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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:47:51,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:47:51,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:47:51,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:47:51,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:47:51,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:47:51,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:47:51,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:47:51,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:47:51,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:47:51,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:47:51,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:47:51,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:47:51,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:47:51,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:47:51,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:47:51,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:47:51,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:47:51,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:47:51,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:47:51,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:47:51,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:47:51,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:47:51,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:47:51,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:47:51,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:47:51,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:47:51,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:47:51,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:47:51,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:47:51,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:47:51,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:47:51,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:47:51,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:47:51,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:47:51,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:47:51,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:47:51,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:47:51,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:47:51,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:47:51,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:47:51,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:47:51,953 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:47:51,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:47:51,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:47:51,953 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:47:51,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:47:51,954 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:47:51,955 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:47:51,955 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:47:51,955 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:47:51,955 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:47:51,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:47:51,956 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:47:51,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:47:51,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:47:51,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:47:51,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:47:51,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:47:51,957 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:47:51,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:47:51,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:47:51,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:47:51,958 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:47:51,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:47:51,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:47:51,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:47:51,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:47:51,959 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:47:51,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:47:51,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:47:51,960 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:47:51,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:47:52,001 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:47:52,004 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:47:52,006 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:47:52,006 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:47:52,007 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2019-09-10 02:47:52,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/782783818/dfa35c8f3686449194808e85212ac197/FLAGc2ca0ec68 [2019-09-10 02:47:52,647 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:47:52,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2019-09-10 02:47:52,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/782783818/dfa35c8f3686449194808e85212ac197/FLAGc2ca0ec68 [2019-09-10 02:47:52,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/782783818/dfa35c8f3686449194808e85212ac197 [2019-09-10 02:47:52,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:47:52,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:47:52,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:52,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:47:52,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:47:52,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:52" (1/1) ... [2019-09-10 02:47:52,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788c9ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:52, skipping insertion in model container [2019-09-10 02:47:52,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:52" (1/1) ... [2019-09-10 02:47:52,975 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:47:53,021 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:47:53,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:53,471 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:47:53,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:53,639 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:47:53,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:53 WrapperNode [2019-09-10 02:47:53,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:53,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:47:53,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:47:53,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:47:53,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:53" (1/1) ... [2019-09-10 02:47:53,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:53" (1/1) ... [2019-09-10 02:47:53,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:53" (1/1) ... [2019-09-10 02:47:53,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:53" (1/1) ... [2019-09-10 02:47:53,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:53" (1/1) ... [2019-09-10 02:47:53,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:53" (1/1) ... [2019-09-10 02:47:53,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:53" (1/1) ... [2019-09-10 02:47:53,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:47:53,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:47:53,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:47:53,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:47:53,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:47:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:47:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:47:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:47:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:47:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:47:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:47:53,799 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:47:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:47:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:47:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:47:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:47:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:47:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:47:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:47:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:47:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:47:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:47:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:47:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:47:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:47:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:47:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:47:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:47:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:47:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:47:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:47:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:47:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:47:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:47:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:47:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