/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:33:21,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:33:21,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:33:21,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:33:21,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:33:21,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:33:21,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:33:21,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:33:21,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:33:21,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:33:21,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:33:21,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:33:21,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:33:21,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:33:21,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:33:21,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:33:21,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:33:21,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:33:21,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:33:21,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:33:21,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:33:21,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:33:21,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:33:21,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:33:21,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:33:21,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:33:21,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:33:21,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:33:21,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:33:21,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:33:21,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:33:21,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:33:21,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:33:21,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:33:21,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:33:21,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:33:21,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:33:21,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:33:21,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:33:21,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:33:21,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:33:21,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:33:21,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:33:21,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:33:21,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:33:21,903 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:33:21,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:33:21,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:33:21,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:33:21,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:33:21,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:33:21,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:33:21,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:33:21,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:33:21,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:33:21,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:33:21,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:33:21,906 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:33:21,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:33:21,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:33:21,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:21,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:33:21,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:33:21,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:33:21,908 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:33:22,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:33:22,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:33:22,194 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:33:22,196 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:33:22,196 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:33:22,197 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-07-07 12:33:22,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982c87e74/bbbad3e7812c4838af6e24a260b2f9da/FLAG92f53c3d5 [2020-07-07 12:33:22,821 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:33:22,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-07-07 12:33:22,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982c87e74/bbbad3e7812c4838af6e24a260b2f9da/FLAG92f53c3d5 [2020-07-07 12:33:23,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982c87e74/bbbad3e7812c4838af6e24a260b2f9da [2020-07-07 12:33:23,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:33:23,117 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:33:23,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:23,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:33:23,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:33:23,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:23" (1/1) ... [2020-07-07 12:33:23,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1706c328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23, skipping insertion in model container [2020-07-07 12:33:23,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:23" (1/1) ... [2020-07-07 12:33:23,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:33:23,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:33:23,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:23,611 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:33:23,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:23,748 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:33:23,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23 WrapperNode [2020-07-07 12:33:23,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:23,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:33:23,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:33:23,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:33:23,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23" (1/1) ... [2020-07-07 12:33:23,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23" (1/1) ... [2020-07-07 12:33:23,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23" (1/1) ... [2020-07-07 12:33:23,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23" (1/1) ... [2020-07-07 12:33:23,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23" (1/1) ... [2020-07-07 12:33:23,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23" (1/1) ... [2020-07-07 12:33:23,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23" (1/1) ... [2020-07-07 12:33:23,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:33:23,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:33:23,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:33:23,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:33:23,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:33:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:33:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:33:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:33:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:33:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:33:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:33:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:33:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:33:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:33:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:33:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:33:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:33:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:33:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:33:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:33:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:33:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:33:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:33:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:33:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:33:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:33:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:33:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:33:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:33:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:33:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:33:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:33:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:33:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:33:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:33:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:33:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:33:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:33:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:33:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:33:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:33:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:33:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:33:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:33:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:33:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:33:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:33:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:33:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:33:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:33:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:33:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:33:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:33:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:33:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:33:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:33:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:33:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:33:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:33:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:33:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:33:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:33:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:33:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:33:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:33:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:33:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:33:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:33:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:33:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:33:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:33:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:33:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:33:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:33:25,014 