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 12:28:34,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 12:28:34,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 12:28:34,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 12:28:34,829 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 12:28:34,829 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 12:28:34,830 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 12:28:34,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-04 12:28:34,830 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 12:28:34,830 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 12:28:34,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 12:28:34,831 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 12:28:34,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 12:28:34,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 12:28:34,831 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 12:28:34,832 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 12:28:34,832 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 12:28:34,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 12:28:34,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 12:28:34,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 12:28:34,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 12:28:34,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 12:28:34,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 12:28:34,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 12:28:34,834 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 12:28:34,834 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 12:28:34,834 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 12:28:34,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 12:28:34,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 12:28:34,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 12:28:34,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 12:28:34,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 12:28:34,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 12:28:34,836 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 12:28:34,836 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 12:28:34,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 12:28:34,836 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 12:28:34,837 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 12:28:34,837 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 12:28:34,837 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 12:28:34,838 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 12:28:34,838 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 12:28:34,838 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 12:28:34,838 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 12:28:34,838 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 12:28:34,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-04 12:28:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 12:28:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 12:28:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 12:28:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 12:28:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 12:28:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 12:28:34,839 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 12:28:34,840 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 12:28:34,840 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 12:28:34,840 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 12:28:34,840 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 12:28:34,840 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 12:28:34,840 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 12:28:34,841 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 12:28:34,841 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 12:28:34,841 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 12:28:34,841 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 12:28:34,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 12:28:34,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 12:28:34,843 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 12:28:34,843 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 12:28:34,843 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 12:28:34,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 12:28:34,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 12:28:34,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 12:28:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 12:28:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 12:28:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 12:28:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 12:28:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 12:28:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 12:28:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 12:28:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 12:28:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 12:28:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 12:28:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 12:28:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 12:28:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 12:28:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 12:28:35,885 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 12:28:35,885 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 12:28:35,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 12:28:35 BoogieIcfgContainer [2020-09-04 12:28:35,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 12:28:35,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 12:28:35,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 12:28:35,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 12:28:35,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 12:28:33" (1/3) ... [2020-09-04 12:28:35,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e749e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 12:28:35, skipping insertion in model container [2020-09-04 12:28:35,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:28:34" (2/3) ... [2020-09-04 12:28:35,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e749e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 12:28:35, skipping insertion in model container [2020-09-04 12:28:35,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 12:28:35" (3/3) ... [2020-09-04 12:28:35,900 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2020-09-04 12:28:35,911 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 12:28:35,921 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 12:28:35,944 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 12:28:35,975 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 12:28:35,975 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 12:28:35,975 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 12:28:35,975 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 12:28:35,975 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 12:28:35,976 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 12:28:35,976 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 12:28:35,976 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 12:28:36,002 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-09-04 12:28:36,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 12:28:36,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:28:36,016 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] [2020-09-04 12:28:36,016 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:28:36,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:28:36,023 INFO L82 PathProgramCache]: Analyzing trace with hash -963613915, now seen corresponding path program 1 times [2020-09-04 12:28:36,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:28:36,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494604284] [2020-09-04 12:28:36,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:28:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:36,749 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 12:28:36,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:28:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:36,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:28:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:36,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:28:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:36,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:28:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:36,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:28:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:36,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-04 12:28:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:36,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-04 12:28:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:36,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:28:36,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494604284] [2020-09-04 12:28:36,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:28:36,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 12:28:36,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300181515] [2020-09-04 12:28:36,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 12:28:36,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:28:36,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 