:47:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:47:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:47:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:47:53,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:47:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:47:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:47:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:47:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:47:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:47:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:47:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:47:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:47:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:47:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:47:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:47:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:47:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:47:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:47:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:47:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:47:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:47:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:47:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:47:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:47:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:47:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:47:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:47:53,811 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:47:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:47:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:47:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:47:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:47:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:47:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:47:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:47:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:47:54,908 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:47:54,909 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:47:54,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:54 BoogieIcfgContainer [2019-09-10 02:47:54,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:47:54,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:47:54,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:47:54,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:47:54,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:47:52" (1/3) ... [2019-09-10 02:47:54,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17aac7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:54, skipping insertion in model container [2019-09-10 02:47:54,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:53" (2/3) ... [2019-09-10 02:47:54,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17aac7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:54, skipping insertion in model container [2019-09-10 02:47:54,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:54" (3/3) ... [2019-09-10 02:47:54,919 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2019-09-10 02:47:54,929 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:47:54,938 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:47:54,955 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:47:54,987 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:47:54,988 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:47:54,988 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:47:54,988 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:47:54,988 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:47:54,989 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:47:54,989 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:47:54,989 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:47:55,008 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2019-09-10 02:47:55,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:47:55,021 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:55,022 INFO L399 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] [2019-09-10 02:47:55,025 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:55,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:55,031 INFO L82 PathProgramCache]: Analyzing trace with hash -963613915, now seen corresponding path program 1 times [2019-09-10 02:47:55,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:55,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:55,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,086 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:55,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:55,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:47:55,402 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:55,408 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:47:55,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:47:55,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:55,427 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 2 states. [2019-09-10 02:47:55,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:55,461 INFO L93 Difference]: Finished difference Result 144 states and 169 transitions. [2019-09-10 02:47:55,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:47:55,462 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:47:55,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:55,480 INFO L225 Difference]: With dead ends: 144 [2019-09-10 02:47:55,481 INFO L226 Difference]: Without dead ends: 133 [2019-09-10 02:47:55,484 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:55,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-09-10 02:47:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-09-10 02:47:55,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-09-10 02:47:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2019-09-10 02:47:55,537 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 46 [2019-09-10 02:47:55,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:55,538 INFO L475 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2019-09-10 02:47:55,538 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:47:55,538 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2019-09-10 02:47:55,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:47:55,542 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:55,542 INFO L399 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] [2019-09-10 02:47:55,542 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:55,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:55,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1539591980, now seen corresponding path program 1 times [2019-09-10 02:47:55,543 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:55,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:55,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,545 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:55,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:55,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:55,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:47:55,685 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:55,687 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:47:55,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:47:55,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:55,689 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand 3 states. [2019-09-10 02:47:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:55,721 INFO L93 Difference]: Finished difference Result 124 states and 145 transitions. [2019-09-10 02:47:55,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:47:55,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:47:55,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:55,725 INFO L225 Difference]: With dead ends: 124 [2019-09-10 02:47:55,726 INFO L226 Difference]: Without dead ends: 124 [2019-09-10 02:47:55,727 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:55,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-09-10 02:47:55,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-09-10 02:47:55,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-10 02:47:55,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2019-09-10 02:47:55,755 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 47 [2019-09-10 02:47:55,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:55,756 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2019-09-10 02:47:55,756 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:47:55,756 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2019-09-10 02:47:55,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:47:55,765 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:55,765 INFO L399 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] [2019-09-10 02:47:55,766 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:55,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:55,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1079098286, now seen corresponding path program 1 times [2019-09-10 02:47:55,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:55,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:55,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:55,770 