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:33:25,015 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:33:25,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:25 BoogieIcfgContainer [2020-07-07 12:33:25,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:33:25,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:33:25,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:33:25,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:33:25,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:33:23" (1/3) ... [2020-07-07 12:33:25,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b001b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:25, skipping insertion in model container [2020-07-07 12:33:25,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:23" (2/3) ... [2020-07-07 12:33:25,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b001b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:25, skipping insertion in model container [2020-07-07 12:33:25,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:25" (3/3) ... [2020-07-07 12:33:25,029 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2020-07-07 12:33:25,038 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:33:25,046 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:33:25,060 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:33:25,080 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:33:25,080 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:33:25,080 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:33:25,080 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:33:25,081 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:33:25,081 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:33:25,081 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:33:25,081 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:33:25,099 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-07-07 12:33:25,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:33:25,120 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:25,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:25,121 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:25,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:25,128 INFO L82 PathProgramCache]: Analyzing trace with hash 984796511, now seen corresponding path program 1 times [2020-07-07 12:33:25,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:25,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65002514] [2020-07-07 12:33:25,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,853 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:26,042 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:26,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65002514] [2020-07-07 12:33:26,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:26,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:33:26,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341634368] [2020-07-07 12:33:26,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:33:26,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:26,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:33:26,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:26,072 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-07-07 12:33:27,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:27,264 INFO L93 Difference]: Finished difference Result 435 states and 517 transitions. [2020-07-07 12:33:27,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:33:27,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:33:27,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:27,282 INFO L225 Difference]: With dead ends: 435 [2020-07-07 12:33:27,282 INFO L226 Difference]: Without dead ends: 274 [2020-07-07 12:33:27,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:27,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-07-07 12:33:27,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-07-07 12:33:27,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-07-07 12:33:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 253 transitions. [2020-07-07 12:33:27,410 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 253 transitions. Word has length 153 [2020-07-07 12:33:27,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:27,411 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 253 transitions. [2020-07-07 12:33:27,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:33:27,412 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 253 transitions. [2020-07-07 12:33:27,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:33:27,416 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:27,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:27,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:33:27,417 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:27,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:27,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1074714265, now seen corresponding path program 1 times [2020-07-07 12:33:27,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:27,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460113364] [2020-07-07 12:33:27,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:27,794 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:27,902 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:27,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460113364] [2020-07-07 12:33:27,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:27,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:33:27,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474259100] [2020-07-07 12:33:27,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:33:27,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:27,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:33:27,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:33:27,905 INFO L87 Difference]: Start difference. First operand 235 states and 253 transitions. Second operand 4 states. [2020-07-07 12:33:28,482 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:29,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:29,235 INFO L93 Difference]: Finished difference Result 352 states and 392 transitions. [2020-07-07 12:33:29,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:33:29,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:33:29,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:29,241 INFO L225 Difference]: With dead ends: 352 [2020-07-07 12:33:29,241 INFO L226 Difference]: Without dead ends: 257 [2020-07-07 12:33:29,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:33:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-07-07 12:33:29,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 225. [2020-07-07 12:33:29,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-07-07 12:33:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 240 transitions. [2020-07-07 12:33:29,309 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 240 transitions. Word has length 154 [2020-07-07 12:33:29,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:29,310 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 240 transitions. [2020-07-07 12:33:29,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:33:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 240 transitions. [2020-07-07 12:33:29,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:33:29,313 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:29,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:29,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:33:29,314 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:29,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:29,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1460051564, now seen corresponding path program 1 times [2020-07-07 12:33:29,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:29,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808082272] [2020-07-07 12:33:29,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:29,665 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:29,816 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:29,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808082272] [2020-07-07 12:33:29,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:29,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:29,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218213597] [2020-07-07 12:33:29,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:29,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:29,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:29,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:29,819 INFO L87 Difference]: Start difference. First operand 225 states and 240 transitions. Second operand 9 states. [2020-07-07 12:33:30,248 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:30,588 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:33:30,827 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:33:31,066 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:31,299 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:31,565 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:32,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:32,823 INFO L93 Difference]: Finished difference Result 372 states and 417 transitions. [2020-07-07 12:33:32,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 12:33:32,824 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:33:32,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:32,827 INFO L225 Difference]: With dead ends: 372 [2020-07-07 12:33:32,828 INFO L226 Difference]: Without dead ends: 257 [2020-07-07 12:33:32,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-07-07 12:33:32,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-07-07 12:33:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 225. [2020-07-07 12:33:32,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-07-07 12:33:32,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 239 transitions. [2020-07-07 12:33:32,921 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 239 transitions. Word has length 163 [2020-07-07 12:33:32,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:32,921 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 239 transitions. [2020-07-07 12:33:32,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:32,922 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 239 transitions. [2020-07-07 12:33:32,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-07 12:33:32,924 