12:28:36,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 12:28:36,913 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 3 states. [2020-09-04 12:28:38,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:28:38,080 INFO L93 Difference]: Finished difference Result 310 states and 407 transitions. [2020-09-04 12:28:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 12:28:38,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-04 12:28:38,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:28:38,101 INFO L225 Difference]: With dead ends: 310 [2020-09-04 12:28:38,101 INFO L226 Difference]: Without dead ends: 168 [2020-09-04 12:28:38,107 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 [2020-09-04 12:28:38,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-09-04 12:28:38,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 133. [2020-09-04 12:28:38,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-09-04 12:28:38,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2020-09-04 12:28:38,206 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 46 [2020-09-04 12:28:38,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:28:38,207 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2020-09-04 12:28:38,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 12:28:38,207 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2020-09-04 12:28:38,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-04 12:28:38,211 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:28:38,211 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] [2020-09-04 12:28:38,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 12:28:38,212 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:28:38,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:28:38,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1539591980, now seen corresponding path program 1 times [2020-09-04 12:28:38,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:28:38,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235767884] [2020-09-04 12:28:38,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:28:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:38,601 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 12:28:38,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:28:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:38,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:28:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:38,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:28:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:38,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:28:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:38,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:28:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:38,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-04 12:28:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:38,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-04 12:28:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:38,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:28:38,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235767884] [2020-09-04 12:28:38,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:28:38,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 12:28:38,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913830062] [2020-09-04 12:28:38,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 12:28:38,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:28:38,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 12:28:38,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 12:28:38,663 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand 4 states. [2020-09-04 12:28:39,144 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:28:40,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:28:40,098 INFO L93 Difference]: Finished difference Result 233 states and 286 transitions. [2020-09-04 12:28:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 12:28:40,099 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-04 12:28:40,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:28:40,102 INFO L225 Difference]: With dead ends: 233 [2020-09-04 12:28:40,103 INFO L226 Difference]: Without dead ends: 152 [2020-09-04 12:28:40,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 12:28:40,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-09-04 12:28:40,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 124. [2020-09-04 12:28:40,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-09-04 12:28:40,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2020-09-04 12:28:40,147 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 47 [2020-09-04 12:28:40,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:28:40,147 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2020-09-04 12:28:40,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 12:28:40,148 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2020-09-04 12:28:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-04 12:28:40,150 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:28:40,150 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] [2020-09-04 12:28:40,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 12:28:40,151 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:28:40,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:28:40,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1079098286, now seen corresponding path program 1 times [2020-09-04 12:28:40,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:28:40,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956020438] [2020-09-04 12:28:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:28:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:40,554 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 12:28:40,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:28:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:40,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:28:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:40,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:28:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:40,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:28:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:40,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:28:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:40,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-04 12:28:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:40,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-04 12:28:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:28:40,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956020438] [2020-09-04 12:28:40,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:28:40,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 12:28:40,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168371760] [2020-09-04 12:28:40,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 12:28:40,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:28:40,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 12:28:40,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-04 12:28:40,645 INFO L87 Difference]: Start difference. First operand 124 states and 145 transitions. Second operand 8 states. [2020-09-04 12:28:41,083 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 12:28:41,474 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 12:28:41,778 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 12:28:42,063 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 12:28:42,899 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:28:44,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:28:44,850 INFO L93 Difference]: Finished difference Result 427 states and 532 transitions. [2020-09-04 12:28:44,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 12:28:44,851 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-04 12:28:44,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:28:44,856 INFO L225 Difference]: With dead ends: 427 [2020-09-04 12:28:44,856 INFO L226 Difference]: Without dead ends: 327 [2020-09-04 12:28:44,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-04 12:28:44,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-09-04 12:28:44,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 262. [2020-09-04 12:28:44,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-04 12:28:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 318 transitions. [2020-09-04 12:28:44,950 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 318 transitions. Word has length 52 [2020-09-04 12:28:44,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:28:44,950 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 318 transitions. [2020-09-04 12:28:44,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 12:28:44,951 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 318 transitions. [2020-09-04 12:28:44,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-04 12:28:44,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:28:44,954 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] [2020-09-04 12:28:44,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 12:28:44,954 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:28:44,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:28:44,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1051584563, now seen corresponding path program 1 times [2020-09-04 12:28:44,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:28:44,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334188261] [2020-09-04 