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:55,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:55,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:55,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:55,930 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:55,931 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:55,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:55,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:55,932 INFO L87 Difference]: Start difference. First operand 124 states and 145 transitions. Second operand 7 states. [2019-09-10 02:47:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:56,420 INFO L93 Difference]: Finished difference Result 274 states and 330 transitions. [2019-09-10 02:47:56,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:47:56,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:47:56,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:56,425 INFO L225 Difference]: With dead ends: 274 [2019-09-10 02:47:56,425 INFO L226 Difference]: Without dead ends: 274 [2019-09-10 02:47:56,426 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:47:56,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-09-10 02:47:56,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 262. [2019-09-10 02:47:56,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2019-09-10 02:47:56,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 318 transitions. [2019-09-10 02:47:56,458 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 318 transitions. Word has length 52 [2019-09-10 02:47:56,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:56,459 INFO L475 AbstractCegarLoop]: Abstraction has 262 states and 318 transitions. [2019-09-10 02:47:56,459 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:56,459 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 318 transitions. [2019-09-10 02:47:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:47:56,461 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:56,462 INFO L399 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] [2019-09-10 02:47:56,462 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:56,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:56,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1051584563, now seen corresponding path program 1 times [2019-09-10 02:47:56,463 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:56,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:56,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,468 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:56,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:56,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:56,632 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:56,632 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:56,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:56,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:56,633 INFO L87 Difference]: Start difference. First operand 262 states and 318 transitions. Second operand 6 states. [2019-09-10 02:47:56,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:56,876 INFO L93 Difference]: Finished difference Result 485 states and 592 transitions. [2019-09-10 02:47:56,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:56,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-10 02:47:56,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:56,890 INFO L225 Difference]: With dead ends: 485 [2019-09-10 02:47:56,890 INFO L226 Difference]: Without dead ends: 485 [2019-09-10 02:47:56,891 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:47:56,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-09-10 02:47:56,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 479. [2019-09-10 02:47:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2019-09-10 02:47:56,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 586 transitions. [2019-09-10 02:47:56,955 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 586 transitions. Word has length 57 [2019-09-10 02:47:56,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:56,956 INFO L475 AbstractCegarLoop]: Abstraction has 479 states and 586 transitions. [2019-09-10 02:47:56,956 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:56,956 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 586 transitions. [2019-09-10 02:47:56,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-10 02:47:56,959 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:56,959 INFO L399 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] [2019-09-10 02:47:56,959 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:56,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:56,960 INFO L82 PathProgramCache]: Analyzing trace with hash -450930313, now seen corresponding path program 1 times [2019-09-10 02:47:56,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:56,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:56,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:56,962 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:57,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:57,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:57,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:57,073 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:57,075 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:57,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:57,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:57,076 INFO L87 Difference]: Start difference. First operand 479 states and 586 transitions. Second operand 7 states. [2019-09-10 02:47:57,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:57,808 INFO L93 Difference]: Finished difference Result 807 states and 1030 transitions. [2019-09-10 02:47:57,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:47:57,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-10 02:47:57,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:57,815 INFO L225 Difference]: With dead ends: 807 [2019-09-10 02:47:57,815 INFO L226 Difference]: Without dead ends: 807 [2019-09-10 02:47:57,816 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:47:57,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2019-09-10 02:47:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 709. [2019-09-10 02:47:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-09-10 02:47:57,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 863 transitions. [2019-09-10 02:47:57,863 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 863 transitions. Word has length 61 [2019-09-10 02:47:57,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:57,863 INFO L475 AbstractCegarLoop]: Abstraction has 709 states and 863 transitions. [2019-09-10 02:47:57,863 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:57,864 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 863 transitions. [2019-09-10 02:47:57,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:47:57,866 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:57,866 INFO L399 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] [2019-09-10 02:47:57,867 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:57,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:57,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1506642599, now seen corresponding path program 1 times [2019-09-10 02:47:57,867 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:57,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:57,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:57,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:57,869 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:57,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:57,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:57,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:47:57,972 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:57,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:47:57,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:47:57,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:47:57,973 INFO L87 Difference]: Start difference. First operand 709 states and 863 transitions. Second operand 4 states. [2019-09-10 02:47:58,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:58,208 INFO L93 Difference]: Finished difference Result 1927 states and 2469 transitions. [2019-09-10 02:47:58,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:47:58,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2019-09-10 02:47:58,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:58,223 INFO L225 Difference]: With dead ends: 1927 [2019-09-10 02:47:58,223 INFO L226 Difference]: Without dead ends: 1927 [2019-09-10 02:47:58,224 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:47:58,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2019-09-10 02:47:58,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1881. [2019-09-10 02:47:58,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1881 states. [2019-09-10 02:47:58,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2377 transitions. [2019-09-10 02:47:58,303 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2377 transitions. Word has length 84 [2019-09-10 02:47:58,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:58,304 INFO L475 AbstractCegarLoop]: Abstraction has 1881 states and 2377 transitions. [2019-09-10 02:47:58,304 