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:32,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:32,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:33:32,925 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:32,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:32,925 INFO L82 PathProgramCache]: Analyzing trace with hash 973971077, now seen corresponding path program 1 times [2020-07-07 12:33:32,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:32,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306268066] [2020-07-07 12:33:32,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,244 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:33,425 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:33,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306268066] [2020-07-07 12:33:33,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:33,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:33,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532367714] [2020-07-07 12:33:33,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:33,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:33,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:33,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:33,429 INFO L87 Difference]: Start difference. First operand 225 states and 239 transitions. Second operand 9 states. [2020-07-07 12:33:33,993 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:35,779 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:36,035 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:36,346 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:36,605 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:36,826 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:37,074 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:37,311 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:37,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:37,902 INFO L93 Difference]: Finished difference Result 522 states and 613 transitions. [2020-07-07 12:33:37,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:33:37,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-07-07 12:33:37,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:37,910 INFO L225 Difference]: With dead ends: 522 [2020-07-07 12:33:37,911 INFO L226 Difference]: Without dead ends: 407 [2020-07-07 12:33:37,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:33:37,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-07-07 12:33:38,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 332. [2020-07-07 12:33:38,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-07-07 12:33:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 363 transitions. [2020-07-07 12:33:38,025 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 363 transitions. Word has length 171 [2020-07-07 12:33:38,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:38,026 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 363 transitions. [2020-07-07 12:33:38,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:38,026 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 363 transitions. [2020-07-07 12:33:38,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-07 12:33:38,028 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:38,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:38,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:33:38,029 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:38,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:38,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1376953546, now seen corresponding path program 1 times [2020-07-07 12:33:38,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:38,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161543150] [2020-07-07 12:33:38,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,315 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:38,484 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:38,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161543150] [2020-07-07 12:33:38,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:38,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:33:38,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729348182] [2020-07-07 12:33:38,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:33:38,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:38,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:33:38,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:33:38,489 INFO L87 Difference]: Start difference. First operand 332 states and 363 transitions. Second operand 6 states. [2020-07-07 12:33:38,930 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:39,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:39,530 INFO L93 Difference]: Finished difference Result 501 states and 567 transitions. [2020-07-07 12:33:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 12:33:39,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2020-07-07 12:33:39,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:39,535 INFO L225 Difference]: With dead ends: 501 [2020-07-07 12:33:39,535 INFO L226 Difference]: Without dead ends: 279 [2020-07-07 12:33:39,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:33:39,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-07-07 12:33:39,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 258. [2020-07-07 12:33:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-07-07 12:33:39,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 273 transitions. [2020-07-07 12:33:39,619 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 273 transitions. Word has length 176 [2020-07-07 12:33:39,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:39,620 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 273 transitions. [2020-07-07 12:33:39,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:33:39,620 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 273 transitions. [2020-07-07 12:33:39,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-07 12:33:39,622 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:39,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:39,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:33:39,623 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:39,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:39,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1373722854, now seen corresponding path program 1 times [2020-07-07 12:33:39,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:39,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082154349] [2020-07-07 12:33:39,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:39,991 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:39,991 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:33:39,991 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:33:39,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:33:40,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:33:40 BoogieIcfgContainer [2020-07-07 12:33:40,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:33:40,015 INFO L168 Benchmark]: Toolchain (without parser) took 16898.92 ms. Allocated memory was 137.9 MB in the beginning and 563.1 MB in the end (delta: 425.2 MB). Free memory was 100.7 MB in the beginning and 291.2 MB in the end (delta: -190.4 MB). Peak memory consumption was 234.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:40,016 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:33:40,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.00 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 170.8 MB in the end (delta: -70.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:40,018 INFO L168 Benchmark]: Boogie Preprocessor took 106.85 ms. Allocated memory is still 202.4 MB. Free memory was 170.8 MB in the beginning and 166.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:40,019 INFO L168 Benchmark]: RCFGBuilder took 1165.28 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 166.7 MB in the beginning and 177.2 MB in the end (delta: -10.5 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:40,020 INFO L168 Benchmark]: TraceAbstraction took 14991.21 ms. Allocated memory was 233.8 MB in the beginning and 563.1 MB in the end (delta: 329.3 MB). Free memory was 177.2 MB in the beginning and 291.2 MB in the end (delta: -114.0 MB). Peak memory consumption was 215.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:40,023 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 631.00 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 170.8 MB in the end (delta: -70.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.85 ms. Allocated memory is still 202.4 MB. Free memory was 170.8 MB in the beginning and 166.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1165.28 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 166.7 MB in the beginning and 177.2 MB in the end (delta: -10.5 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14991.21 ms. Allocated memory was 233.8 MB in the beginning and 563.1 MB in the end (delta: 329.3 MB). Free memory was 177.2 MB in the beginning and 291.2 MB in the end (delta: -114.0 MB). Peak memory consumption was 215.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L661] int retValue_acc ; [L662] int tmp ; [L666] FCALL select_helpers() [L667] FCALL select_features() [L668] CALL, EXPR valid_product() [L576] int retValue_acc ; [L579] retValue_acc = 1 [L580] return (retValue_acc); [L668] RET, EXPR valid_product() [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) [L672] FCALL setup() [L673] CALL runTest() [L655] CALL test() [L857] int splverifierCounter ; [L858] int tmp ; [L859] int tmp___0 ; [L860] int tmp___1 ; [L861] int tmp___2 ; [L864] splverifierCounter = 0 [L866] COND TRUE 1 [L868] COND TRUE splverifierCounter < 4 [L874] tmp = __VERIFIER_nondet_int() [L876] COND TRUE \read(tmp) [L878] CALL waterRise() [L476] COND TRUE waterLevel < 2 [L477] waterLevel = waterLevel + 1 [L878] RET waterRise() [L884] tmp___0 = __VERIFIER_nondet_int() [L886] COND FALSE !(\read(tmp___0)) [L894] tmp___2 = __VERIFIER_nondet_int() [L896] COND TRUE \read(tmp___2) [L909] CALL timeShift() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L722] int tmp ; [L725] COND FALSE !(\read(pumpRunning)) [L740] FCALL processEnvironment__wrappee__base() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L497] int retValue_acc ; [L500] retValue_acc = methaneLevelCritical [L501] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L792] int retValue_acc ; [L795] retValue_acc = pumpRunning [L796] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1033 SDtfs, 1392 SDslu, 1226 SDs, 0 SdLazy, 2428 SolverSat, 396 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 199 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...