12:28:44,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:28:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:45,315 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 12:28:45,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:28:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:45,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:28:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:45,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:28:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:45,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:28:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:45,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:28:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:45,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-04 12:28:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:45,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-04 12:28:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:45,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-04 12:28:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:45,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:28:45,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334188261] [2020-09-04 12:28:45,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:28:45,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 12:28:45,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960499614] [2020-09-04 12:28:45,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 12:28:45,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:28:45,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 12:28:45,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-04 12:28:45,425 INFO L87 Difference]: Start difference. First operand 262 states and 318 transitions. Second operand 8 states. [2020-09-04 12:28:45,787 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 12:28:46,903 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 12:28:47,328 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 12:28:47,624 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 12:28:47,964 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 12:28:48,550 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:28:49,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:28:49,502 INFO L93 Difference]: Finished difference Result 847 states and 1105 transitions. [2020-09-04 12:28:49,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 12:28:49,503 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-09-04 12:28:49,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:28:49,509 INFO L225 Difference]: With dead ends: 847 [2020-09-04 12:28:49,509 INFO L226 Difference]: Without dead ends: 609 [2020-09-04 12:28:49,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-04 12:28:49,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-09-04 12:28:49,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 479. [2020-09-04 12:28:49,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-09-04 12:28:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 586 transitions. [2020-09-04 12:28:49,670 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 586 transitions. Word has length 57 [2020-09-04 12:28:49,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:28:49,670 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 586 transitions. [2020-09-04 12:28:49,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 12:28:49,671 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 586 transitions. [2020-09-04 12:28:49,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-04 12:28:49,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:28:49,674 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] [2020-09-04 12:28:49,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 12:28:49,675 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:28:49,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:28:49,675 INFO L82 PathProgramCache]: Analyzing trace with hash -450930313, now seen corresponding path program 1 times [2020-09-04 12:28:49,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:28:49,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884991774] [2020-09-04 12:28:49,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:28:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:50,020 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 12:28:50,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:28:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:50,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:28:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:50,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:28:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:50,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:28:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:50,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:28:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:50,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-04 12:28:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:50,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 12:28:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:50,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-04 12:28:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:50,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-04 12:28:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:50,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:28:50,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884991774] [2020-09-04 12:28:50,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:28:50,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 12:28:50,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66733224] [2020-09-04 12:28:50,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 12:28:50,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:28:50,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 12:28:50,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-04 12:28:50,149 INFO L87 Difference]: Start difference. First operand 479 states and 586 transitions. Second operand 9 states. [2020-09-04 12:28:50,573 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 12:28:51,687 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 12:28:52,022 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 12:28:52,320 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 12:28:52,979 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 12:28:53,331 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:28:54,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:28:54,453 INFO L93 Difference]: Finished difference Result 1361 states and 1836 transitions. [2020-09-04 12:28:54,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 12:28:54,454 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-04 12:28:54,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:28:54,468 INFO L225 Difference]: With dead ends: 1361 [2020-09-04 12:28:54,469 INFO L226 Difference]: Without dead ends: 906 [2020-09-04 12:28:54,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-09-04 12:28:54,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2020-09-04 12:28:54,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 719. [2020-09-04 12:28:54,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-04 12:28:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 887 transitions. [2020-09-04 12:28:54,645 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 887 transitions. Word has length 61 [2020-09-04 12:28:54,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:28:54,646 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 887 transitions. [2020-09-04 12:28:54,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 12:28:54,646 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 887 transitions. [2020-09-04 12:28:54,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-04 12:28:54,648 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:28:54,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 12:28:54,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 12:28:54,649 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:28:54,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:28:54,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1506642599, now seen corresponding path program 1 times [2020-09-04 12:28:54,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:28:54,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536009215] [2020-09-04 12:28:54,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:28:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:54,996 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 12:28:54,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:28:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:28:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:28:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:28:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:28:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-04 12:28:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 12:28:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:28:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:28:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:28:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 12:28:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 12:28:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-04 