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:47:58,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2377 transitions. [2019-09-10 02:47:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:47:58,308 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:58,308 INFO L399 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] [2019-09-10 02:47:58,308 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:58,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:58,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1762832698, now seen corresponding path program 1 times [2019-09-10 02:47:58,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:58,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:58,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:58,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:58,310 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:58,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:58,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:58,437 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:58,437 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:58,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:58,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:58,438 INFO L87 Difference]: Start difference. First operand 1881 states and 2377 transitions. Second operand 6 states. [2019-09-10 02:47:58,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:58,480 INFO L93 Difference]: Finished difference Result 1941 states and 2441 transitions. [2019-09-10 02:47:58,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:58,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-10 02:47:58,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:58,492 INFO L225 Difference]: With dead ends: 1941 [2019-09-10 02:47:58,492 INFO L226 Difference]: Without dead ends: 1941 [2019-09-10 02:47:58,493 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:58,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2019-09-10 02:47:58,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1941. [2019-09-10 02:47:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1941 states. [2019-09-10 02:47:58,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 2441 transitions. [2019-09-10 02:47:58,594 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 2441 transitions. Word has length 84 [2019-09-10 02:47:58,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:58,595 INFO L475 AbstractCegarLoop]: Abstraction has 1941 states and 2441 transitions. [2019-09-10 02:47:58,595 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:58,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 2441 transitions. [2019-09-10 02:47:58,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:47:58,599 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:58,599 INFO L399 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] [2019-09-10 02:47:58,599 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:58,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:58,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1785464952, now seen corresponding path program 1 times [2019-09-10 02:47:58,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:58,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:58,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:58,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:58,601 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:58,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:47:58,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:58,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:47:58,719 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:58,721 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:47:58,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:47:58,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:58,724 INFO L87 Difference]: Start difference. First operand 1941 states and 2441 transitions. Second operand 8 states. [2019-09-10 02:47:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:58,788 INFO L93 Difference]: Finished difference Result 1691 states and 2087 transitions. [2019-09-10 02:47:58,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:58,791 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2019-09-10 02:47:58,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:58,802 INFO L225 Difference]: With dead ends: 1691 [2019-09-10 02:47:58,803 INFO L226 Difference]: Without dead ends: 1691 [2019-09-10 02:47:58,803 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:47:58,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2019-09-10 02:47:58,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1691. [2019-09-10 02:47:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2019-09-10 02:47:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2087 transitions. [2019-09-10 02:47:58,895 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2087 transitions. Word has length 84 [2019-09-10 02:47:58,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:58,896 INFO L475 AbstractCegarLoop]: Abstraction has 1691 states and 2087 transitions. [2019-09-10 02:47:58,896 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:47:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2087 transitions. [2019-09-10 02:47:58,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-10 02:47:58,899 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:58,899 INFO L399 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] [2019-09-10 02:47:58,900 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:58,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:58,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1546032113, now seen corresponding path program 1 times [2019-09-10 02:47:58,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:58,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:58,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:58,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:58,901 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:47:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:47:59,729 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 02:47:59,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:47:59 BoogieIcfgContainer [2019-09-10 02:47:59,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:47:59,920 INFO L168 Benchmark]: Toolchain (without parser) took 6956.22 ms. Allocated memory was 135.3 MB in the beginning and 307.8 MB in the end (delta: 172.5 MB). Free memory was 88.9 MB in the beginning and 223.3 MB in the end (delta: -134.4 MB). Peak memory consumption was 184.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:59,921 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:47:59,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.32 ms. Allocated memory was 135.3 MB in the beginning and 201.3 MB in the end (delta: 66.1 MB). Free memory was 88.7 MB in the beginning and 165.4 MB in the end (delta: -76.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:59,923 INFO L168 Benchmark]: Boogie Preprocessor took 95.91 ms. Allocated memory is still 201.3 MB. Free memory was 165.4 MB in the beginning and 161.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:59,924 INFO L168 Benchmark]: RCFGBuilder took 1174.26 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 161.3 MB in the beginning and 194.0 MB in the end (delta: -32.7 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:59,925 INFO L168 Benchmark]: TraceAbstraction took 5001.28 ms. Allocated memory was 230.2 MB in the beginning and 307.8 MB in the end (delta: 77.6 MB). Free memory was 194.0 MB in the beginning and 223.3 MB in the end (delta: -29.3 MB). Peak memory consumption was 194.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:59,929 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.32 ms. Allocated memory was 135.3 MB in the beginning and 201.3 MB in the end (delta: 66.1 MB). Free memory was 88.7 MB in the beginning and 165.4 MB in the end (delta: -76.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.91 ms. Allocated memory is still 201.3 MB. Free memory was 165.4 MB in the beginning and 161.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1174.26 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 161.3 MB in the beginning and 194.0 MB in the end (delta: -32.7 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5001.28 ms. Allocated memory was 230.2 MB in the beginning and 307.8 MB in the end (delta: 77.6 MB). Free memory was 194.0 MB in the beginning and 223.3 MB in the end (delta: -29.3 MB). Peak memory consumption was 194.2 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; [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=8, 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=8, 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=8, 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. UNSAFE Result, 4.9s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1343 SDtfs, 739 SDslu, 3172 SDs, 0 SdLazy, 902 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1941occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 162 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 603 NumberOfCodeBlocks, 603 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 507 ConstructedInterpolants, 0 QuantifiedInterpolants, 56641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...