12:28:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:28:55,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:28:55,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536009215] [2020-09-04 12:28:55,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:28:55,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 12:28:55,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805966960] [2020-09-04 12:28:55,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 12:28:55,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:28:55,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 12:28:55,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-04 12:28:55,171 INFO L87 Difference]: Start difference. First operand 719 states and 887 transitions. Second operand 9 states. [2020-09-04 12:28:55,538 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 12:28:56,679 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:28:57,011 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 12:28:57,320 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:28:57,642 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:28:59,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:28:59,560 INFO L93 Difference]: Finished difference Result 2409 states and 3416 transitions. [2020-09-04 12:28:59,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 12:28:59,561 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-09-04 12:28:59,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:28:59,576 INFO L225 Difference]: With dead ends: 2409 [2020-09-04 12:28:59,576 INFO L226 Difference]: Without dead ends: 1714 [2020-09-04 12:28:59,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-09-04 12:28:59,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2020-09-04 12:28:59,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1291. [2020-09-04 12:28:59,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1291 states. [2020-09-04 12:28:59,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1578 transitions. [2020-09-04 12:28:59,864 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1578 transitions. Word has length 84 [2020-09-04 12:28:59,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:28:59,867 INFO L479 AbstractCegarLoop]: Abstraction has 1291 states and 1578 transitions. [2020-09-04 12:28:59,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 12:28:59,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1578 transitions. [2020-09-04 12:28:59,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-04 12:28:59,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:28:59,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 12:28:59,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 12:28:59,876 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:28:59,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:28:59,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1762832698, now seen corresponding path program 1 times [2020-09-04 12:28:59,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:28:59,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801486539] [2020-09-04 12:28:59,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:28:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,161 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 12:29:00,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:29:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:29:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:29:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:29:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:29:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-04 12:29:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 12:29:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:29:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:29:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:29:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 12:29:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 12:29:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-04 12:29:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:29:00,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801486539] [2020-09-04 12:29:00,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:29:00,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 12:29:00,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803146936] [2020-09-04 12:29:00,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 12:29:00,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:29:00,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 12:29:00,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-04 12:29:00,355 INFO L87 Difference]: Start difference. First operand 1291 states and 1578 transitions. Second operand 9 states. [2020-09-04 12:29:01,548 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 12:29:01,846 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 12:29:02,183 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:29:02,478 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:29:03,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:29:03,687 INFO L93 Difference]: Finished difference Result 2981 states and 3956 transitions. [2020-09-04 12:29:03,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 12:29:03,692 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-09-04 12:29:03,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:29:03,707 INFO L225 Difference]: With dead ends: 2981 [2020-09-04 12:29:03,708 INFO L226 Difference]: Without dead ends: 1714 [2020-09-04 12:29:03,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-04 12:29:03,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2020-09-04 12:29:03,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1331. [2020-09-04 12:29:03,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1331 states. [2020-09-04 12:29:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 1618 transitions. [2020-09-04 12:29:03,943 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 1618 transitions. Word has length 84 [2020-09-04 12:29:03,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:29:03,944 INFO L479 AbstractCegarLoop]: Abstraction has 1331 states and 1618 transitions. [2020-09-04 12:29:03,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 12:29:03,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 1618 transitions. [2020-09-04 12:29:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-04 12:29:03,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:29:03,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 12:29:03,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 12:29:03,947 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:29:03,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:29:03,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1785464952, now seen corresponding path program 1 times [2020-09-04 12:29:03,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:29:03,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769430927] [2020-09-04 12:29:03,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:29:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,257 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 12:29:04,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 12:29:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 12:29:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 12:29:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-04 12:29:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 12:29:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-04 12:29:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-04 12:29:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:29:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 12:29:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 12:29:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 12:29:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-04 12:29:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-04 12:29:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 12:29:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 12:29:04,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769430927] [2020-09-04 12:29:04,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 12:29:04,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-04 12:29:04,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357042897] [2020-09-04 12:29:04,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 12:29:04,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 12:29:04,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 12:29:04,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-04 12:29:04,409 INFO L87 Difference]: Start difference. First operand 1331 states and 1618 transitions. Second operand 11 states. [2020-09-04 12:29:04,979 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:29:05,274 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:29:05,557 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:29:06,439 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:29:06,750 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:29:07,058 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 12:29:08,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 12:29:08,370 INFO L93 Difference]: Finished difference Result 2667 states and 3504 transitions. [2020-09-04 12:29:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 12:29:08,371 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 84 [2020-09-04 12:29:08,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 12:29:08,379 INFO L225 Difference]: With dead ends: 2667 [2020-09-04 12:29:08,379 INFO L226 Difference]: Without dead ends: 1360 [2020-09-04 12:29:08,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-09-04 12:29:08,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2020-09-04 12:29:08,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1097. [2020-09-04 12:29:08,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2020-09-04 12:29:08,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1306 transitions. [2020-09-04 12:29:08,607 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1306 transitions. Word has length 84 [2020-09-04 12:29:08,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 12:29:08,607 INFO L479 AbstractCegarLoop]: Abstraction has 1097 states and 1306 transitions. [2020-09-04 12:29:08,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 12:29:08,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1306 transitions. [2020-09-04 12:29:08,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-04 12:29:08,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 12:29:08,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 12:29:08,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 12:29:08,612 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 12:29:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 12:29:08,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1546032113, now seen corresponding path program 1 times [2020-09-04 12:29:08,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 12:29:08,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921017094] [2020-09-04 12:29:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 12:29:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 12:29:08,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 12:29:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 12:29:08,776 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 12:29:08,895 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-04 12:29:08,895 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 12:29:08,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 12:29:09,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 12:29:09 BoogieIcfgContainer [2020-09-04 12:29:09,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 12:29:09,083 INFO L168 Benchmark]: Toolchain (without parser) took 35132.50 ms. Allocated memory was 140.5 MB in the beginning and 671.6 MB in the end (delta: 531.1 MB). Free memory was 103.0 MB in the beginning and 96.6 MB in the end (delta: 6.4 MB). Peak memory consumption was 537.5 MB. Max. memory is 7.1 GB. [2020-09-04 12:29:09,083 INFO L168 Benchmark]: CDTParser took 1.43 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 12:29:09,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.63 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.8 MB in the beginning and 174.0 MB in the end (delta: -71.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-09-04 12:29:09,085 INFO L168 Benchmark]: Boogie Preprocessor took 97.47 ms. Allocated memory is still 204.5 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-04 12:29:09,086 INFO L168 Benchmark]: RCFGBuilder took 1160.74 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 169.2 MB in the beginning and 197.8 MB in the end (delta: -28.5 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-09-04 12:29:09,087 INFO L168 Benchmark]: TraceAbstraction took 33188.31 ms. Allocated memory was 237.0 MB in the beginning and 671.6 MB in the end (delta: 434.6 MB). Free memory was 197.8 MB in the beginning and 96.6 MB in the end (delta: 101.2 MB). Peak memory consumption was 535.8 MB. Max. memory is 7.1 GB. [2020-09-04 12:29:09,090 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.63 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.8 MB in the beginning and 174.0 MB in the end (delta: -71.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.47 ms. Allocated memory is still 204.5 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1160.74 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 169.2 MB in the beginning and 197.8 MB in the end (delta: -28.5 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33188.31 ms. Allocated memory was 237.0 MB in the beginning and 671.6 MB in the end (delta: 434.6 MB). Free memory was 197.8 MB in the beginning and 96.6 MB in the end (delta: 101.2 MB). Peak memory consumption was 535.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 490]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L352] int cleanupTimeShifts = 4; [L664] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L862] int waterLevel = 1; [L863] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=166, \old(methaneLevelCritical)=147, \old(pumpRunning)=137, \old(systemActive)=136, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L428] int retValue_acc ; [L429] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L434] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L435] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L477] int retValue_acc ; [L480] retValue_acc = 1 [L481] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L435] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L435] tmp = valid_product() [L437] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L439] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L440] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L419] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] int splverifierCounter ; [L258] int tmp ; [L259] int tmp___0 ; [L260] int tmp___1 ; [L261] int tmp___2 ; [L264] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L266] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L268] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L274] tmp = __VERIFIER_nondet_int() [L276] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L278] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] COND TRUE waterLevel < 2 [L881] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L284] tmp___0 = __VERIFIER_nondet_int() [L286] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, waterLevel=2] [L288] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] COND FALSE !(\read(methaneLevelCritical)) [L895] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L288] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, waterLevel=2] [L294] tmp___2 = __VERIFIER_nondet_int() [L296] COND FALSE !(\read(tmp___2)) [L302] tmp___1 = __VERIFIER_nondet_int() [L304] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=-2, tmp___1=0, tmp___2=0, waterLevel=2] [L313] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L59] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L66] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L68] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L114] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L117] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L132] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L88] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L91] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L93] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L211] int retValue_acc ; [L212] int tmp ; [L213] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L217] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L942] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L945] COND FALSE !(waterLevel < 2) [L949] retValue_acc = 0 [L950] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L217] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isHighWaterSensorDry() [L219] COND FALSE !(\read(tmp)) [L222] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L224] retValue_acc = tmp___0 [L225] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L93] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp = isHighWaterLevel() [L95] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L97] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L142] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L97] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L132] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L68] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L74] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L327] int tmp ; [L328] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L332] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L901] int retValue_acc ; [L904] retValue_acc = methaneLevelCritical [L905] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L332] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L332] tmp = isMethaneLevelCritical() [L334] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L336] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L166] int retValue_acc ; [L169] retValue_acc = pumpRunning [L170] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L336] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L336] tmp___0 = isPumpRunning() [L338] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L340] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L490] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 27.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 946 SDtfs, 1824 SDslu, 1213 SDs, 0 SdLazy, 5529 SolverSat, 1251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 11.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1331occurred 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: 1.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1514 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 603 NumberOfCodeBlocks, 603 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 507 ConstructedInterpolants, 0 QuantifiedInterpolants, 150284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...